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ATMEGA328P-PU

Microchip TechnologyExtended

-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH DIP-28-300mil Microcontrollers (MCU/MPU/SOC) ROHS

Part id
microchip/ATMEGA328P-PU
Category
Microcontrollers (MCU, MPU, SOC)
Package
DIP-28-300mil
Pins
28
In stock
611 at JLCPCB (C33901)
Used on
533 open-source boards

Overview

The ATMEGA328P-PU is a microcontroller made by Microchip Technology in a DIP-28-300mil package with 28 pins. -40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH DIP-28-300mil Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (MCU_Microchip_ATmega:ATmega328P-P, from KiCad's library) and its footprint (Package_DIP:DIP-28_W7.62mm, from KiCad's library), ready for a KiCad board. 611 are in stock at JLCPCB (part C33901). 533 open-source boards in 410 repositories on GitHub use it.

Symbol

RESET/PC61PD02PD13PD24PD35PD46VCC7GND8XTAL1/PB69XTAL2/PB710PD511PD612PD713PB014PB115PB216PB317PB418PB519AVCC20AREF21PC023PC124PC225PC326PC427PC528
MCU_Microchip_ATmega:ATmega328P-PFrom KiCad's library

Footprint

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Package_DIP:DIP-28_W7.62mmFrom KiCad's library

From the datasheet

4
Supply, least
1.8 V · VCC, recommended operating, min · p. 2
Supply, most
5.5 V · VCC, recommended operating, max · p. 2
Works from
-40 °C · operating temperature, min · p. 2
Works up to
85 °C · operating temperature, max · p. 2

Pinout

28
The pins of the ATMEGA328P-PU
PinNameType
1RESET/PC6Input/output
2PD0Input/output
3PD1Input/output
4PD2Input/output
5PD3Input/output
6PD4Input/output
7VCCPower in
8GNDPower in
9XTAL1/PB6Input/output
10XTAL2/PB7Input/output
11PD5Input/output
12PD6Input/output
13PD7Input/output
14PB0Input/output
15PB1Input/output
16PB2Input/output
17PB3Input/output
18PB4Input/output
19PB5Input/output
20AVCCPower in
21AREFPassive
22GNDPassive
23PC0Input/output
24PC1Input/output
25PC2Input/output
26PC3Input/output
27PC4Input/output
28PC5Input/output

Open-source boards using it

533See all 533
  • 2 layers68.8 × 53.6 mmZArduino, the printed circuit board in 3D

    ZArduino

    zmaker/arduino_cookbook

    gli sketch del nuovo progetto Arduino Cookbook e dei video di YouTube

    46 parts269
  • 2 layers76.3 × 122.8 mmDiscipad pcb, the printed circuit board in 3D

    Discipad pcb

    coseyfannitutti/discipad

    17-key numpad assembled with only through hole components, including usb type-c

    63 parts221GPL-3.0
  • 2 layers111.3 × 106.4 mmSuper Sixteen v1, the printed circuit board in 3D

    Super Sixteen v1

    matthewcieplak/super-sixteen

    Code and schematics for the Super Sixteen Eurorack sequencer

    141 parts171
  • 2 layers247.6 × 99.2 mmRomeo pcb, the printed circuit board in 3D

    Romeo pcb

    coseyfannitutti/romeo

    Staggered 40% keyboard pcb that can be assembled with only through hole components, including USB Type-C

    138 parts148GPL-3.0
  • 2 layers90 × 140 mmDrumkid, the printed circuit board in 3D

    Drumkid

    mattybrad/drumkid

    Version 4 was the first successful working design, with full code, schematics, Gerbers, etc available on GitHub.

    70 parts137
  • 2 layers238.1 × 375.5 mmFramework, the printed circuit board in 3D

    Framework

    stevennguyen/framework

    Ortholinear keyboard with a knob

    197 parts131
  • 2 layersLM80C R6, the printed circuit board in 3D

    LM80C R6

    leomil72/LM80C

    A Z80-based homebrew computer withTMS9918, AY-3-8910, Z80 CTC, Z80 PIO, and Z80 SIO

    153 parts123GPL-3.0
  • 2 layers145.3 × 44.5 mmScout, the printed circuit board in 3D

    Scout

    oskitone/scout

    3D-printed, Arduino-compatible, 17-key mono synth. Squeeeee!

    48 parts114

Parts like it

8

Questions

Is there a KiCad symbol and footprint for the ATMEGA328P-PU?

Yes. The symbol is MCU_Microchip_ATmega:ATmega328P-P and the footprint Package_DIP:DIP-28_W7.62mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the ATMEGA328P-PU?

DIP-28-300mil, with 28 pins. Its footprint is drawn on this page.

Where is the ATMEGA328P-PU datasheet?

Microchip Technology publishes it: the Datasheet link on this page opens it.

Where can I order the ATMEGA328P-PU?

JLCPCB lists it as part C33901, with 611 in stock; the sellers' links on this page open their listings.

What can replace the ATMEGA328P-PU?

Parts like it in the library: the PIC16F72-I/SP by Microchip Technology, the PIC16F883-I/SP by Microchip Technology, the PIC16F873A-I/SP by Microchip Technology and the PIC16F886-I/SP by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the ATMEGA328P-PU?

533 boards in 410 repositories on GitHub; the most starred are listed on this page, with their KiCad files.