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ATMEGA32U2-MU on a board, in 3D

ATMEGA32U2-MU

Microchip Technology

-40℃~+85℃ 16MHz 1KB 1KB 2.7V~5.5V 22 32KB 8 Bit AVR Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、External pin reset (NRST)、Built-in general-purpose timer VQFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHS

Extended
DatasheetJLCPCBLCSCmicrochip/ATMEGA32U2-MU
Category
Microcontrollers (MCU, MPU, SOC)
Package
VQFN-32-EP(5x5)
Pins
33

Overview

The ATMEGA32U2-MU is a microcontroller made by Microchip Technology in a VQFN-32-EP(5x5) package with 33 pins. -40℃~+85℃ 16MHz 1KB 1KB 2.7V~5.5V 22 32KB 8 Bit AVR Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、External pin reset (NRST)、Built-in general-purpose timer VQFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (MCU_Microchip_ATmega:ATmega32U2-M, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm, from KiCad's library), ready for a KiCad board. 55 are in stock at JLCPCB (part C1337625). 12 open-source boards in 10 repositories on GitHub use it.

Symbol

XTAL11PC0/XTAL22GND3VCC4PC25PD06PD17PD28PD39PD410PD511PD612HWB/PD713PB014PB115PB216PB317PB418PB519PB620PB721PC722PC623PC1/RESET24PC525PC426UCAP27UGND28D+29D-30UVCC31AVCC32
MCU_Microchip_ATmega:ATmega32U2-MFrom KiCad's library

Footprint

33
Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mmFrom KiCad's library

Parameters

12
CPU Core
AVR
CPU Maximum Speed
16MHz
Core Size
8 Bit
EEPROM
1KB
Features
Built-in general-purpose timer
Number of I/O
22
Operating Temperature
-40℃~+85℃
Oscillator Type
Built-in
Program Memory Type
FLASH
Program Storage Size
32KB
RAM Size
1KB
Voltage - Supply
2.7V~5.5V

Order codes

2

Pinout

33
The pins of the ATMEGA32U2-MU
PinNameType
1XTAL1Input
2PC0/XTAL2Input/output
3GNDPower in
4VCCPower in
5PC2Input/output
6PD0Input/output
7PD1Input/output
8PD2Input/output
9PD3Input/output
10PD4Input/output
11PD5Input/output
12PD6Input/output
13HWB/PD7Input/output
14PB0Input/output
15PB1Input/output
16PB2Input/output
17PB3Input/output
18PB4Input/output
19PB5Input/output
20PB6Input/output
21PB7Input/output
22PC7Input/output
23PC6Input/output
24PC1/RESETInput/output
25PC5Input/output
26PC4Input/output
27UCAPPassive
28UGNDPower in
29D+Input/output
30D-Input/output
31UVCCPower in
32AVCCPower in
33GNDPassive

Open-source boards using it

All 12
  • 2 layers216 × 70.8 mmChoc40, the printed circuit board in 3D

    Choc40

    rainkeebs/Choc40

    40% Low profile keyboard designed for Kailh 'Choc' v1 switches and MBK Extended keycaps.

    98 parts15Unlicense
  • 2 layers68.3 × 49.2 mmMacro kb, the printed circuit board in 3D

    Macro kb

    joaofbmaia/6macro

    6macro keyboard PCB

    53 parts1
  • 2 layers44.5 × 46.9 mmAku keypad, the printed circuit board in 3D

    Aku keypad

    akukerang/keypad-osu

    Practice keypad pcb for Osu.

    23 parts
  • 2 layers81.9 × 126.7 mmKiPad, the printed circuit board in 3D

    KiPad

    awkwardbunny/KiPad

    Custom PCB + 3D printed keycaps and case.

    84 parts
  • 2 layers38.1 × 25.4 mmBinarykb, the printed circuit board in 3D

    Binarykb

    bennettzug/binarykb

    simple 2 key macropad with USB-C connector and hotswappable switches

    18 partsMIT
  • 2 layers25 × 45 mmOmegaFloppy, the printed circuit board in 3D

    OmegaFloppy

    fastjack/OmegaFloppy

    The last floppy adapter you'll ever need

    27 partsCERN-OHL-P-2.0
  • 2 layers19.1 × 23.3 mmWhy, the printed circuit board in 3D

    Why

    lfgberg/why-PCB

    PCB for the 1key gasket mounted why macropad

    20 parts
  • 2 layers261.9 × 77.3 mmPCB design try, the printed circuit board in 3D

    PCB design try

    rocket-bus/PCB_design_try

    PCB_design_try

    117 partsMIT

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Questions

Is there a KiCad symbol and footprint for the ATMEGA32U2-MU?

Yes. The symbol is MCU_Microchip_ATmega:ATmega32U2-M and the footprint Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the ATMEGA32U2-MU?

VQFN-32-EP(5x5), with 33 pins. Its footprint is drawn on this page.

Where is the ATMEGA32U2-MU datasheet?

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

Where can I order the ATMEGA32U2-MU?

JLCPCB lists it as part C1337625, with 55 in stock; the sellers' links on this page open their listings.

What can replace the ATMEGA32U2-MU?

Parts like it in the library: the ATMEGA328P-MUR by Microchip Technology, the ATMEGA88PA-MU by Microchip Technology, the ATMEGA168PA-MU by Microchip Technology and the ATMEGA328PB-MN by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the ATMEGA32U2-MU?

12 boards in 10 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8