The document summarizes the features and specifications of the Atmel ATmega328/P 8-bit microcontroller. It includes 32KB of flash memory, 2KB of SRAM, 1KB of EEPROM, 23 general purpose I/O lines, two 8-bit timers/counters, one 16-bit timer/counter, an 8-channel 10-bit ADC, SPI, I2C, and USART interfaces, and sleep modes for low power operation. It operates at speeds between 0-20MHz and supports in-system programming and self-programming of the flash memory through boot code. The microcontroller is available in PDIP, TQFP, and QFN packages and is supported by development tools
The document describes the features of an AVR 8-bit microcontroller, including its RISC architecture, memory capabilities, I/O ports, timers, USB and peripheral features. It has 8/16/32KB of flash memory, 512/512/1024 bytes of EEPROM and SRAM, and 22 programmable I/O lines. It includes analog and digital features such as timers, USART, SPI and a USB controller.
The document describes several microcontrollers from Atmel Corporation, including the ATmega8, ATmega16, and MCS-96. It provides details on the features and specifications of each microcontroller, such as their CPU architecture, memory, peripherals, I/O ports, analog-to-digital converters, timers, and power consumption. The ATmega8 and ATmega16 are 8-bit AVR microcontrollers with various memory sizes and peripheral options, while the MCS-96 is a 16-bit microcontroller used in embedded systems with on-chip RAM and various timers, interrupts, and I/O capabilities.
This document provides an overview of the features and specifications of the ATMEGA16 microcontroller. It describes the microcontroller's advanced RISC architecture, 131 powerful instructions that typically execute in a single clock cycle, and its 32x8 general purpose working registers. It also outlines the microcontroller's memory features like 16K bytes of flash memory and 512 bytes of EEPROM. Additional features discussed include timers/counters, PWM, ADC, serial interfaces, programming capabilities via JTAG, and various power management modes. The document concludes by mentioning some example projects that can be implemented using the ATMEGA16.
This document describes the features of the Atmel ATmega169P 8-bit microcontroller. It has 16KB of in-system programmable flash memory, 512B of EEPROM, 1KB of SRAM, and 54 programmable I/O lines. It features a powerful AVR 8-bit RISC processor, various timers, an ADC, serial interfaces, and low-power sleep modes. The microcontroller is supported by development tools and can be programmed in-system through its SPI interface.
The document discusses Atmel's AVR microcontroller family. It describes the growing AVR family which includes tiny, mega, and application specific AVR microcontrollers. The AVR architecture is scalable, has a RISC design with powerful instruction set, and provides high integration on a single chip. Development tools and support are also available for creating systems with AVR microcontrollers.
This document provides detailed information on the PIC16F87XA family of microcontrollers, including:
- Memory organization including Flash program memory, SRAM data memory, and EEPROM.
- Core peripherals like timers, capture/compare modules, serial communication interfaces, analog-to-digital converter, and comparators.
- Electrical specifications and packaging/pinout options.
- Instruction set, development tools, and other technical details.
The PIC16F87XA MCUs feature a RISC CPU, various timer/counter modules, serial interfaces, ADC, and programmable I/O. They are offered in 28 to 44-pin packages with up to 14K bytes of
The document provides an overview of AVR microcontrollers, including their history, architecture, types, and common peripherals. AVR microcontrollers were developed by Atmel beginning in 1996 and use on-chip flash memory for program storage. They are available in three categories - Tiny, Mega, and Xmega - with the Mega being the most popular. The AVR architecture employs 32 general purpose registers, static RAM, EEPROM, flash memory, timers/counters, and I/O ports. Common peripherals that can be interfaced include LEDs, 7-segment displays, switches, DC motors, and LCDs. Timers and interrupts are also discussed.
The document provides an overview of AVR microcontrollers, including:
- AVRs were originally developed in Norway and are now produced by Atmel. They are Harvard architecture 8-bit RISC microcontrollers.
- AVRs come in three broad categories based on memory size and features. They have integrated flash memory, RAM, and optional EEPROM.
- AVRs have 32 general purpose registers and internal I/O registers. Program execution uses a single level pipeline.
- AVRs support clock speeds up to 20MHz and achieve 1 MIPS per MHz. They include features like GPIO, timers, serial interfaces, ADC, and more specialized features depending on the model.
The document describes the features of an AVR 8-bit microcontroller, including its RISC architecture, memory capabilities, I/O ports, timers, USB and peripheral features. It has 8/16/32KB of flash memory, 512/512/1024 bytes of EEPROM and SRAM, and 22 programmable I/O lines. It includes analog and digital features such as timers, USART, SPI and a USB controller.
The document describes several microcontrollers from Atmel Corporation, including the ATmega8, ATmega16, and MCS-96. It provides details on the features and specifications of each microcontroller, such as their CPU architecture, memory, peripherals, I/O ports, analog-to-digital converters, timers, and power consumption. The ATmega8 and ATmega16 are 8-bit AVR microcontrollers with various memory sizes and peripheral options, while the MCS-96 is a 16-bit microcontroller used in embedded systems with on-chip RAM and various timers, interrupts, and I/O capabilities.
This document provides an overview of the features and specifications of the ATMEGA16 microcontroller. It describes the microcontroller's advanced RISC architecture, 131 powerful instructions that typically execute in a single clock cycle, and its 32x8 general purpose working registers. It also outlines the microcontroller's memory features like 16K bytes of flash memory and 512 bytes of EEPROM. Additional features discussed include timers/counters, PWM, ADC, serial interfaces, programming capabilities via JTAG, and various power management modes. The document concludes by mentioning some example projects that can be implemented using the ATMEGA16.
This document describes the features of the Atmel ATmega169P 8-bit microcontroller. It has 16KB of in-system programmable flash memory, 512B of EEPROM, 1KB of SRAM, and 54 programmable I/O lines. It features a powerful AVR 8-bit RISC processor, various timers, an ADC, serial interfaces, and low-power sleep modes. The microcontroller is supported by development tools and can be programmed in-system through its SPI interface.
The document discusses Atmel's AVR microcontroller family. It describes the growing AVR family which includes tiny, mega, and application specific AVR microcontrollers. The AVR architecture is scalable, has a RISC design with powerful instruction set, and provides high integration on a single chip. Development tools and support are also available for creating systems with AVR microcontrollers.
This document provides detailed information on the PIC16F87XA family of microcontrollers, including:
- Memory organization including Flash program memory, SRAM data memory, and EEPROM.
- Core peripherals like timers, capture/compare modules, serial communication interfaces, analog-to-digital converter, and comparators.
- Electrical specifications and packaging/pinout options.
- Instruction set, development tools, and other technical details.
