CD74HCT251M96

Overview

The CD74HCT251M96 is a high-speed CMOS multiplexer manufactured by Texas Instruments. It implements an 8-input to 1-output configuration within a single circuit. The device utilizes the HCT logic series, ensuring compatibility with standard TTL-driven systems while maintaining CMOS low-power characteristics. It is housed in a 16-pin Small Outline Integrated Circuit (SOIC) package designed for surface-mount technology applications.

Feature Summary

• Provides digital data selection from eight distinct input lines to a single output channel
• Features three address inputs for binary decoding of selected input channels
• Includes an active-low enable pin to control data transmission state

Applications

• Digital signal routing and switching networks
• Data acquisition system channel selection
• Microprocessor peripheral interface expansion

Procurement Notes

Verify the specific suffix 'M96' against the manufacturer's current datasheet to confirm package dimensions and tape-and-reel specifications. Ensure the component meets RoHS compliance requirements for your target assembly process. Cross-reference the ordering part number with official distributor catalogs to validate availability and lead times before finalizing procurement plans.

Selection Notes

Select this component when interfacing between 5V logic families requiring high noise immunity and fast switching speeds. The HCT series ensures voltage level compatibility with older TTL standards. Consider the SOIC-16 footprint constraints during PCB layout. Evaluate propagation delay specifications against system timing requirements to ensure signal integrity at operating frequencies.

Part Context

This part belongs to the Texas Instruments CD74HCT30 family of high-speed CMOS logic devices. The 'CD' prefix indicates commercial temperature range operation, while 'HCT' specifies High-speed CMOS Technology compatible with TTL inputs. The '251' designation identifies the specific 8-to-1 multiplexer function code within the broader logic IC portfolio.

Replacement Considerations

The obsolete CD74HC251M can be replaced by the CD74HC251M96. Verify electrical parameter equivalence and pinout compatibility before substitution.