PCA9672PW,112

I/o Expanders Overview

The PCA9672PW,112 is an 8-bit remote I/O expander for Fast-mode Plus (Fm+) I2C-bus systems. It features a 1 MHz interface with 30 mA drive capability and operates on a supply voltage of 2.3 V to 5.5 V. The device provides eight quasi-bidirectional ports with latched outputs capable of 25 mA sink current and a total package sink capability of 200 mA. It includes an active LOW open-drain interrupt output and an active LOW hardware reset input. Sixteen programmable slave addresses are supported via two address pins. The component operates within a temperature range of -40 °C to +85 °C.

I/o Expanders Feature Summary

• Supports 1 MHz Fast-mode Plus I2C-bus communication
• Provides hardware interrupt and reset functionality
• Features high-current latched outputs for direct LED driving
• Includes readable device ID for identification

I/o Expanders Applications

• LED signs and displays
• Servers
• Industrial control
• Medical equipment
• PLCs

I/o Expanders Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the TSSOP16 package configuration. Ensure that the procurement channel sources components directly from authorized distributors or verified suppliers to guarantee authenticity. Cross-reference the part number with the latest datasheet revision to confirm compatibility with system requirements before finalizing orders.

I/o Expanders Selection Notes

Select this component when an 8-bit I/O expansion solution with high-speed Fm+ bus support is required. It is suitable for applications needing hardware interrupts and reset capabilities without external buffering. Consider the 25 mA per pin sink capability for direct LED driving. Verify that the operating voltage range aligns with the system power supply and that the TSSOP16 package fits the PCB layout constraints.

I/o Expanders Part Context

The PCA9672 belongs to NXP's family of remote I/O expanders designed for I2C-bus systems. It serves as an upgrade to earlier models by offering higher bus speeds and drive currents. The PW suffix indicates the TSSOP16 plastic thin shrink small outline package variant. This series is engineered to reduce microcontroller GPIO usage while maintaining reliable communication in embedded environments.

I/o Expanders Replacement Considerations

PCA9672D, PCA9672BS, PCA9672PW,118