The PIC16F87XA MCUs feature a RISC CPU, various timer/counter modules, serial interfaces, ADC, and programmable I/O. They are offered in 28 to 44-pin packages with up to 14K bytes of
The document provides an overview of AVR microcontrollers, including their history, architecture, types, and common peripherals. AVR microcontrollers were developed by Atmel beginning in 1996 and use on-chip flash memory for program storage. They are available in three categories - Tiny, Mega, and Xmega - with the Mega being the most popular. The AVR architecture employs 32 general purpose registers, static RAM, EEPROM, flash memory, timers/counters, and I/O ports. Common peripherals that can be interfaced include LEDs, 7-segment displays, switches, DC motors, and LCDs. Timers and interrupts are also discussed.
The document provides an overview of AVR microcontrollers, including:
- AVRs were originally developed in Norway and are now produced by Atmel. They are Harvard architecture 8-bit RISC microcontrollers.
- AVRs come in three broad categories based on memory size and features. They have integrated flash memory, RAM, and optional EEPROM.
- AVRs have 32 general purpose registers and internal I/O registers. Program execution uses a single level pipeline.
- AVRs support clock speeds up to 20MHz and achieve 1 MIPS per MHz. They include features like GPIO, timers, serial interfaces, ADC, and more specialized features depending on the model.
This document provides an overview of micro-controller systems and their features. It discusses the evolution from large computers to single-chip embedded controllers. Micro-controllers have limited components and are programmed with high-level languages. They contain various memory types including RAM, ROM, EEPROM and flash. Micro-controllers also feature things like timers, interrupts, analog to digital converters and serial I/O. They can operate with different architectures like Von Neumann or Harvard and use number systems like binary, decimal and hexadecimal. Recommended resources are provided to learn more.
Toshiba will use ARM cores in all future microcontroller application-specific standard products (ASSPs). This includes the ARM9 for display applications and Cortex M3 for embedded applications across various markets like home appliances, industrial equipment, consumer electronics, and automotive. Toshiba's Cortex M3 microcontrollers offer features like low power consumption, integrated analog circuits, safety certifications, and support for motor control, with families targeting applications in home appliances, industrial controls, sensors, and more. The document provides details on several Toshiba Cortex M3 microcontroller families and their target applications.
- Microcontrollers are small computers contained on a single chip that contain a processor core, memory, and input/output interfaces. They are used in automatically controlled embedded systems.
- The AVR is a family of microcontrollers developed by Atmel in the 1990s. It uses RISC architecture and is commonly used in hobbyist and commercial projects due to its low cost and availability.
- Code is burned onto AVR microcontrollers using a software program called Atmel Studio, which allows writing code in C or assembly language. The program is then loaded onto the microcontroller through its pins.
This document provides information about an embedded systems course offered at Maharajas Technological Institute. It includes details like the course code, credits, syllabus modules covering AVR microcontrollers and programming in assembly and C languages. It also discusses concepts like microcontrollers, AVR architecture, memory organization and instruction set of AVR microcontrollers. Examples are given of assembly language instructions like MOV, LDI, STS etc. and applications of embedded systems in various domains.
This document summarizes Arrow Israel's record sales in 2010 of microcontroller units (MCUs) based on the ARM architecture. It provides an overview of Arrow Israel's product portfolio including various ARM-based MCUs from manufacturers like NXP and Texas Instruments. Feature comparisons are given for the ARM7, Cortex-M0, M3, and M4 architectures. upcoming products like NXP's LPC11U00 Cortex-M0 MCU and Texas Instrument's Kinetis MCU families are also highlighted.
The document describes the internal architecture of the 89C52 microcontroller. It has the following on-chip facilities: 4k ROM, 128 byte RAM, one USRT, 32 I/O port lines, two 16-bit timers/counters, six interrupt sources, and an on-chip clock oscillator. Other family members have variations like 8k ROM, 256 byte RAM, and an extra timer/counter. The 89C52 architecture includes ports, memory, a CPU, and peripherals that allow it to interface with external devices.
Microcontrollers can be classified based on their bit size and embedded vs external design. The document then describes the characteristics of Complex Instruction Set Computing (CISC) and Reduced Instruction Set Computing (RISC) architectures. It introduces the Von Neumann and Harvard architectures and lists some common microcontroller families like 8051, PIC, and AVR. The document focuses on describing the AVR architecture, features of the ATmega16 microcontroller, and its memory types, peripherals, and instruction set.
This document provides an overview of embedded systems and microcontrollers. It defines embedded systems as dedicated systems that are hidden parts of larger systems. Microcontrollers are described as single-chip computers containing a CPU, memory, and I/O ports. The key differences between microprocessors and microcontrollers are explained. The document also discusses common microcontroller vendors including Atmel, various AVR microcontroller categories and features, and the Atmega16 microcontroller in detail.
The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K
bytes of in-system programmable Flash memory. The device is manufactured using
Atmel’s high-density nonvolatile memory technology and is compatible with the industry-
standard 80C51 instruction set and pinout. The on-chip Flash allows the program
memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer.
By combining a versatile 8-bit CPU with in-system programmable Flash on
a monolithic chip, the Atmel AT89S52 is a powerful microcontroller which provides a
highly-flexible and cost-effective solution to many embedded control applications.
The AT89S52 provides the following standard features: 8K bytes of Flash, 256 bytes
of RAM, 32 I/O lines, Watchdog timer, two data pointers, three 16-bit timer/counters, a
six-vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator,
and clock circuitry. In addition, the AT89S52 is designed with static logic for operation
down to zero frequency and supports two software selectable power saving modes.
The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port, and
interrupt system to continue functioning. The Power-down mode saves the RAM contents
but freezes the oscillator, disabling all other chip functions until the next interrupt
or hardware reset
This document describes the AT89C51 microcontroller. It includes a pinout diagram and descriptions of the pins including power, ground, ports 0-3, reset, ALE/PROG, PSEN, EA/VPP, oscillator pins, and alternate functions of port 3 pins. It provides a block diagram of the architecture and describes features like 4K bytes of flash memory, 128 bytes of RAM, timers, interrupts, serial port, and power saving idle and power down modes.
MCF51AG ColdFire MCUs for Large Appliance And Industrial ApplicationsPremier Farnell
The document introduces the ColdFire MCF51AG microcontrollers and their key features for large appliance and industrial applications. The MCF51AG128/AG96 MCUs offer optimal performance for demanding applications through features like a 50MHz CPU, DMA, integrated peripherals, safety functions, and software/development tools support. They are well-suited for applications like motor control, appliance systems control, and industrial device control.
The document discusses the ATmega32 microcontroller. It begins by defining a microcontroller as a small computer containing a processor, memory, and programmable input/output pins. It then lists some key features of the ATmega32 microcontroller, which include 32 I/O pins, 32KB of flash memory, 1024 bytes of EEPROM, and the ability to handle 3 external interrupts. The document also briefly covers the Von Neumann and Harvard architectures and how the ATmega32 is programmed using languages like Assembly, C, and C++ through the AVR studio software.
