PCF8574ATD

The PCF8574ATD, manufactured by NXP Semiconductors, is a versatile I/O expander chip designed for I2C-bus applications. With its 8-bit quasi-bidirectional I/O port, this device offers flexibility and control for various electronic systems. Its compatibility with the I2C bus allows for seamless integration into existing setups, while the three address select pins enable multiple devices to communicate on the same bus. Additionally, the PCF8574ATD features convenient attributes such as an active-low interrupt output and hardware addressing, making it a reliable choice for system design

主な特長

• Operating supply voltage 2.5 to 6 V
• Low standby current consumption of 10 µA maximum
• I2C-bus to parallel port expander
• Open-drain interrupt output
• 8-bit remote I/O port for the I2C-bus
• Compatible with most microcontrollers
• Latched outputs with high current drive capability for
• directly driving LEDs
• Address by 3 hardware address pins for use of up to
• 8 devices (up to 16 with PCF8574A)
• DIP16, or space-saving SO16 or SSOP20 packages.