Texas Instruments' PCF8574PWRG4 is a high-performance, low-power remote 8-bit I/O expander for I2C-bus/SMBus applications.

• Operation: Operates as a slave device on the I2C-bus.
• Ports: Has eight quasi-bidirectional ports, which can be independently assigned as inputs or outputs.
• Feature: Has an interrupt output that can be connected to the interrupt logic of the microcontroller.
• Technology: Designed using CMOS technology which ensures low power consumption.
• Feature: Has an open-drain interrupt output.
• Voltage Range: Operates at a supply voltage range of 2.5V to 6V.
• Feature: Ability to operate at high-speed mode (400 kbit/s).
• Feature: Internal power-on reset.
• Package: Comes in a compact TSSOP20 package.
• Temperature Range: Wide operating temperature range of -40°C to +85°C.
• Compatibility: Designed to be compatible with most microcontrollers.