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8-bit AVR Microcontrollers
ATmega328/P
DATASHEET COMPLETE
Introduction
The Atmel
®
picoPower
®
ATmega328/P is a low-power CMOS 8-bit
microcontroller based on the AVR
®
enhanced RISC architecture. By
executing powerful instructions in a single clock cycle, the ATmega328/P
achieves throughputs close to 1MIPS per MHz. This empowers system
designer to optimize the device for power consumption versus processing
speed.
Feature
High Performance, Low Power Atmel
®
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
32KBytes of In-System Self-Programmable Flash program
Memory
1KBytes EEPROM
2KBytes Internal SRAM
Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
Data Retention: 20 years at 85°C/100 years at 25°C
(1)
Optional Boot Code Section with Independent Lock Bits
In-System Programming by On-chip Boot Program
True Read-While-Write Operation
Programming Lock for Software Security
Atmel
®
QTouch
®
Library Support
Capacitive Touch Buttons, Sliders and Wheels
QTouch and QMatrix
®
Acquisition
Up to 64 sense channels
Atmel-42735B-ATmega328/P_Datasheet_Complete-11/2016

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