This document provides an overview of AVR and ARM microcontrollers. It discusses Atmel's AVR microcontroller series and key features of the ATmega16 microcontroller. It also covers the ARM7 microcontroller, features of the LPC2148, and interfacing examples for LEDs, LCDs, relays, buzzers, and DC motors. The document concludes by mentioning AVR Studio 4 and μVision4 as integrated development environments for programming AVR and ARM microcontrollers.
Developing an avr microcontroller systemnugnugmacmac
This document provides an introduction to microcontrollers and AVR microcontrollers. It discusses what microprocessors and microcontrollers are, how they are used in various electronic devices. It then focuses on the AVR architecture, its features like flash memory, SRAM, EEPROM. It demonstrates how to interface an AVR chip with an LCD display and program it to display "Hello World". It describes the tools and steps needed to program the AVR, including using AVR Studio, GCC compiler and PonyProg programmer.
This document contains lecture notes for an introduction to the MSP430 microcontroller family from Texas Instruments. It discusses the MSP430 architecture including the CPU, registers, instruction set, memory organization, peripherals and provides examples of MSP430-based systems. It also describes how to get started with the EasyWeb2 development board for the MSP430 using a simple code example to blink an LED by toggling a port pin.
This presentation gives an overview of the PIC micro-controllers. Additionally, it describes the advantages, disadvantages and applications of these micro-controllers. It also explains real-world projects that are possible using the PIC micro-controllers.
Gesture based vehicle movements control and alerting system docuVignan Munna
This document provides an overview and details of a gesture-based vehicle control and alert system project. It includes a block diagram showing the main hardware components (microcontroller, LCD display, power supply, MEMS sensor, voice IC, motor driver) and their connections. It also describes the software components used, including the Keil development environment and embedded C code. Circuit descriptions and explanations of each hardware component are provided.
This document provides an overview and specifications for the Atmel ATmega128 microcontroller. Key features include 128KB of flash memory, 4KB of EEPROM, 4KB of SRAM, 53 programmable I/O lines, two USARTs, an 8-channel 10-bit ADC, and six sleep modes for power savings. The microcontroller uses an 8-bit AVR architecture with 32 general purpose registers and operates between 0-16MHz. It is supported by development tools and libraries for capacitive touch sensing.
The document provides information on the features and specifications of the ATmega8535 microcontroller, which includes an 8-bit AVR CPU, 8K bytes of flash memory, 512 bytes of EEPROM, 512 bytes of SRAM, 32 general purpose I/O lines, timers, serial interfaces, analog to digital converter, and six power saving modes. It also summarizes the pin configurations and functions of the microcontroller.
The document describes the features of the ATmega8535 microcontroller, which includes an 8-bit AVR processor, 8K bytes of flash memory, 512 bytes of EEPROM, 512 bytes of SRAM, various timers and peripherals, and low-power sleep modes. It operates from 2.7-5.5V and has up to 16 MHz clock speed. The microcontroller has extensive I/O capabilities with 32 programmable pins that can serve various purposes including analog inputs, serial communication, and more.
This document provides an overview of the features and specifications of the ATmega164P/324P/644P microcontrollers. Key points include:
- It is an 8-bit AVR microcontroller with 16/32/64KB of flash memory, 512B/1KB/2KB of EEPROM, and 1KB/2KB/4KB of SRAM.
- It has an advanced RISC architecture with 131 powerful instructions that typically execute in a single clock cycle.
- It includes various peripherals like timers, PWM, ADC, USART, SPI and JTAG interface.
- It has 32 general purpose I/O lines and 32 general purpose working registers.
This document provides an overview of micro-controller systems and their features. It discusses the evolution from large computers to single-chip embedded controllers. Micro-controllers have limited components and are programmed with high-level languages. They contain various memory types including RAM, ROM, EEPROM and flash. Micro-controllers also feature things like timers, interrupts, analog to digital converters and serial I/O. They can operate with different architectures like Von Neumann or Harvard and use number systems like binary, decimal and hexadecimal. Recommended resources are provided to learn more.
Toshiba will use ARM cores in all future microcontroller application-specific standard products (ASSPs). This includes the ARM9 for display applications and Cortex M3 for embedded applications across various markets like home appliances, industrial equipment, consumer electronics, and automotive. Toshiba's Cortex M3 microcontrollers offer features like low power consumption, integrated analog circuits, safety certifications, and support for motor control, with families targeting applications in home appliances, industrial controls, sensors, and more. The document provides details on several Toshiba Cortex M3 microcontroller families and their target applications.
- Microcontrollers are small computers contained on a single chip that contain a processor core, memory, and input/output interfaces. They are used in automatically controlled embedded systems.
- The AVR is a family of microcontrollers developed by Atmel in the 1990s. It uses RISC architecture and is commonly used in hobbyist and commercial projects due to its low cost and availability.
- Code is burned onto AVR microcontrollers using a software program called Atmel Studio, which allows writing code in C or assembly language. The program is then loaded onto the microcontroller through its pins.
This document provides information about an embedded systems course offered at Maharajas Technological Institute. It includes details like the course code, credits, syllabus modules covering AVR microcontrollers and programming in assembly and C languages. It also discusses concepts like microcontrollers, AVR architecture, memory organization and instruction set of AVR microcontrollers. Examples are given of assembly language instructions like MOV, LDI, STS etc. and applications of embedded systems in various domains.
This document summarizes Arrow Israel's record sales in 2010 of microcontroller units (MCUs) based on the ARM architecture. It provides an overview of Arrow Israel's product portfolio including various ARM-based MCUs from manufacturers like NXP and Texas Instruments. Feature comparisons are given for the ARM7, Cortex-M0, M3, and M4 architectures. upcoming products like NXP's LPC11U00 Cortex-M0 MCU and Texas Instrument's Kinetis MCU families are also highlighted.
The document describes the internal architecture of the 89C52 microcontroller. It has the following on-chip facilities: 4k ROM, 128 byte RAM, one USRT, 32 I/O port lines, two 16-bit timers/counters, six interrupt sources, and an on-chip clock oscillator. Other family members have variations like 8k ROM, 256 byte RAM, and an extra timer/counter. The 89C52 architecture includes ports, memory, a CPU, and peripherals that allow it to interface with external devices.
Microcontrollers can be classified based on their bit size and embedded vs external design. The document then describes the characteristics of Complex Instruction Set Computing (CISC) and Reduced Instruction Set Computing (RISC) architectures. It introduces the Von Neumann and Harvard architectures and lists some common microcontroller families like 8051, PIC, and AVR. The document focuses on describing the AVR architecture, features of the ATmega16 microcontroller, and its memory types, peripherals, and instruction set.
This document provides an overview of embedded systems and microcontrollers. It defines embedded systems as dedicated systems that are hidden parts of larger systems. Microcontrollers are described as single-chip computers containing a CPU, memory, and I/O ports. The key differences between microprocessors and microcontrollers are explained. The document also discusses common microcontroller vendors including Atmel, various AVR microcontroller categories and features, and the Atmega16 microcontroller in detail.
