# ATTINY44A\-MU (Component)

## Description

MICROCHIP
ATTINY44A\-MU
QFN\-20\_L4\.0\-W4\.0\-P0\.5\-BL\-EP
LCSC Part Number: C123718
JLCPCB Part Class: Extended Part
Manufactured by MICROCHIP\(美国微芯\) 

## Component Details

- **Owner:** lcsc
- **Created:** 10/31/2024
- **Last Updated:** 4/24/2025
- **Visibility:** Public
- **Manufacturer Name:** MICROCHIP\(美国微芯\)
- **Part Type:** MICROCHIP
- **JLCPCB Part Class:** Extended Part
- **LCSC Part Number:** C123718
- **Package or Case Code:** QFN\-20\_L4\.0\-W4\.0\-P0\.5\-BL\-EP
- **Product Info Url:** https://lcsc\.com/product\-detail/Others\_Microchip\-Tech\_ATTINY44A\-MU\_Microchip\-Tech\-ATTINY44A\-MU\_C123718\.html
- **Manufacturer Part Number:** ATTINY44A\-MU
- **Datasheet URL:** https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2410121938\_Microchip\-Tech\-ATTINY44A\-MU\_C123718\.pdf

## 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/attiny44a-mu/microchip-technology.html?utm_currency=USD&region=nac) | $0\.8924 | 0 |
| [Digi\-Key](https://www.digikey.com/en/products/detail/rochester-electronics-llc/ATTINY44A-MU/13440052) | $0\.94 | 49K |
| [HQonline](https://www.hqonline.com/product-detail/8-bit-mcu-microcontrollers-microchip-attiny44a-mu-1043918480) | $1\.37655 | 100 |
| [LCSC](https://www.lcsc.com/product-detail/C123718.html) | $2\.5615 | 105 |
| [Mouser](https://www.mouser.com/en/ProductDetail/Microchip-Technology/ATTINY44A-MU?qs=MCbhYIqTEtmCcSA5CYxDlQ%253D%253D) | $0\.94 | 554 |
| [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=ATTINY44A-MU) | $0\.91 | 0 |
| [Verical](https://www.verical.com/pd/microchip-technology-microcontroller-ATTINY44A-MU-2628257?utm_currency=USD) | N/A | N/A |

- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Microchip
- **MPN:** ATTINY44A\-MU
- **Mount Type:** PCB
- **Package / Case Code:** 20\-QFN
- **Pin Count:** 21
- **Logic Function:** AND
## Pins

| Pin | Name | Type |
|-----|------|------|
| 1 | \(ADC4/USCK/SCL/T1/PCINT4\)PA4 |  |
| 2 | \(ADC3/T0/PCINT3\)PA3 |  |
| 3 | \(ADC2/AIN1/PCINT2\)PA2 |  |
| 4 | \(ADC1/AIN0/PCINT1\)PA1 |  |
| 5 | \(ADC0/AREF/PCINT0\)PA0 |  |
| 6 | DNC |  |
| 7 | DNC |  |
| 8 | GND |  |
| 9 | VCC |  |
| 10 | DNC |  |
| 11 | PB0\(PCINT8/XTAL1/CLKI\) |  |
| 12 | PB1\(PCINT9/XTAL2\) |  |
| 13 | PB3\(PCINT11/\~\{RESET\}/dW\) |  |
| 14 | PB2\(PCINT10/INT0/OC0A/CKOUT\) |  |
| 15 | PA7\(PCINT7/ICP/OC0B/ADC7\) |  |
| 16 | PA6 |  |
| 17 | DNC |  |
| 18 | DNC |  |
| 19 | DNC |  |
| 20 | PA5 |  |
| 21 | EP |  |

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*Generated from [https://flux\.ai/lcsc/attiny44a\-mu\~fivp](https://flux.ai/lcsc/attiny44a-mu~fivp)*