# MCP23S17-E-SP (Component)
## Description
I/O Expander 16 SPI 10 28-SPDIP #CommonPartLibrary #IntegratedCircuits #Interface #I/O Expanders #MCP23S17
## Component Details
- **Owner:** jecstronic
- **Created:** 12/7/2021
- **Last Updated:** 6/24/2023
- **Visibility:** Public
- **Manufacturer Part Number:** MCP23S17-E/SP
- **Part Type:** Integrated Circuit
- **Datasheet URL:** http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en023709
- **Manufacturer Name:** Microchip
- **License:** https://creativecommons.org/licenses/by/4.0/
- **Used in:** 40 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/mcp23s17-esp/microchip-technology.html?utm_currency=USD®ion=nac) | $0.8092 | 69 |
| [Digi-Key](https://www.digikey.com/en/products/detail/microchip-technology/MCP23S17-E-SP/894276) | $1.78 | 5.9K |
| [LCSC](https://www.lcsc.com/product-detail/C148096.html) | $2.634 | 32 |
| [Mouser](https://www.mouser.com/ProductDetail/Microchip-Technology/MCP23S17-E-SP?qs=usxtMOJb1RyzobAZrBjFZA%3D%3D) | $1.78 | 6.1K |
| [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=MCP23S17-E%2FSP) | $2.00 | 15 |
| [Verical](https://www.verical.com/pd/microchip-technology-interface---i-o-expander-MCP23S17-E-SP-513159) | N/A | N/A |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Microchip
- **MPN:** MCP23S17-E/SP
- **Pin Count:** 28
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | GPB0 | |
| 2 | GPB1 | |
| 3 | GPB2 | |
| 4 | GPB3 | |
| 5 | GPB4 | |
| 6 | GPB5 | |
| 7 | GPB6 | |
| 8 | GPB7 | |
| 9 | VDD | |
| 10 | VSS | |
| 11 | ~CS~ | |
| 12 | SCK | |
| 13 | SI | |
| 14 | SO | |
| 15 | A0 | |
| 16 | A1 | |
| 17 | A2 | |
| 18 | ~RESET~ | |
| 19 | INTB | |
| 20 | INTA | |
| 21 | GPA0 | |
| 22 | GPA1 | |
| 23 | GPA2 | |
| 24 | GPA3 | |
| 25 | GPA4 | |
| 26 | GPA5 | |
| 27 | GPA6 | |
| 28 | GPA7 | |
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*Generated from [https://www.flux.ai/jecstronic/mcp23s17-e-sp](https://www.flux.ai/jecstronic/mcp23s17-e-sp)*