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ATmega328
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ATmega328

Developer Atmel

Operating voltage 1.8V to 5.5V

Max Operating
frequency
20 MHz

Temp. range -40°C to 85°C
CPUs
Data bus
width
8-bit

Core AVR

FPU No

Pins
Pin count 32

Max I/O Pins 23
Memory
Flash 32KB

SRAM 2KB

EEPROM 1024B
Packaging
Package PDIP-28, VQFN-28, QFN-32, TQFP-32, MLF-32

Mounting SMD/SMT, Through Hole

The ATmega328 is an 8-bit, 32KB Flash, microcontroller, part of the megaAVR MCUs series, developed by Atmel. The microcontroller provides a delicate balance between performance and balance.

The ATmega328P is a picoPower microcontroller version of the ATmega328.

Models[edit]

Model Code Package Terminal Count
ATMEGA328-AU TQFP 32
ATMEGA328-AUR TQFP 32
ATMEGA328-MU MLF 32
ATMEGA328-MUR MLF 32
ATMEGA328-PU PDIP 28