# PCF8574AP (Component)

## Description

8\-bit I/O Expander, I2C interface, interrupt output, fixed address bits 0b0111xxx, DIP\-16
NXP Port\-Expander
DIP\*W7\.62mm\* 

## Component Details

- **Owner:** kicad\-part\-library
- **Created:** 10/28/2026
- **Last Updated:** 10/28/2026
- **Visibility:** Public
- **Manufacturer Name:** NXP
- **Package or Case Code:** DIP\-16\_W7\.62mm
- **Manufacturer Part Number:** PCF8574AP
- **Part Type:** Interface
- **Datasheet URL:** https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/b286c7c28cc51329eca9c8441f7ce04e3524d94eb2fd8c6c22ec8b44e89de7d1\.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 |
|------------|--------------------|-------|
| [LCSC](https://www.lcsc.com/product-detail/C398072.html) | $0\.7998 | 952 |

- **Part Type:** Integrated Circuits
- **Sub-Type:** Other
- **Manufacturer:** NXP
- **MPN:** PCF8574AP
- **Package / Case Code:** 16\-DIP
- **Pin Count:** 16
## Pins

| Pin | Name | Type |
|-----|------|------|
| 1 | A0 | Input |
| 2 | A1 | Input |
| 3 | A2 | Input |
| 4 | P0 | Bi\-Directional |
| 5 | P1 | Bi\-Directional |
| 6 | P2 | Bi\-Directional |
| 7 | P3 | Bi\-Directional |
| 8 | GND | Power In |
| 9 | P4 | Bi\-Directional |
| 10 | P5 | Bi\-Directional |
| 11 | P6 | Bi\-Directional |
| 12 | P7 | Bi\-Directional |
| 13 | \~\{INT\} | Open Collector |
| 14 | SCL | Input |
| 15 | SDA | Bi\-Directional |
| 16 | VDD | Power In |

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*Generated from [https://flux\.ai/kicad\-part\-library/pcf8574ap\~fgh](https://flux.ai/kicad-part-library/pcf8574ap~fgh)*