# ATmega32U4\-A (Component)

## Description

16MHz, 32kB Flash, 2\.5kB SRAM, 1kB EEPROM, USB 2\.0, TQFP\-44
AVR 8bit Microcontroller MegaAVR USB
TQFP\*10x10mm\*P0\.8mm\* 

## Component Details

- **Owner:** kicad\-part\-library
- **Created:** 10/28/2026
- **Last Updated:** 10/28/2026
- **Visibility:** Public
- **Package or Case Code:** TQFP\-44\_10x10mm\_P0\.8mm
- **Manufacturer Name:** Microchip
- **Datasheet URL:** https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/3a6da57489682bd8cf4b3ef3b3c97b4a73b1faa77f0b3b3bd84dcd0843cdfaac\.pdf
- **Manufacturer Part Number:** ATmega32U4\-A
- **Part Type:** Microcontroller

- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Microchip
- **MPN:** ATmega32U4\-A
- **Package / Case Code:** 44\-TQFP
- **Pin Count:** 44
- **Logic Function:** AND
## Pins

| Pin | Name | Type |
|-----|------|------|
| 1 | PE6 | Bi\-Directional |
| 2 | UVCC | Power In |
| 3 | D\- | Bi\-Directional |
| 4 | D\+ | Bi\-Directional |
| 5 | UGND | Passive |
| 6 | UCAP | Passive |
| 7 | VBUS | Input |
| 8 | PB0 | Bi\-Directional |
| 9 | PB1 | Bi\-Directional |
| 10 | PB2 | Bi\-Directional |
| 11 | PB3 | Bi\-Directional |
| 12 | PB7 | Bi\-Directional |
| 13 | \~\{RESET\} | Input |
| 14 | VCC | Power In |
| 15 | GND | Power In |
| 16 | XTAL2 | Output |
| 17 | XTAL1 | Input |
| 18 | PD0 | Bi\-Directional |
| 19 | PD1 | Bi\-Directional |
| 20 | PD2 | Bi\-Directional |
| 21 | PD3 | Bi\-Directional |
| 22 | PD5 | Bi\-Directional |
| 23 | GND | Passive |
| 24 | AVCC | Power In |
| 25 | PD4 | Bi\-Directional |
| 26 | PD6 | Bi\-Directional |
| 27 | PD7 | Bi\-Directional |
| 28 | PB4 | Bi\-Directional |
| 29 | PB5 | Bi\-Directional |
| 30 | PB6 | Bi\-Directional |
| 31 | PC6 | Bi\-Directional |
| 32 | PC7 | Bi\-Directional |
| 33 | \~\{HWB\}/PE2 | Bi\-Directional |
| 34 | VCC | Passive |
| 35 | GND | Passive |
| 36 | PF7 | Bi\-Directional |
| 37 | PF6 | Bi\-Directional |
| 38 | PF5 | Bi\-Directional |
| 39 | PF4 | Bi\-Directional |
| 40 | PF1 | Bi\-Directional |
| 41 | PF0 | Bi\-Directional |
| 42 | AREF | Passive |
| 43 | GND | Passive |
| 44 | AVCC | Passive |

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*Generated from [https://flux\.ai/kicad\-part\-library/atmega32u4\-a\~spd](https://flux.ai/kicad-part-library/atmega32u4-a~spd)*