CD74HC251MT

Overview

The CD74HC251MT is a high-speed CMOS logic device manufactured by Texas Instruments, functioning as an 8-input multiplexer with three-state outputs. It operates within a supply voltage range of 2V to 6V and supports surface-mount installation in a 16-SOIC package. The component provides one independent circuit capable of selecting one of eight data inputs for transmission to a single output line. It features complementary outputs and is designed for operation across an extended temperature range from -55°C to +125°C.

Feature Summary

• Provides high-speed data selection capabilities using CMOS technology
• Features three-state outputs allowing direct bus driving connections
• Supports wide operating voltage ranges suitable for various digital systems

Applications

• Data routing in digital communication systems
• Address decoding applications
• Signal switching in instrumentation equipment

Procurement Notes

Verify the specific ordering suffix to confirm the tape and reel packaging configuration required for automated assembly processes. Ensure the component meets RoHS compliance standards relevant to your manufacturing region. Confirm that the 16-SOIC footprint matches your printed circuit board design constraints before finalizing procurement orders.

Selection Notes

Select this component when an 8-to-1 data selector with tri-state control is required for high-speed logic applications. Consider the 2V to 6V supply range compatibility with your system's power rails. Verify that the SOIC package dimensions fit within your available board space and thermal management requirements.

Part Context

This part belongs to the Texas Instruments CD74HC series of high-speed CMOS logic devices. It shares functional similarities with other multiplexers in the family but is distinguished by its specific pinout and three-state output capability. The device is commonly used alongside other logic gates and decoders in complex digital circuits requiring efficient signal management.

Replacement Considerations

Public confirmed substitute part numbers include CD74HC251M and CD74HC251MT. Verify pin compatibility and electrical specifications before substituting.