CD74HC126MT

Overview

The CD74HC126MT is a high-speed CMOS logic quad buffer with three-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V and features four independent non-inverting buffers, each with a dedicated control input. The device utilizes a 14-SOIC surface-mount package and supports an operating temperature range from -55°C to 125°C. It provides balanced output drive capabilities for both high and low states.

Feature Summary

• High-speed CMOS technology ensures fast switching speeds and low power consumption.
• Quad configuration provides four independent non-inverting buffers with individual enable controls.
• Three-state outputs allow direct connection to bus lines without external drivers.
• Wide operating voltage range supports compatibility with various digital systems.

Applications

• Bus-oriented memory and data transmission applications
• Clock distribution circuits requiring buffered signals
• I/O port expansion in embedded systems

Procurement Notes

Verify the specific suffix 'MT' against the manufacturer's official datasheet to confirm package dimensions and tape-and-reel specifications. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the ordering part number with Texas Instruments documentation to avoid confusion with similar variants like SN74HC126 or CD74HCT126.

Selection Notes

Select this component when a quad buffer with three-state capability is required for bus isolation. The HC series offers standard speed suitable for most general-purpose digital logic. Consider the HCT variant if interfacing directly with TTL-level inputs while maintaining CMOS noise immunity. Verify that the 14-SOIC package fits the available PCB footprint.

Part Context

This component belongs to the 74HC family of high-speed CMOS logic devices. It serves as a fundamental building block for digital signal routing and buffering. The device is widely used in consumer electronics, industrial control, and computing equipment where reliable signal integrity and moderate speed are essential.

Replacement Considerations

SN74HC126MT: Pin-compatible alternative from Texas Instruments with identical functionality. CD74HC126M96: Similar quad buffer in SOIC-14 package. Check electrical characteristics and package tolerance before substitution.