MC74VHC126ML1

Overview

The MC74VHC126ML1 is a quad bus buffer fabricated with silicon gate CMOS technology. It provides non-inverting high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining low power dissipation. The device features three-state control inputs and is designed for an operating voltage range of 2.0 V to 5.5 V. It includes power-down protection on inputs, balanced propagation delays, and high noise immunity. The component offers latchup performance exceeding 300 mA and ESD protection rated at HBM > 2000 V.

Feature Summary

• High-speed non-inverting operation comparable to Bipolar Schottky TTL
• Three-state control inputs for effective bus management
• Power-down protection provided on all inputs

Applications

• Bus-oriented memory and register applications
• Clock drivers and buffering
• High-speed data transmission systems

Procurement Notes

Verify the specific suffix 'ML1' against official manufacturer documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with required operating temperature ranges and voltage levels before procurement. Cross-reference ordering information directly with NXP or authorized distributors to avoid discrepancies in lead times or packaging quantities.

Selection Notes

Select this component when a quad bus buffer with three-state outputs is required for 2.0 V to 5.5 V systems. It serves as a suitable replacement for standard logic families due to pin and function compatibility. Consider its low power dissipation and high noise immunity for designs prioritizing signal integrity and energy efficiency in high-speed digital circuits.

Part Context

This part belongs to the MC74VHC series of high-speed CMOS logic devices produced by Motorola (now NXP). The series is characterized by performance similar to Bipolar Schottky TTL but with CMOS advantages. The MC74VHC126 specifically functions as a quad bus buffer, widely used in digital systems requiring reliable data routing and isolation.

Replacement Considerations

Compatible substitutes include MC74VHC126DR2G and MC74VHC126DTR2G from ON Semiconductor/NXP. These parts share identical functional descriptions and electrical characteristics. Verify that the alternative package types meet the physical constraints of the existing design.