PCF8574 Overview
This 8-bit input/output (I/O) expander for the two-line bidirectional bus (I2C) is designed for 2.5V to 6V 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)].
PCF8574 Key Features
- Low standby-current consumption of 10μA max
- I2C to parallel-port expander
- Open-drain interrupt output
- patible with most microcontrollers
- Latched outputs with high-current drive capability
- Latch-up performance exceeds 100mA per JESD
