# ATMEGA32U4 (Component)

## Description

MCU\-ATMEGA32U4\-AU TQFP44\. Seeed SKU 310010010
Microcontroller 

## Component Details

- **Owner:** openpartlist
- **Created:** 10/4/2026
- **Last Updated:** 10/4/2026
- **Visibility:** Public
- **Package or Case Code:** TQFP44\-0\.8\-9\.6X9\.6MM
- **Part Type:** Microcontroller
- **Manufacturer Part Number:** ATMEGA32U4
- **Manufacturer Name:** Seeed

- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Seeed
- **MPN:** ATMEGA32U4
- **Package / Case Code:** 44\-TQFP
- **Pin Count:** 44
- **Logic Function:** AND
## Pins

| Pin | Name | Type |
|-----|------|------|
| 1 | PE6\(INT\.6/AIN0\) | Bi\-Directional |
| 2 | UVCC | Bi\-Directional |
| 3 | D\- | Bi\-Directional |
| 4 | D\+ | Bi\-Directional |
| 5 | UGND | Bi\-Directional |
| 6 | UCAP | Bi\-Directional |
| 7 | VBUS | Bi\-Directional |
| 8 | PB0\(SS/PCINT0\) | Bi\-Directional |
| 9 | PB1\(PCINT1/SCLK\) | Bi\-Directional |
| 10 | PB2\(PDI/PCINT2/MOSI\) | Bi\-Directional |
| 11 | PB3\(PD0/PCINT3/MISO\) | Bi\-Directional |
| 12 | PB7\(PCINT7/OC0A/OC1C/\~\{RTS\}\) | Bi\-Directional |
| 13 | \~\{RESET\} | Bi\-Directional |
| 14 | VCC | Bi\-Directional |
| 15 | GND | Bi\-Directional |
| 16 | XTAL2 | Bi\-Directional |
| 17 | XTAL1 | Bi\-Directional |
| 18 | PD0\(OC0B/SCL/INT0\) | Bi\-Directional |
| 19 | PD1\(SDA/INT1\) | Bi\-Directional |
| 20 | PD2\(RXD1/INT2\) | Bi\-Directional |
| 21 | PD3\(TXD1/INT3\) | Bi\-Directional |
| 22 | PD5\(XCLK1/\~\{CTS\}\) | Bi\-Directional |
| 23 | GND | Bi\-Directional |
| 24 | AVCC | Bi\-Directional |
| 25 | PD4\(ICP1/ADC8\) | Bi\-Directional |
| 26 | PD6\(T1/ADC9/\~\{OC4D\}\) | Bi\-Directional |
| 27 | PD7\(T0/OC4D/ADC10\) | Bi\-Directional |
| 28 | PB4\(PCINT4/ADC11\) | Bi\-Directional |
| 29 | PB5\(PCINT5/OC1A/ADC12/\~\{OC4B\}\) | Bi\-Directional |
| 30 | PB6\(PCINT6/OC1B/OC4B/ADC13\) | Bi\-Directional |
| 31 | PC6\(OC3A/\~\{OC4A\}\) | Bi\-Directional |
| 32 | PC7\(ICP3/CLK0/OC4A\) | Bi\-Directional |
| 33 | PE2\(\~\{HWB\}\) | Bi\-Directional |
| 34 | VCC | Bi\-Directional |
| 35 | GND | Bi\-Directional |
| 36 | PF7\(ADC7/TDI\) | Bi\-Directional |
| 37 | PF6\(ADC6/TDO\) | Bi\-Directional |
| 38 | PF5\(ADC5/TMS\) | Bi\-Directional |
| 39 | PF4\(ADC4/TCK\) | Bi\-Directional |
| 40 | PF1\(ADC1\) | Bi\-Directional |
| 41 | PF0\(ADC0\) | Bi\-Directional |
| 42 | AREF | Bi\-Directional |
| 43 | GND | Bi\-Directional |
| 44 | AVCC | Bi\-Directional |

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*Generated from [https://flux\.ai/openpartlist/atmega32u4\~dt](https://flux.ai/openpartlist/atmega32u4~dt)*