CD74HC257MT

Overview

The CD74HC257MT is a high-speed CMOS logic device manufactured by Texas Instruments, belonging to the HC series. It functions as a quad 2-input multiplexer with three-state non-inverting outputs. The component operates within a supply voltage range of 2 V to 6 V and features four independent circuits. It utilizes a TSSOP-16 surface-mount package and supports operation temperatures from -40 °C to +85 °C.

Feature Summary

• Quad 2-to-1 data selector configuration
• Three-state non-inverting outputs
• High-speed CMOS technology

Applications

• Digital signal routing
• Data selection in logic circuits
• Multiplexing applications

Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to ensure accuracy. Confirm that the suffix 'MT' corresponds to the TSSOP-16 package and standard operating temperature range. Cross-reference with authorized distributors for current availability and compliance status.

Selection Notes

Select this component when a quad 2-input multiplexer with three-state outputs is required in HC logic family designs. Ensure the application voltage falls within the 2 V to 6 V range. Consider the TSSOP-16 package constraints and the -40 °C to +85 °C operating temperature limits during PCB layout and thermal design.

Part Context

This device is part of the SN74HC257 family of quadruple 2-line to 1-line data selectors. It shares functional similarities with other HC series multiplexers but is distinguished by its specific package type and pinout configuration. The HC series offers high speed while maintaining low power consumption typical of CMOS technology.

Replacement Considerations

Compatible substitutes include SN74HC257DR and SN74HC257PWR from Texas Instruments, provided the package and electrical specifications match the design requirements.