# ATMEGA 32U4 (Component)
## Description
8-bit Microcontroller with 32K bytes of ISP Flash and USB Controller
## Component Details
- **Owner:** corynrobinson
- **Created:** 12/29/2021
- **Last Updated:** 7/26/2023
- **Visibility:** Public
- **Part Type:** Microcontroller
- **Manufacturer Name:** Microchip
- **Datasheet URL:** https://datasheet.octopart.com/ATMEGA32U4-AU-Microchip-datasheet-65729178.pdf
- **Frequency:** 16MHz
- **Manufacturer Part Number:** ATMEGA32U4-AU
- **Voltage:** 5V
- **Purchase Url:** https://octopart.com/atmega32u4-au-microchip-77760310?r=sp#Specs
- **Package or Case Code:** 44-TQFP
- **Used in:** 112 projects
- **Stars:** 1
## Distributor Pricing (qty 1)
*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*
| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/atmega32u4-au/microchip-technology.html?utm_currency=USD®ion=nac) | $4.811 | 433 |
| [Digi-Key](https://www.digikey.com/en/products/detail/microchip-technology/ATMEGA32U4-AU/1914602) | $5.29 | 13K |
| [LCSC](https://www.lcsc.com/product-detail/C44854.html) | $5.9298 | 319 |
| [Mouser](https://www.mouser.com/ProductDetail/Microchip-Technology/ATMEGA32U4-AU?qs=SSucg2PyLi7mKWjHIsNJ3w%3D%3D) | $5.29 | 5.5K |
| [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=ATMEGA32U4-AU) | $5.29 | 160 |
| [Verical](https://www.verical.com/pd/microchip-technology-microcontroller-ATMEGA32U4-AU-2634118?utm_currency=USD) | $10.0628 | 1 |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Microchip
- **MPN:** ATMEGA32U4-AU
- **Package / Case Code:** 44-TQFP
- **Pin Count:** 44
- **Frequency:** 16MHz
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | PE6 | |
| 2 | UVcc | |
| 3 | D- | |
| 4 | D+ | |
| 5 | UGnd | |
| 6 | UCap | |
| 7 | VBus | |
| 8 | PB0 | |
| 9 | PB1 | |
| 10 | PB2 | |
| 11 | PB3 | |
| 12 | PB7 | |
| 13 | RESET | |
| 14 | VCC | |
| 15 | GND | |
| 16 | XTAL2 | |
| 17 | XTAL1 | |
| 18 | PD0 | |
| 19 | PD1 | |
| 20 | PD2 | |
| 21 | PD3 | |
| 22 | PD5 | |
| 23 | GND | |
| 24 | AVCC | |
| 25 | PD4 | |
| 26 | PD6 | |
| 27 | PD7 | |
| 28 | PB4 | |
| 29 | PB5 | |
| 30 | PB6 | |
| 31 | PC6 | |
| 32 | PC7 | |
| 33 | PE2 | |
| 34 | VCC | |
| 35 | GND | |
| 36 | PF7 | |
| 37 | PF6 | |
| 38 | PF5 | |
| 39 | PF4 | |
| 40 | PF1 | |
| 41 | PF0 | |
| 42 | AREF | |
| 43 | GND | |
| 44 | AVCC | |
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*Generated from [https://www.flux.ai/corynrobinson/atmega-32u4~3h](https://www.flux.ai/corynrobinson/atmega-32u4~3h)*