ATmega328P

The chip an Arduino Uno is built around, in the 28-pin package you can lift out of the socket and run on a breadboard. Every lead carries its port pin, its Arduino number and its function: pin 28 reads PC5/A5/SCL.

Made by
Microchip
Kind
Parametric part
Licence
CC-BY-SA-4.0
Keywords
atmega328p, atmega328, 328p, avr, microcontroller, mcu, arduino, uno, nano, 28-pin, dip, chip, breadboard
Overall size (X × Y × Z)35.6 × 7.9 × 7 mm
Volume775 mm³
Typemicrocontroller
ChipATmega328P
Clock speed20 MHz
Flash32 KB
RAM2 KB SRAM
GPIO pins23
InterfaceUART, SPI, I2C
Logic level1.8-5.5 V
Resolution10 bit
PackageDIP-28

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