The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K
bytes of in-system programmable Flash memory. The device is manufactured using
Atmel’s high-density nonvolatile memory technology and is compatible with the industry-
standard 80C51 instruction set and pinout. The on-chip Flash allows the program
memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer.
By combining a versatile 8-bit CPU with in-system programmable Flash on
a monolithic chip, the Atmel AT89S52 is a powerful microcontroller which provides a
highly-flexible and cost-effective solution to many embedded control applications.
The AT89S52 provides the following standard features: 8K bytes of Flash, 256 bytes
of RAM, 32 I/O lines, Watchdog timer, two data pointers, three 16-bit timer/counters, a
six-vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator,
and clock circuitry. In addition, the AT89S52 is designed with static logic for operation
down to zero frequency and supports two software selectable power saving modes.
The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port, and
interrupt system to continue functioning. The Power-down mode saves the RAM contents
but freezes the oscillator, disabling all other chip functions until the next interrupt
or hardware reset
This document describes the AT89C51 microcontroller. It includes a pinout diagram and descriptions of the pins including power, ground, ports 0-3, reset, ALE/PROG, PSEN, EA/VPP, oscillator pins, and alternate functions of port 3 pins. It provides a block diagram of the architecture and describes features like 4K bytes of flash memory, 128 bytes of RAM, timers, interrupts, serial port, and power saving idle and power down modes.
MCF51AG ColdFire MCUs for Large Appliance And Industrial ApplicationsPremier Farnell
The document introduces the ColdFire MCF51AG microcontrollers and their key features for large appliance and industrial applications. The MCF51AG128/AG96 MCUs offer optimal performance for demanding applications through features like a 50MHz CPU, DMA, integrated peripherals, safety functions, and software/development tools support. They are well-suited for applications like motor control, appliance systems control, and industrial device control.
The document discusses the ATmega32 microcontroller. It begins by defining a microcontroller as a small computer containing a processor, memory, and programmable input/output pins. It then lists some key features of the ATmega32 microcontroller, which include 32 I/O pins, 32KB of flash memory, 1024 bytes of EEPROM, and the ability to handle 3 external interrupts. The document also briefly covers the Von Neumann and Harvard architectures and how the ATmega32 is programmed using languages like Assembly, C, and C++ through the AVR studio software.
This document provides an overview of AVR and ARM microcontrollers. It discusses Atmel's AVR microcontroller series and key features of the ATmega16 microcontroller. It also covers the ARM7 microcontroller, features of the LPC2148, and interfacing examples for LEDs, LCDs, relays, buzzers, and DC motors. The document concludes by mentioning AVR Studio 4 and μVision4 as integrated development environments for programming AVR and ARM microcontrollers.
Developing an avr microcontroller systemnugnugmacmac
This document provides an introduction to microcontrollers and AVR microcontrollers. It discusses what microprocessors and microcontrollers are, how they are used in various electronic devices. It then focuses on the AVR architecture, its features like flash memory, SRAM, EEPROM. It demonstrates how to interface an AVR chip with an LCD display and program it to display "Hello World". It describes the tools and steps needed to program the AVR, including using AVR Studio, GCC compiler and PonyProg programmer.
This document contains lecture notes for an introduction to the MSP430 microcontroller family from Texas Instruments. It discusses the MSP430 architecture including the CPU, registers, instruction set, memory organization, peripherals and provides examples of MSP430-based systems. It also describes how to get started with the EasyWeb2 development board for the MSP430 using a simple code example to blink an LED by toggling a port pin.
This presentation gives an overview of the PIC micro-controllers. Additionally, it describes the advantages, disadvantages and applications of these micro-controllers. It also explains real-world projects that are possible using the PIC micro-controllers.
Gesture based vehicle movements control and alerting system docuVignan Munna
This document provides an overview and details of a gesture-based vehicle control and alert system project. It includes a block diagram showing the main hardware components (microcontroller, LCD display, power supply, MEMS sensor, voice IC, motor driver) and their connections. It also describes the software components used, including the Keil development environment and embedded C code. Circuit descriptions and explanations of each hardware component are provided.
This document provides an overview and specifications for the Atmel ATmega128 microcontroller. Key features include 128KB of flash memory, 4KB of EEPROM, 4KB of SRAM, 53 programmable I/O lines, two USARTs, an 8-channel 10-bit ADC, and six sleep modes for power savings. The microcontroller uses an 8-bit AVR architecture with 32 general purpose registers and operates between 0-16MHz. It is supported by development tools and libraries for capacitive touch sensing.
The document provides information on the features and specifications of the ATmega8535 microcontroller, which includes an 8-bit AVR CPU, 8K bytes of flash memory, 512 bytes of EEPROM, 512 bytes of SRAM, 32 general purpose I/O lines, timers, serial interfaces, analog to digital converter, and six power saving modes. It also summarizes the pin configurations and functions of the microcontroller.
The document describes the features of the ATmega8535 microcontroller, which includes an 8-bit AVR processor, 8K bytes of flash memory, 512 bytes of EEPROM, 512 bytes of SRAM, various timers and peripherals, and low-power sleep modes. It operates from 2.7-5.5V and has up to 16 MHz clock speed. The microcontroller has extensive I/O capabilities with 32 programmable pins that can serve various purposes including analog inputs, serial communication, and more.
This document provides an overview of the features and specifications of the ATmega164P/324P/644P microcontrollers. Key points include:
- It is an 8-bit AVR microcontroller with 16/32/64KB of flash memory, 512B/1KB/2KB of EEPROM, and 1KB/2KB/4KB of SRAM.
- It has an advanced RISC architecture with 131 powerful instructions that typically execute in a single clock cycle.
- It includes various peripherals like timers, PWM, ADC, USART, SPI and JTAG interface.
- It has 32 general purpose I/O lines and 32 general purpose working registers.
This document provides a summary of the features and specifications of the ATmega169P 8-bit microcontroller. It includes descriptions of the microcontroller's architecture, memory, I/O ports, peripherals, and electrical specifications. Key features include 16Kbytes of flash memory, 1Kbyte of SRAM, 512 bytes of EEPROM, 8-bit timers, PWM, ADC, SPI, and low-power sleep modes. The microcontroller is suitable for embedded applications requiring medium performance and low power consumption.
This document provides an overview and specifications for the Atmel AVR XMEGA D4 microcontroller family. It includes descriptions of the microcontroller's features such as flash memory size, SRAM, peripherals, operating voltage and frequency ranges, and packaging options. Typical applications for these microcontrollers are also listed.
This document summarizes the features and specifications of the Atmel ATmega8A 8-bit microcontroller. It includes:
- An 8-bit RISC CPU with 8KB of flash memory, 512B of EEPROM, and 1KB of SRAM.
- 23 general purpose I/O lines and 32 general purpose working registers.
- Timers, serial interfaces, ADC, and sleep modes for power savings.
- Packaged in PDIP, TQFP, and QFN/MLF packages with various pin configurations.
