PCF8574 Datasheet PDF – Remote 8-Bit I/O Expander

Part Number: PCF8574, PCF8574N

Function: Remote 8-Bit I/O Expander

Package: DIP 16 Pin type

Manufacturer: Texas Instruments




This 8-bit input/output (I/O) expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 6-V VCC operation. The PCF8574 device provides general-purpose remote I/O expansion for most microcontroller families by way of the I2C interface [serial clock (SCL), serial data (SDA)].




1. Low Standby-Current Consumption of 10 μA Max
2. I2C to Parallel-Port Expander
3. Open-Drain Interrupt Output
4. Compatible With Most Microcontrollers
5. Latched Outputs With High-Current Drive Capability for Directly Driving LEDs
6. Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

Official Homepage: https://www.ti.com/product/PCF8574


1. Telecom Shelters : Filter Units
2. Servers
3. Routers (Telecom Switching Equipment)
4. Personal Computers
5. Personal Electronics
6. Industrial Automation
7. Products with GPIO-Limited Processors

PCF8574 Datasheet PDF


PCF8574 pdf

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