# PCA9555DWR (Component)
## Description
I/O Expander 16 I²C, SMBus 400 kHz 24-SOIC #CommonPartLibrary #IntegratedCircuits #Interface #I/O Expanders #PCA9555
## Component Details
- **Owner:** jecstronic
- **Created:** 12/8/2021
- **Last Updated:** 6/26/2023
- **Visibility:** Public
- **Manufacturer Part Number:** PCA9555DWR
- **Part Type:** Integrated Circuit
- **License:** https://creativecommons.org/licenses/by/4.0/
- **Datasheet URL:** https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fpca9555
- **Manufacturer Name:** Texas Instruments
- **Used in:** 4 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/pca9555dwr/texas-instruments.html?utm_currency=USD®ion=asia) | $1.869 | 699 |
| [Digi-Key](https://www.digikey.com/en/products/detail/texas-instruments/PCA9555DWR/1216579) | N/A | N/A |
| [LCSC](https://www.lcsc.com/product-detail/C2652274.html) | $3.7451 | 214 |
| [Mouser](https://www.mouser.com/ProductDetail/Texas-Instruments/PCA9555DWR?qs=wgAEGBTxy7mbZp2NT2PZEA%3D%3D) | $3.48 | 1K |
| [Verical](https://www.verical.com/pd/texas-instruments-interface---i-o-expander-PCA9555DWR-49605?utm_currency=USD) | N/A | N/A |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Texas Instruments
- **MPN:** PCA9555DWR
- **Package / Case Code:** 16-SOIC
- **Pin Count:** 24
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | ~INT | |
| 2 | A1 | |
| 3 | A2 | |
| 4 | IO0_0 | |
| 5 | IO0_1 | |
| 6 | IO0_2 | |
| 7 | IO0_3 | |
| 8 | IO0_4 | |
| 9 | IO0_5 | |
| 10 | IO0_6 | |
| 11 | IO0_7 | |
| 12 | VSS | |
| 13 | IO1_0 | |
| 14 | IO1_1 | |
| 15 | IO1_2 | |
| 16 | IO1_3 | |
| 17 | IO1_4 | |
| 18 | IO1_5 | |
| 19 | IO1_6 | |
| 20 | IO1_7 | |
| 21 | A0 | |
| 22 | SCL | |
| 23 | SDA | |
| 24 | VDD | |
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*Generated from [https://www.flux.ai/jecstronic/pca9555dwr~ffh](https://www.flux.ai/jecstronic/pca9555dwr~ffh)*