PCA9673DB,112

I/o Expanders Overview

The PCA9673DB,112 is a 16-bit I/O expander designed for I2C and SMBus applications. It operates with a clock frequency of 1 MHz and supports FM+ speeds. The device features a 24-pin SSOP package and provides remote I/O expansion capabilities. Key electrical specifications include an output source/sink current of 100µA and 25mA. It complies with European Union environmental standards, holding ROHS certification and meeting the REACH directive requirements.

I/o Expanders Feature Summary

• Provides 16-bit general-purpose I/O expansion via I2C interface
• Supports remote I/O functionality for distributed systems
• Includes Power-On Reset (POR) feature for reliable initialization

I/o Expanders Applications

• Remote I/O expansion in industrial control systems
• I2C bus interface extension for embedded devices
• SMBus compatible system architectures

I/o Expanders Procurement Notes

Verify component authenticity through authorized NXP channels due to obsolete status. Confirm package integrity and pin alignment against the 24-SSOP specification. Check for compliance documentation including ROHS and REACH certificates. Ensure storage conditions prevent moisture damage prior to reflow soldering processes.

I/o Expanders Selection Notes

Select this component when a 16-bit I/O solution is required for I2C or SMBus networks. Consider the 24-SSOP package constraints for PCB layout. Evaluate the 1MHz clock speed against system timing requirements. Verify that the 25mA sink capability meets load demands for connected peripherals.

I/o Expanders Part Context

This part belongs to the PCA967x series of I/O expanders from NXP Semiconductors. It shares architectural similarities with other members like the PCA9673DK-T and PCA9673BS-T, differing primarily in packaging and reel specifications. The DB suffix indicates the specific SSOP package variant within this family.

I/o Expanders Replacement Considerations

The part status is listed as Obsolete. Potential substitutes within the same family include PCA9673DK-T and PCA9673BS-T, though these differ in packaging type. Verify functional compatibility and pinout alignment before substitution.