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ATmega328P

ATmega328P

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 ATmega328P 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. This is the picoPower version of the standard ATmega328 version which alows it to operate under lower voltage and power requirements, as low as 1.62V. The microcontroller came into public notability when it was selected to be the microcontroller of choice in the Arduino single-board microcontroller.

Models[edit]

The ATMEGA328P-PU - The ATmega 328 in a 28-pin plastic dual-in-line package.
Model Code Package Terminal Count
ATMEGA328P-AU TQFP 32
ATMEGA328P-AUR TQFP 32
ATMEGA328P-AN TQFP 32
ATMEGA328P-MU MLF 32
ATMEGA328-MUR MLF 32
ATMEGA328P-MMH VQFN 28
ATMEGA328P-PU PDIP 28
ATMEGA328P-PN PDIP 28