# TCA9555RTWR (Component)
## Description
I/O Expander 16 I²C, SMBus 400 kHz 24-WQFN (4x4) #CommonPartLibrary #IntegratedCircuits #Interface #I/O Expanders #TCA9555
## Component Details
- **Owner:** jecstronic
- **Created:** 5/5/2022
- **Last Updated:** 6/27/2023
- **Visibility:** Public
- **Part Type:** Integrated Circuit
- **License:** https://creativecommons.org/licenses/by/4.0/
- **Manufacturer Part Number:** TCA9555RTWR
- **Datasheet URL:** https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftca9555
- **Manufacturer Name:** Texas Instruments
- **Used in:** 30 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/tca9555rtwr/texas-instruments.html?utm_currency=USD®ion=nac) | $0.9128 | 94 |
| [Digi-Key](https://www.digikey.com/en/products/detail/texas-instruments/TCA9555RTWR/2096237) | N/A | N/A |
| [HQonline](https://www.hqonline.com/product-detail/i-o-expanders-ti-tca9555rtwr-2500416857) | $0.46064 | 505 |
| [LCSC](https://www.lcsc.com/product-detail/C140277.html) | $0.7594 | 3.7K |
| [Mouser](https://www.mouser.com/ProductDetail/Texas-Instruments/TCA9555RTWR?qs=O3wcJz4o8IcrHWYYvhjJoA%3D%3D) | $1.75 | 2.9K |
| [Verical](https://www.verical.com/pd/texas-instruments-interface---i-o-expander-TCA9555RTWR-529208?utm_currency=USD) | N/A | N/A |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Texas Instruments
- **MPN:** TCA9555RTWR
- **Package / Case Code:** 16-WQFN
- **Pin Count:** 25
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | P00 | |
| 2 | P01 | |
| 3 | P02 | |
| 4 | P03 | |
| 5 | P04 | |
| 6 | P05 | |
| 7 | P06 | |
| 8 | P07 | |
| 9 | GND | |
| 10 | P10 | |
| 11 | P11 | |
| 12 | P12 | |
| 13 | P13 | |
| 14 | P14 | |
| 15 | P15 | |
| 16 | P16 | |
| 17 | P17 | |
| 18 | A0 | |
| 19 | SCL | |
| 20 | SDA | |
| 21 | VCC | |
| 22 | ~INT | |
| 23 | A1 | |
| 24 | A2 | |
| 25 | EPAD | |
---
*Generated from [https://www.flux.ai/jecstronic/tca9555rtwr~u4i](https://www.flux.ai/jecstronic/tca9555rtwr~u4i)*