Atmel 8159-8-bit-avr-microcontroller-a tmega8-a_datasheetArpan Saha
This 8-bit microcontroller has features such as 8KB of flash memory, 512B of EEPROM, 1KB of SRAM, various I/O lines and ports, a 10-bit ADC, timers, serial interfaces, and low-power sleep modes. It uses an AVR RISC architecture that can execute instructions from flash memory at up to 1 MIPS per MHz for high performance. The document provides details on the microcontroller's pin configurations, peripherals, and CPU core architecture.
This document describes the features and specifications of the Atmel AVR ATmega32 8-bit microcontroller. It includes details about the microcontroller's architecture such as its instruction set, registers, memory, and peripherals. The document also provides information on the microcontroller's packaging, pinout, power consumption, and development tools support.
atemega adalah salah satu mikrokontroller yang banyak digunakan dalam pembuatan otomasi kontrol. mikrokontroller akan berguna layaknya sebuah CPU(central processing unit) dalam komputer.
The ATmega16A is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC
architecture. By executing powerful instructions in a single clock cycle, the ATmega16A
achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize
power consumption versus processing speed.
This document describes the features and specifications of the ATmega32 8-bit microcontroller. It includes details on the microcontroller's architecture such as its AVR CPU core, 32K bytes of flash memory, 1024 bytes of EEPROM, 2K bytes of SRAM, and various peripherals. It also provides information on the microcontroller's pins and packages, operating voltages, speed grades, and power consumption. The document is intended to provide an overview of the capabilities and technical specifications of the ATmega32 microcontroller.
This document discusses the implementation of a narrow band digital filter on a low-cost microcontroller. It implemented a 1kHz center frequency, 500Hz bandwidth filter on an Atmel ATmega163 microcontroller. It describes the hardware and software tools used, including the Atmel STK500 starter kit, CodeVisionAVR C compiler, and Atmel AVR Studio. It discusses the analog input and output configurations, sampling rate, and filter design considerations like fixed-point representation effects. The performance and tradeoffs of the implementation are evaluated.
This document provides information on the features and specifications of the Atmel ATmega8(L) 8-bit microcontroller. It has an 8-bit AVR CPU with advanced RISC architecture, 8KBytes of flash memory, 512Bytes of EEPROM, 1KByte of SRAM, and various I/O features. The microcontroller operates between 2.7-5.5V with a clock speed of 0-16MHz and has low power consumption of 3.6mA active, 1.0mA idle, and 0.5uA power-down modes.
The Atmega 328P microcontroller features a powerful RISC architecture with 131 instructions that execute in single clock cycles. It has 32 general purpose registers, two 8-bit timers/counters, one 16-bit timer/counter, six PWM channels, and a 10-bit ADC. Communication interfaces include SPI, USART, and I2C. It also has sleep modes, brown-out detection, and an internal oscillator. The AVR architecture uses a Harvard configuration with separate memory and buses for program and data. Its registers allow single cycle access and pointers enable efficient addressing. Common applications include Arduino boards, industrial control, power regulation, data processing, sensors, embedded systems, and motor control.
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Wireless energy meter monitoring with automated tariff calculationUdayalakshmi JK
Electricity billing has become a difficult task. The board has to make regular visit to the consumers house to make the reading. Also it can cause manual error. Now here we are monitoring the energy meter with modern techniques. The total energy consumed by the consumer and the consumption cost is known to the consumer and to the board by means of a hand held device.
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1. 8-bit AVR Microcontrollers
ATmega328/P
DATASHEET SUMMARY
Introduction
The Atmel
®
picoPower
®
ATmega328/P is a low-power CMOS 8-bit
microcontroller based on the AVR® enhanced RISC architecture. By
executing powerful instructions in a single clock cycle, the ATmega328/P
achieves throughputs close to 1MIPS per MHz. This empowers system
designer to optimize the device for power consumption versus processing
speed.
Feature
High Performance, Low Power Atmel®AVR® 8-Bit Microcontroller Family
• Advanced RISC Architecture
– 131 Powerful Instructions
– Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
– Up to 20 MIPS Throughput at 20MHz
– On-chip 2-cycle Multiplier
• High Endurance Non-volatile Memory Segments
– 32KBytes of In-System Self-Programmable Flash program
Memory
– 1KBytes EEPROM
– 2KBytes Internal SRAM
– Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
– Data Retention: 20 years at 85°C/100 years at 25°C(1)
– Optional Boot Code Section with Independent Lock Bits
• In-System Programming by On-chip Boot Program
• True Read-While-Write Operation
– Programming Lock for Software Security
• Atmel® QTouch® Library Support
– Capacitive Touch Buttons, Sliders and Wheels
– QTouch and QMatrix® Acquisition
– Up to 64 sense channels
Atmel-42735A-ATmega328/P_Datasheet_Summary-06/2016
2. • Peripheral Features
– Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
– One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
– Real Time Counter with Separate Oscillator
– Six PWM Channels
– 8-channel 10-bit ADC in TQFP and QFN/MLF package
• Temperature Measurement
– 6-channel 10-bit ADC in PDIP Package
• Temperature Measurement
– Two Master/Slave SPI Serial Interface
– One Programmable Serial USART
– One Byte-oriented 2-wire Serial Interface (Philips I2C compatible)
– Programmable Watchdog Timer with Separate On-chip Oscillator
– One On-chip Analog Comparator
– Interrupt and Wake-up on Pin Change
• Special Microcontroller Features
– Power-on Reset and Programmable Brown-out Detection
– Internal Calibrated Oscillator
– External and Internal Interrupt Sources
– Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and
Extended Standby
• I/O and Packages
– 23 Programmable I/O Lines
– 28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-pad QFN/MLF
• Operating Voltage:
– 1.8 - 5.5V
• Temperature Range:
– -40°C to 105°C
• Speed Grade:
– 0 - 4MHz @ 1.8 - 5.5V
– 0 - 10MHz @ 2.7 - 5.5V
– 0 - 20MHz @ 4.5 - 5.5V
• Power Consumption at 1MHz, 1.8V, 25°C
– Active Mode: 0.2mA
– Power-down Mode: 0.1μA
– Power-save Mode: 0.75μA (Including 32kHz RTC)
Atmel ATmega328/P [DATASHEET]
Atmel-42735A-ATmega328/P_Datasheet_Summary-06/2016
2
4. 1. Description
The Atmel AVR® core combines a rich instruction set with 32 general purpose working registers. All the
32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers
to be accessed in a single instruction executed in one clock cycle. The resulting architecture is more code
efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers.
