CD74HC253MT

Overview

The CD74HC253MT is a high-speed CMOS logic dual 4-to-1-line data selector/multiplexer manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and features a 16-pin SOIC-Narrow (D) package. The device provides balanced propagation delay and transition times, with typical delays ranging from 35 ns to 38 ns depending on specific revisions. It supports surface-mount installation and functions across an extended temperature range of -55°C to +125°C. This component offers significant power reduction compared to LSTTL technologies while maintaining robust performance for digital signal routing applications.

Feature Summary

• Dual independent 4-to-1 multiplexing channels
• High-speed CMOS technology for low power consumption
• Wide operating voltage range supporting 2V to 6V systems
• Extended industrial temperature capability

Applications

• Digital signal path selection in embedded systems
• Data routing in communication interfaces
• Address decoding circuits
• General-purpose logic switching

Procurement Notes

Verify the exact suffix against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure compatibility with your PCB footprint for the 16-pin SOIC-Narrow package. Check for any recent lifecycle notices or obsolescence warnings directly from Texas Instruments before finalizing procurement plans.

Selection Notes

Select this component when dual independent multiplexing is required in space-constrained designs. The HC series offers faster switching speeds than standard 74HC devices. Consider the 2V minimum supply voltage if designing for low-power battery-operated applications. Verify that the 16-pin narrow SOIC package fits your assembly constraints.

Part Context

This part belongs to the Texas Instruments CD74HC253 family of high-speed CMOS logic devices. It is functionally similar to other 74HC253 variants but specifically packaged in the MT suffix configuration for surface-mount technology. The family is designed to replace older TTL logic families in modern digital circuits.

Replacement Considerations

Public confirmed substitutes include CD74HC253M and SN74HC253QDRG4Q1. Verify pinout compatibility and electrical characteristics before substitution.