INTRODUCTION:
A PICmicrocontroller is a family of microcontrollers made by
Microchip Technology. The term PIC originally stood for
“Peripheral Interface Controller”, though it is now simply
known as PIC.
🔹 Definition:
A PIC microcontroller is a small computer on a single integrated
circuit (IC) that contains a processor (CPU), memory (program and
data), and input/output peripherals, designed for use in embedded
systems and control applications.
cont…
Peripheral InterfaceControllers (PIC) is a family of
microcontrollers from microchip Technologies.
Pic microcontrollers have attractive features and they are suitable
for a wide range of applications.
PIC microcontrollers have RISC controllers.
These are HARVARD ARCHITECTURE based micro-controllers
The data memory of PIC is 8-bit wide, whereas the program
memory of PIC is 12-bit,14-bit,or 16-bit wide.
The PIC instruction set contains only 35 instructions>
The PIC execute most of instructions within 0.2 microsecond,
when it was operates at its maximum clock frequency.
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All mostall PIC instructions have the same instruction format.
PIC controllers have in-built power-on-reset and Brown-out-reset
features.
PIC has a fully static design.it allows selecting any frequency
from minimum to maximum in the specified operating range of
frequencies.
It supports a power saving SLLEP mode.
A watchdog timer prevents the processor from endless loop
hanging condition.
The operating voltage range is 3 to 6 volts.
APPLICATIONS:
•Robotics: Used inHome Appliances: Used in microwave ovens, washing
machines, air conditioners, and refrigerators for control operations.
•robot controllers, automated machines, and drones for movement and
sensor control.
•Industrial Automation: Controls conveyor belts, motor drives, process
automation, and PLCs.
•Consumer Electronics: Found in remote controls, toys, calculators, and
digital cameras.
•Medical Devices: Used in heart rate monitors, glucometers, and portable
diagnostic equipment.
•Communication Systems: Controls modems, data acquisition systems,
and wirelessAutomotive Systems.
8.
ADVANTAGES&LIMITATIONS:
Advantages ofPIC Microcontroller
Low Cost: Economical and widely available.
Compact Size: Integrates CPU, memory, and peripherals on a
single chip.
High Speed: RISC architecture allows fast instruction execution.
Low Power Consumption: Suitable for battery-operated
devices.
Flexible Peripherals: Built-in timers, ADC/DAC, PWM, UART,
SPI, I²C, etc.
9.
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Limitations ofPIC Microcontroller
Limited Memory: On-chip RAM and ROM are small compared to
modern microprocessors.
Limited Processing Power: Not suitable for high-end computing
tasks.
Peripheral Variations: Different PIC models have different
features, requiring careful selection.
Learning Curve: Beginners may find assembly language
programming challenging.
No Built-in OS: Cannot run complex operating systems like
Windows/Linux.