The ATmega328/P provides the following features: 32Kbytes of In-System Programmable Flash with
Read-While-Write capabilities, 1Kbytes EEPROM, 2Kbytes SRAM, 23 general purpose I/O lines, 32
general purpose working registers, Real Time Counter (RTC), three flexible Timer/Counters with compare
modes and PWM, 1 serial programmable USARTs , 1 byte-oriented 2-wire Serial Interface (I2C), a 6-
channel 10-bit ADC (8 channels in TQFP and QFN/MLF packages) , a programmable Watchdog Timer
with internal Oscillator, an SPI serial port, and six software selectable power saving modes. The Idle
mode stops the CPU while allowing the SRAM, Timer/Counters, SPI port, and interrupt system to
continue functioning. The Power-down mode saves the register contents but freezes the Oscillator,
disabling all other chip functions until the next interrupt or hardware reset. In Power-save mode, the
asynchronous timer continues to run, allowing the user to maintain a timer base while the rest of the
device is sleeping. The ADC Noise Reduction mode stops the CPU and all I/O modules except
asynchronous timer and ADC to minimize switching noise during ADC conversions. In Standby mode, the
crystal/resonator oscillator is running while the rest of the device is sleeping. This allows very fast start-up
combined with low power consumption. In Extended Standby mode, both the main oscillator and the
asynchronous timer continue to run.
Atmel offers the QTouch® library for embedding capacitive touch buttons, sliders and wheels functionality
into AVR microcontrollers. The patented charge-transfer signal acquisition offers robust sensing and
includes fully debounced reporting of touch keys and includes Adjacent Key Suppression® (AKS™)
technology for unambiguous detection of key events. The easy-to-use QTouch Suite toolchain allows you
to explore, develop and debug your own touch applications.
The device is manufactured using Atmel’s high density non-volatile memory technology. The On-chip ISP
Flash allows the program memory to be reprogrammed In-System through an SPI serial interface, by a
conventional nonvolatile memory programmer, or by an On-chip Boot program running on the AVR core.
The Boot program can use any interface to download the application program in the Application Flash
memory. Software in the Boot Flash section will continue to run while the Application Flash section is
updated, providing true Read-While-Write operation. By combining an 8-bit RISC CPU with In-System
Self-Programmable Flash on a monolithic chip, the Atmel ATmega328/P is a powerful microcontroller that
provides a highly flexible and cost effective solution to many embedded control applications.
The ATmega328/P is supported with a full suite of program and system development tools including: C
Compilers, Macro Assemblers, Program Debugger/Simulators, In-Circuit Emulators, and Evaluation kits.
Atmel ATmega328/P [DATASHEET]
Atmel-42735A-ATmega328/P_Datasheet_Summary-06/2016
4
5. 2. Configuration Summary
Features ATmega328/P
Pin Count 28/32
Flash (Bytes) 32K
SRAM (Bytes) 2K
EEPROM (Bytes) 1K
Interrupt Vector Size (instruction word/vector) 1/1/2
General Purpose I/O Lines 23
SPI 2
TWI (I2C) 1
USART 1
ADC 10-bit 15kSPS
ADC Channels 8
8-bit Timer/Counters 2
16-bit Timer/Counters 1
and support a real Read-While-Write Self-Programming mechanism. There is a separate Boot Loader
Section, and the SPM instruction can only execute from there. In , there is no Read-While-Write support
and no separate Boot Loader Section. The SPM instruction can execute from the entire Flash.
Atmel ATmega328/P [DATASHEET]
Atmel-42735A-ATmega328/P_Datasheet_Summary-06/2016
5
6. 3. Ordering Information
3.1. ATmega328
Speed [MHz](3) Power Supply [V] Ordering Code(2) Package(1) Operational Range
20 1.8 - 5.5
ATmega328-AU
ATmega328-AUR(5)
ATmega328-MMH(4)
ATmega328-MMHR(4)(5)
ATmega328-MU
ATmega328-MUR(5)
ATmega328-PU
32A
32A
28M1
28M1
32M1-A
32M1-A
28P3
Industrial
(-40°C to 85°C)
Note:
1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for
detailed ordering information and minimum quantities.
2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances
(RoHS directive). Also Halide free and fully Green.
3. Please refer to Speed Grades for Speed vs. VCC
4. Tape & Reel.
5. NiPdAu Lead Finish.
Package Type
28M1 28-pad, 4 x 4 x 1.0 body, Lead Pitch 0.45mm Quad Flat No-Lead/Micro Lead Frame Package (QFN/
MLF)
28P3 28-lead, 0.300” Wide, Plastic Dual Inline Package (PDIP)
32M1-A 32-pad, 5 x 5 x 1.0 body, Lead Pitch 0.50mm Quad Flat No-Lead/Micro Lead Frame Package (QFN/
MLF)
32A 32-lead, Thin (1.0mm) Plastic Quad Flat Package (TQFP)
Atmel ATmega328/P [DATASHEET]
Atmel-42735A-ATmega328/P_Datasheet_Summary-06/2016
6
7. 3.2. ATmega328P
Speed [MHz](3) Power Supply [V] Ordering Code(2) Package(1) Operational Range
20 1.8 - 5.5
ATmega328P-AU
ATmega328P-AUR(5)
ATmega328P-MMH(4)
ATmega328P-MMHR(4)(5)
ATmega328P-MU
ATmega328P-MUR(5)
ATmega328P-PU
32A
32A
28M1
28M1
32M1-A
32M1-A
28P3
Industrial
(-40°C to 85°C)
ATmega328P-AN
ATmega328P-ANR(5)
ATmega328P-MN
ATmega328P-MNR(5)
ATmega328P-PN
32A
32A
32M1-A
32M1-A
28P3
Industrial
(-40°C to 105°C)
Note:
1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for
detailed ordering information and minimum quantities.
2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances
(RoHS directive). Also Halide free and fully Green.
