# PCA9544ADWR (Component)
## Description
Switch ICs - Various 4-Ch I2C & SMBus Multiplexer SOIC-20 #CommonPartLibrary #IntegratedCircuits #Interface #Specialized #PCA9544
## Component Details
- **Owner:** jecstronic
- **Created:** 12/8/2021
- **Last Updated:** 6/24/2023
- **Visibility:** Public
- **Datasheet URL:** http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fpca9544a
- **Manufacturer Name:** Texas Instruments
- **Part Type:** Integrated Circuit
- **License:** https://creativecommons.org/licenses/by/4.0/
- **Manufacturer Part Number:** PCA9544ADWR
- **Used in:** 2 projects
## 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/pca9544adwr/texas-instruments.html?utm_currency=USD®ion=nac) | N/A | N/A |
| [Digi-Key](https://www.digikey.com/en/products/detail/texas-instruments/PCA9544ADWR/1216564) | $2.72 | 9.9K |
| [LCSC](https://www.lcsc.com/product-detail/C2860730.html) | $3.0418 | 0 |
| [Mouser](https://www.mouser.com/ProductDetail/Texas-Instruments/PCA9544ADWR?qs=wgAEGBTxy7lmhwvm7XwC0A%3D%3D) | $2.38 | 1.9K |
| [Verical](https://www.verical.com/pd/texas-instruments-multiplexer-PCA9544ADWR-524388?utm_currency=USD) | N/A | N/A |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Texas Instruments
- **MPN:** PCA9544ADWR
- **Package / Case Code:** 20-SOIC
- **Pin Count:** 20
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | A0 | |
| 2 | A1 | |
| 3 | A2 | |
| 4 | ~INT0 | |
| 5 | SD0 | |
| 6 | SC0 | |
| 7 | ~INT1 | |
| 8 | SD1 | |
| 9 | SC1 | |
| 10 | VSS | |
| 11 | ~INT2 | |
| 12 | SD2 | |
| 13 | SC2 | |
| 14 | ~INT3 | |
| 15 | SD3 | |
| 16 | SC3 | |
| 17 | ~INT | |
| 18 | SCL | |
| 19 | SDA | |
| 20 | VDD | |
---
*Generated from [https://www.flux.ai/jecstronic/pca9544adwr](https://www.flux.ai/jecstronic/pca9544adwr)*