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ATmega328 - CMOS 8-bit microcontroller

This page provides the datasheet information for the ATmega328, a member of the ATmega48A CMOS 8-bit microcontroller family.

Datasheet Summary

Description

13 2 Overview 15 2.1 Block Diagram 15 2.2 Comparison Between Processors 16 3 Resources 17 4 Data Retention 17 5 About Code Examples 17 6 Capacitive Touch Sensing 17 7 AVR CPU Core 18 7.1 Overview 18 7.2 ALU Arithmetic Logic Unit 19 7.3 Status Register 19 7.4 General Purpose Regis

Features

  • High Performance, Low Power 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 ̶ 4/8/16/32KBytes of In-System Self-Programmable Flash program memory ̶ 256/512/512/1KBytes EEPROM ̶ 512/1K/1K/2KBytes Internal SRAM ̶ Write/Era.

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Datasheet preview – ATmega328

Datasheet Details

Part number ATmega328
Manufacturer Microchip
File Size 31.78 MB
Description CMOS 8-bit microcontroller
Datasheet download datasheet ATmega328 Datasheet
Additional preview pages of the ATmega328 datasheet.

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Full PDF Text Transcription

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ATmega48A/PA/88A/PA/168A/PA/328/P megaAVR® Data Sheet Introduction The ATmega48A/PA/88A/PA/168A/PA/328/P is a low power, CMOS 8-bit microcontrollers based on the AVR® enhanced RISC architecture. By executing instructions in a single clock cycle, the devices achieve CPU throughput approaching one million instructions per second (MIPS) per megahertz, allowing the system designer to optimize power consumption versus processing speed.
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