3. Please refer to Speed Grades for Speed vs. VCC
4. Tape & Reel.
5. NiPdAu Lead Finish.
Package Type
28M1 28-pad, 4 x 4 x 1.0 body, Lead Pitch 0.45mm Quad Flat No-Lead/Micro Lead Frame Package (QFN/
MLF)
28P3 28-lead, 0.300” Wide, Plastic Dual Inline Package (PDIP)
32M1-A 32-pad, 5 x 5 x 1.0 body, Lead Pitch 0.50mm Quad Flat No-Lead/Micro Lead Frame Package (QFN/
MLF)
32A 32-lead, Thin (1.0mm) Plastic Quad Flat Package (TQFP)
Atmel ATmega328/P [DATASHEET]
Atmel-42735A-ATmega328/P_Datasheet_Summary-06/2016
7
8. 4. Block Diagram
Figure 4-1. Block Diagram
CPU
USART 0
ADC
ADC[7:0]
AREF
RxD0
TxD0
XCK0
I/O
PORTS
D
A
T
A
B
U
S
GPIOR[2:0]
SRAM
OCD
EXTINT
FLASH
NVM
programming
debugWire
I
N
/
O
U
T
D
A
T
A
B
U
S
TC 0
(8-bit)
SPI 0
AC
AIN0
AIN1
ADCMUX
EEPROM
EEPROMIF
TC 1
(16-bit)
OC1A/B
T1
ICP1
TC 2
(8-bit async)
TWI 0 SDA0
SCL0
Internal
Reference
Watchdog
Timer
Power
management
and clock
control
VCC
GND
Clock generation
8MHz
Calib RC
128kHz int
osc
32.768kHz
XOSC
External
clock
Power
Supervision
POR/BOD &
RESET
XTAL2 /
TOSC2
RESET
XTAL1 /
TOSC1
16MHz LP
XOSC
PCINT[23:0]
INT[1:0]
T0
OC0A
OC0B
MISO0
MOSI0
SCK0
SS0
OC2A
OC2B
PB[7:0]
PC[6:0]
PD[7:0]
ADC6,ADC7,PC[5:0]
AREF
PD[7:0], PC[6:0], PB[7:0]
PD3, PD2
PB1, PB2
PD5
PB0
PB3
PD3
PD4
PD6
PD5
PB4
PB3
PB5
PB2
PD6
PD7
ADC6, ADC7
PC[5:0]
PD0
PD1
PD4
PC4
PC5
Atmel ATmega328/P [DATASHEET]
Atmel-42735A-ATmega328/P_Datasheet_Summary-06/2016
8
12. Figure 5-4. 32-pin MLF Top View
1
2
3
4 32
31
30
29
28
27
26
5
6
7
8
24
23
22
21
20
19
18
17
25
9
10
11
12
13
14
15
16
PD2(INT0/PCINT18)
PD1(TXD/PCINT17)
PD0(RXD/PCINT16)
PC6(RESET/PCINT14)
PC5(ADC5/SCL/PCINT13)
PC4(ADC4/SDA/PCINT12)
PC3(ADC3/PCINT11)
PC2(ADC2/PCINT10)
PC1 (ADC1/PCINT9)
PC0 (ADC0/PCINT8)
ADC7
GND
AREF
ADC6
AVCC
PB5 (SCK/PCINT5)
(PCINT21/OC0B/T1)PD5
(PCINT22/OC0A/AIN0)PD6
(PCINT23/AIN1)PD7
(PCINT0/CLKO/ICP1)PB0
(PCINT1/OC1A)PB1
(PCINT2/SS/OC1B)PB2
(PCINT3/OC2A/MOSI)PB3
(PCINT4/MISO)PB4
(PCINT19/OC2B/INT1) PD3
(PCINT20/XCK/T0) PD4
GND
VCC
GND
VCC
(PCINT6/XTAL1/TOSC1) PB6
(PCINT7/XTAL2/TOSC2) PB7
Bottom pad should be
soldered to ground
Power
Ground
Programming/debug
Digital
Analog
Crystal/CLK
5.2. Pin Descriptions
5.2.1. VCC
Digital supply voltage.
5.2.2. GND
Ground.
5.2.3. Port B (PB[7:0]) XTAL1/XTAL2/TOSC1/TOSC2
Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port B
output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs,
Port B pins that are externally pulled low will source current if the pull-up resistors are activated. The Port
B pins are tri-stated when a reset condition becomes active, even if the clock is not running.
Depending on the clock selection fuse settings, PB6 can be used as input to the inverting Oscillator
amplifier and input to the internal clock operating circuit.
Atmel ATmega328/P [DATASHEET]
Atmel-42735A-ATmega328/P_Datasheet_Summary-06/2016
12
13. Depending on the clock selection fuse settings, PB7 can be used as output from the inverting Oscillator
amplifier.
If the Internal Calibrated RC Oscillator is used as chip clock source, PB[7:6] is used as TOSC[2:1] input
for the Asynchronous Timer/Counter2 if the AS2 bit in ASSR is set.
5.2.4. Port C (PC[5:0])
Port C is a 7-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The PC[5:0]
output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs,
Port C pins that are externally pulled low will source current if the pull-up resistors are activated. The Port
C pins are tri-stated when a reset condition becomes active, even if the clock is not running.
5.2.5. PC6/RESET
If the RSTDISBL Fuse is programmed, PC6 is used as an I/O pin. Note that the electrical characteristics
of PC6 differ from those of the other pins of Port C.
If the RSTDISBL Fuse is unprogrammed, PC6 is used as a Reset input. A low level on this pin for longer
than the minimum pulse length will generate a Reset, even if the clock is not running. Shorter pulses are
not guaranteed to generate a Reset.
The various special features of Port C are elaborated in the Alternate Functions of Port C section.
5.2.6. Port D (PD[7:0])
Port D is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port D
output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs,
Port D pins that are externally pulled low will source current if the pull-up resistors are activated. The Port
D pins are tri-stated when a reset condition becomes active, even if the clock is not running.
5.2.7. AVCC
AVCC is the supply voltage pin for the A/D Converter, PC[3:0], and PE[3:2]. It should be externally
connected to VCC, even if the ADC is not used. If the ADC is used, it should be connected to VCC through
a low-pass filter. Note that PC[6:4] use digital supply voltage, VCC.
5.2.8. AREF
AREF is the analog reference pin for the A/D Converter.
5.2.9. ADC[7:6] (TQFP and VFQFN Package Only)
In the TQFP and VFQFN package, ADC[7:6] serve as analog inputs to the A/D converter. These pins are
powered from the analog supply and serve as 10-bit ADC channels.
Atmel ATmega328/P [DATASHEET]
Atmel-42735A-ATmega328/P_Datasheet_Summary-06/2016
13
14. 6. I/O Multiplexing
Each pin is by default controlled by the PORT as a general purpose I/O and alternatively it can be
assigned to one of the peripheral functions.
The following table describes the peripheral signals multiplexed to the PORT I/O pins.
Table 6-1. PORT Function Multiplexing
(32-pin
MLF/TQFP)
Pin#
(28-pin
MLF) Pin#
(28-pin
PIPD) Pin#
PAD EXTINT PCINT ADC/AC OSC T/C #0 T/C
#1
USART 0 I2C 0 SPI 0
1 1 5 PD[3] INT1 PCINT19 OC2B
2 2 6 PD[4] PCINT20 T0 XCK0
3 3 7 VCC
4 4 8 GND
5 - - VCC
6 - - GND
7 5 9 PB[6] PCINT6 XTAL1/
TOSC1
8 6 10 PB[7] PCINT7 XTAL2/
TOSC2
9 7 11 PD[5] PCINT21 OC0B T1
10 8 12 PD[6] PCINT22 AIN0 OC0A
11 9 13 PD[7] PCINT23 AIN1
12 10 14 PB[0] PCINT0 CLKO ICP1
13 11 15 PB[1] PCINT1 OC1A
14 12 16 PB[2] PCINT2 OC1B SS0
15 13 17 PB[3] PCINT3 OC2A MOSI0
16 14 18 PB[4] PCINT4 MISO0
17 15 19 PB[5] PCINT5 SCK0
18 16 20 AVCC
19 - - ADC6 ADC6
20 17 21 AREF
21 18 22 GND
22 - - ADC7 ADC7
23 19 13 PC[0] PCINT8 ADC0
24 20 24 PC[1] PCINT9 ADC1
25 21 25 PC[2] PCINT10 ADC2
26 22 26 PC[3] PCINT11 ADC3
27 23 27 PC[4] PCINT12 ADC4 SDA0
28 24 28 PC[5] PCINT13 ADC5 SCL0
29 25 1 PC[6]/
RESET
PCINT14
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16. 7. Resources
A comprehensive set of development tools, application notes, and datasheets are available for download
on http://www.atmel.com/avr.
