The PCF8575DWR is a high-quality, reliable, and versatile product from Texas Instruments, a globally recognized and trusted brand in the field of electronics and semiconductors.

• Description: This product is a 16-bit I/O expander that offers a simple solution for I/O expansion or remote I/O.
• Design: It is designed to provide general-purpose remote I/O expansion via the two-wire bidirectional I2C-bus (Inter-Integrated Circuit) for most microcontroller families.
• Level Shifting: The PCF8575DWR is equipped with a built-in level shifting feature, making it compatible with a wide range of microcontrollers.
• Temperature Range: It operates over an ambient temperature range of -40°C to +85°C, which makes it suitable for a variety of challenging environments.
• Package: The device is available in a compact, surface-mount SOIC (Small Outline Integrated Circuit) package, making it ideal for space-constrained applications.
• Registers: This product has two 8-bit Configuration (input or output selection), Input, Output, and Polarity Inversion (active HIGH or active LOW) registers.
• Interrupt Output: It also features an interrupt output that can be connected to the interrupt logic of the microcontroller. It is always enabled and active HIGH.
• I2C Address: The fixed I2C address of the PCF8575DWR is determined by the address pins A0, A1, and A2.
• Power Consumption: The PCF8575DWR's low standby current consumption makes it suitable for low power applications.
• Open-Drain Interrupt: It also has an open-drain interrupt (INT) output, which can be connected to the interrupt logic of the microcontroller and remains active as long as there is an input state differing from its corresponding input port register state and is disabled by configuring the relevant I/Os as outputs.