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Details for Microchip Technology


20 MHz 105C Green QFN
Buy Directly from Microchip Technology (4991 in Stock)
$1.6100 per unit
Series Information for ATMEGA328P-MN - Microchip Technology


  • feature
    Advanced RISC Architecture -- 131 Powerful Instructions u2013 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
  • feature
    Atmelu00ae QTouchu00ae library support -- Capacitive touch buttons, sliders and wheels -- QTouch and QMatrixu00ae acquisition -- Up to 64 sense channels
  • feature
    High Endurance Non-volatile Memory Segments -- 4/8/16/32KBytes of In-System Self-Programmable Flash program memory -- 256/512/512/1KBytes EEPROM -- 512/1K/1K/2KBytes Internal SRAM -- Write/Erase Cycles: 10,000 Flash/100,000 EEPROM -- Data retention: 20 years at 85uf0b0C/100 years at 25uf0b0C(1) -- Optional Boot Code Section with Independent Lock Bits
  • feature
    In-System Programming by On-chip Boot Program
  • feature
    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
  • feature
    Temperature Measurement
  • feature
    Temperature Measurement -- 6-channel 10-bit ADC in PDIP Package
  • feature
    True Read-While-Write Operation -- Programming Lock for Software Security



Alternate Descriptions

Avnet America

MCU 8-bit ATmega AVR RISC 32KB Flash 2.5V/3.3V/5V 32-Pin MLF EP

Avnet America product

Microchip Technology Inc

20 MHz 105C Green QFN

Avnet Europe

MCU 8-bit ATmega AVR RISC 32KB Flash 2.5V/3.3V/5V 32-Pin MLF EP

Avnet Europe product

Future Electronics


Engineer Comments

In many a business, one product defines a legacy - for PSC Tupolev, this would be the legendary TU134. In the case of Atmel - initially a small European microcontroller company claiming to offer a C-programmable microcontroller, this honor falls to the ATmega328.

Describing the ATmega328 is not easy - it is, in the end, but another microcontroller similar to the various members of the PIC family. An amusing detail is that Atmel is now owned by Microchip - sometimes, fate takes the oldest turns.

Nevertheless, the ATmega328 is a highly interesting microcontroller due to another twist of history. When Massimo Banzi, Godfather of Arduino, looked for a microcontroller he settled on the ATmega328.

This means that developers can look forward to an almost unlimited amount of libraries - if you must get started quickly, this is a part to use for rapid prototyping. Of course, it also is available in prototype friendly DIP housing, make it ideally suited for Internet of Things prototype microcontroller duties.