PCF8574APWR TI I/O Expanders

The PCF8574A is an 8-bit remote I2C I/O expander with interrupt output, operating from a 2.5 V to 5.5 V supply. It provides 8 GPIO pins that can be independently configured as inputs or outputs with built-in pull-up resistors, and features an open-drain interrupt output for input change notification. Three address pins allow up to eight devices on the same bus (64 total I/Os). Packaged in a 20-pin TSSOP (PW), it is ideal for expanding GPIO capabilities of microcontrollers in portable electronics, server management, and industrial controls. In stock at HL Electronics – request a quote for fast delivery.