The PCF8574ADWR from Texas Instruments is a powerful and highly efficient Remote 8-Bit I/O Expander for I2C-Bus/SMBus.

• Function: Provide high-speed I2C interface communication, allowing the microcontroller to interact with a wide range of peripheral devices.
• Ports: Eight quasi-bidirectional ports, 100 kHz I2C-bus interface, and three hardware address inputs.
• Features: These ports can be used as inputs, outputs, or both, and they can sink up to 25 mA. Includes an interrupt line (INT).
• Package: Compact and robust surface-mount SOIC package.
• Power Supply Range: Operates over a broad power supply range from 2.5 to 6.0 V.
• Function: Includes a built-in power-on reset function.
• Current Consumption: Has a low stand-by current consumption, making it an energy-efficient choice.
• Temperature Range: Expanded temperature range (-40°C to +85°C).
• Compliance: RoHS compliant and lead-free.