Microcontroller is a small computer which is designed to carry out the embedded system operations in motor vehicles , vending machines , mobile radio transceiver etc. Processor , memory and programmable input/output peripherals are the parts of the microcontroller. Features of microcontroller are : Cost of microcontroller is less. Availability of large amount of ROM and RAM . Number of input /output port and timers are maximum. Process of upgrading is simple. It includes software development tools likes compiler , debuggers , emulator , simulator etc .

1. WWW.GLOBALWEBTUTORS.COM
Globalwebtutors.com is an online tutors Platform Which has following Services.
• HOMEWORK HELP
• DISSERTATION EDITING
• ASSIGNMENT HELP
• QUESTION HELP
Send Requirement at Support@globalwebtutors.comor connect to us on Live chat instant
anytime.

2. MICROCONTROLLER

3. MICROCONTROLLER
 Microcontroller is a small computer which is designed to carry out the embedded
system operations in motor vehicles , vending machines , mobile radio transceiver
etc.
 Processor , memory and programmable input/output peripherals are the parts of
the microcontroller.
 Microcontrollers are "embedded" inside some other device (often a consumer
product) so that they can control the features or actions of the product. Another
name for a microcontroller, therefore, is "embedded controller.
 A microcontroller is often small and low cost. The components are chosen to
minimize size and to be as inexpensive as possible.

4. BLOCK DIAGRAM OF MICROCONTROLLER

5. APPLICATION OF
MICROCONTROLLER
 Light sensing and controlling devices like LED.
 Temperature sensing and controlling devices like microwave oven, chimneys.
 Fire detection and safety devices like Fire alarm.
 Measuring devices like Volt Meter.
 Mobile Phones
 Auto Mobiles
 Washing Machines
 Cameras
 Security Alarms

6. TYPES OF MICROCONTROLLER

7. MICROCONTROLLER 8051
 It is a 40pin microcontroller with Vcc of 5V connected to pin 40 and Vss at pin 20 which is
kept 0V.
 There are input and output ports from P1.0 – P1.7 and which having open drain feature.
 Port3 has got extra features.
 Pin36 has open drain condition and pin17 has internally pulled up transistor inside the
microcontroller.
 When we apply logic 1 at port1 then we get logic 1 at port21 and vice versa. The
programming of microcontroller is dead.
 A RESET pin is connected to pin9, connected with a capacitor.
 When the switch is ON, the capacitor starts charging and RST is high. Applying a high to
the reset pin resets the microcontroller.

8. ARCHITECTURE OF 8051

9. RENESAS MICROCONTROLLER
 Renesas is latest automotive microcontroller
family that offers high performance feature with
exceptionally low power consumption over a wide
and versatile extend of items.
 This microcontroller offers rich functional
security and embedded safety characteristics
required for new and advanced automotive
applications
 . The core structure of microcontroller CPU
support high reliability and high performance
requirements.
 The Renesas microcontroller offering low power,
high performance, modest packages and the
largest range of memory sizes combined together
with characteristics rich peripherals.

10. AVR MICROCONTROLLERS
 AVR microcontroller is developed
by Alf-Egil Bogen and Vegard
Wollan from Atmel Corporation.
 The AVR microcontrollers are
modified harvard RISC
architecture with separate
memories for data and program
and speed of AVR is high when
compare to 8051 and PIC.
 The AVR is stands for Alf-Egil
Bogen and Vegard Wollan’s RISC
processor.

11. PIC MICROCONTROLLER
 PIC is a peripheral interface controller,
developed by general instrument’s
microelectronics, in the year of 1993.
 It is controlled by the software. They
could be programmed to complete many
task and control a generation line and
many more.
 PIC microcontrollers are finding their
way into new applications like smart
phones, audio accessories, video gaming
peripherals and advanced medical
devices.
 There are many PICs, started with
PIC16F84 and PIC16C84. But these were
the only affordable flash PICs.

12. FOR MORE INFORMATIONYOU CAN GO A LINK:
http://www.globalwebtutors.com/micro-controller-assignment-help