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Chapter 01
Page 4
Features of Atmega328P Microcontroller(μC) in SIMPLE words
( A very much diluted version, for the new users )
Atmega328P
- It is a 8-Bit Microcontroller
- It can execute maximum 20 Million Instructions Per Second (MIPS) if
operated at 20MHz. If you connect it to a crystal of 16MHz maximum 16MIPS Throughput
can be achieved.
- It has a Flash program Memory of 32KBytes: Usually the programs are saved here.
The life of the memory is sufficient enough, the programs can be written /erased/re-written about 10,000 times before this memory fails.
- In-System Self-Programmable: To transfer a new program it usually not required to remove the μC from the application circuit. Also it can contain a Bootloader so that new program can be loaded easily.
- It contains 1KBytes EEPROM, which can be written/erased/re-written 100,000 EEPROM
- It also contains 2 Kilo Bytes Internal SRAM to store variables like arrays etc.
- The Program and data stored in the μC remains saved for about (Data retention) 20 years if the μC is stored at 85 degree C and for 100 years if μC is stored at 25 degree C
- Programming Lock for Software Security
- Atmel QTouch library support: To attach input devices like touch buttons, sliders and wheels
- It has multiple inbuilt Timers and/or event Counter(s) sub-circuits
- Six PWM (Pulse Width Modulation) Channels which can generate different square waves. The square wave can be used to control the speed of DC motors, or light intensity of a glowing LED. Some additional circuitry may be required.
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