PCF8574A Datasheet (Texas Instruments) - Remote 8-Bit I/O Expander

PCF8574A, Remote 8-Bit I/O Expander

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 PCF8574A device provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)].

The device f

PCF8574A Features

* Low Standby-Current Consumption of 10 μA Max

* I2C to Parallel-Port Expander

* Open-Drain Interrupt Output

* Compatible With Most Microcontrollers

* Latched Outputs With High-Current Drive Capability for Directly Driving LEDs

* Latch-Up Performance E