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17. 8. Data Retention
Reliability Qualification results show that the projected data retention failure rate is much less than 1 PPM
over 20 years at 85°C or 100 years at 25°C.
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18. 9. About Code Examples
This documentation contains simple code examples that briefly show how to use various parts of the
device. These code examples assume that the part specific header file is included before compilation. Be
aware that not all C compiler vendors include bit definitions in the header files and interrupt handling in C
is compiler dependent. Confirm with the C compiler documentation for more details.
For I/O Registers located in extended I/O map, “IN”, “OUT”, “SBIS”, “SBIC”, “CBI”, and “SBI” instructions
must be replaced with instructions that allow access to extended I/O. Typically “LDS” and “STS”
combined with “SBRS”, “SBRC”, “SBR”, and “CBR”.
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19. 10. Capacitive Touch Sensing
10.1. QTouch Library
The Atmel
®
QTouch
®
Library provides a simple to use solution to realize touch sensitive interfaces on
most Atmel AVR
®
microcontrollers. The QTouch Library includes support for the Atmel QTouch and Atmel
QMatrix
®
acquisition methods.
Touch sensing can be added to any application by linking the appropriate Atmel QTouch Library for the
AVR Microcontroller. This is done by using a simple set of APIs to define the touch channels and sensors,
and then calling the touch sensing API’s to retrieve the channel information and determine the touch
sensor states.
The QTouch Library is FREE and downloadable from the Atmel website at the following location: http://
www.atmel.com/technologies/touch/. For implementation details and other information, refer to the Atmel
QTouch Library User Guide - also available for download from the Atmel website.
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20. 11. Packaging Information
11.1. 32-pin 32A
TITLE DRAWING NO. REV.
32A,32-lead, 7 x 7mm body size, 1.0mm body thickness,
0.8mm lead pitch, thin profile plastic quad flat package (TQFP)
C32A
2010-10-20
PIN 1 IDENTIFIER
0°~7°
PIN 1
L
C
A1 A2 A
D1
D
e
E1 E
B
Notes:
1. This package conforms to JEDEC reference MS-026, Variation ABA.
2. Dimensions D1 and E1 do not include mold protrusion. Allowable
protrusion is 0.25mm per side. Dimensions D1 and E1 are maximum
plastic body size dimensions including mold mismatch.
3. Lead coplanarity is 0.10mm maximum.
A – – 1.20
A1 0.05 – 0.15
A2 0.95 1.00 1.05
D 8.75 9.00 9.25
D1 6.90 7.00 7.10 Note 2
E 8.75 9.00 9.25
E1 6.90 7.00 7.10 Note 2
B 0.30 – 0.45
C 0.09 – 0.20
L 0.45 – 0.75
e 0.80 TYP
COMMON DIMENSIONS
(Unit of measure = mm)
SYMBOL MIN NOM MAX NOTE
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21. 11.2. 32-pin 32M1-A
COMMON DIMENSIONS
(Unit of Measure = mm)
SYMBOL MIN NOM MAX NOTE
D1
D
E1 E
eb
A3
A2
A1
A
D2
E2
0.08 C
L
1
2
3
P
P
0
1
2
3
A 0.80 0.90 1.00
A1 – 0.02 0.05
A2 – 0.65 1.00
A3 0.20 REF
b 0.18 0.23 0.30
D
D1
D2 2.95 3.10 3.25
4.90 5.00 5.10
4.70 4.75 4.80
4.70 4.75 4.80
4.90 5.00 5.10
E
E1
E2 2.95 3.10 3.25
e 0.50 BSC
L 0.30 0.40 0.50
P – – 0.60
– – 12
o
Note : JEDEC Standard MO-220, Fig . 2 (Anvil Singulation), VHHD-2 .
TOP VIEW
SIDE VIEW
BOTTOM VIEW
0
Pin 1 ID
Pin #1 Notch
(0.20 R)
K 0.20 – –
K
K
32M1-A , 32-pad, 5 x 5 x 1.0mm Bod y, Lead Pitch 0.50mm ,
3.10mm Exposed Pad, Micro Lead Frame Pa ckage (MLF) 32M1-A
03/14/2014
F
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22. 11.3. 28-pin 28M1
TITLE DRAWINGNO.GPC REV.
Package Drawing Contact:
packagedrawings@atmel.com 28M1ZBV B
28M1,28-pad,4x4x1.0mm Body, Lead Pitch 0.45mm,
2.4 x 2.4mm Exposed Pad, Thermally Enhanced
Plastic VeryThin Quad Flat No Lead Package (VQFN)
10/24/08
SIDEVIEW
Pin 1 ID
BOTTOMVIEW
TOPVIEW
Note: The ter mi nal #1 ID is a Laser -ma rked Feat ur e .
D
E
e
K
A1
C
A
D2
E2
y
L
1
2
3
b
1
2
3
0.45 COMMONDIMENSIONS
(Unit of Measure = mm)
SYMBOL MIN NOM MAX NOTER0.20
0.4 Ref
(4x)
A
A1
b
C
D
D2
E
E2
e
L
y
K
0.80 0.90 1.00
0.00 0.02 0.05
0.17 0.22 0.27
0.20 REF
3.95 4.00 4.05
2.35 2.40 2.45
3.95 4.00 4.05
2.35 2.40 2.45
0.45
0.35 0.40 0.45
0.00 – 0.08
0.20 – –
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23. 11.4. 28-pin 28P3
2325 Orchard Parkway
San Jose, CA 95131
TITLE DRAWING NO. REV.
28P3, 28-lead (0.300"/7.62mm Wide) Plastic Dual
Inline Package (PDIP)
B28P3
09/28/01
PIN
1
E1
A1
B
REF
E
B1
C
L
SEATING PLANE
A
0º ~ 15º
D
e
eB
B2
(4 PLACES)
COMMON DIMENSIONS
(Unit of Measure = mm)
SYMBOL MIN NOM MAX NOTE
A – – 4.5724
A1 0.508 – –
D 34.544 – 34.798 Note 1
E 7.620 – 8.255
E1 7.112 – 7.493 Note 1
B 0.381 – 0.533
B1 1.143 – 1.397
B2 0.762 – 1.143
L 3.175 – 3.429
C 0.203 – 0.356
eB – – 10.160
e 2.540 TYP
Note: 1. Dimensions D and E1 do not include mold Flash or Protrusion.
Mold Flash or Protrusion shall not exceed 0.25mm (0.010").
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