MC74ACT126ML1

Overview

The MC74ACT126ML1 is a high-speed CMOS 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 four independent outputs, each with a separate output enable control input that is active-high. Designed for a 4.5 V to 5.5 V operating range, it offers balanced propagation delays and low noise characteristics. The component includes power-down protection on inputs and exhibits latchup performance exceeding specified current limits.

Feature Summary

• Provides four independent non-inverting buffers with active-high output enables
• Delivers high-speed operation comparable to Bipolar Schottky TTL with low power consumption
• Includes power-down protection on all inputs to prevent floating states
• Features balanced propagation delays and low voltage overshoot/undershoot

Applications

• Memory address drivers in computer systems
• Clock drivers for synchronous circuits
• Bus-oriented systems requiring signal buffering
• High-speed data transmission lines

Procurement Notes

Verify the specific suffix ML1 against official onsemi documentation to confirm package type and tape-and-reel specifications. Ensure the orderable part number matches the exact revision required for your design. Cross-reference RoHS compliance status directly from the manufacturer's latest datasheet or compliance statement before finalizing procurement.

Selection Notes

Select this component when a quad bus buffer with active-high enable control is required for 5V logic systems. It serves as a suitable alternative to standard LS/TTL buffers where lower power dissipation is needed without sacrificing speed. Consider its pin compatibility with other standard logic families if migrating existing designs. Verify input/output voltage levels match the system requirements.

Part Context

This part belongs to the MC74ACT series of advanced CMOS logic devices produced by onsemi. The ACT series combines the speed of bipolar logic with the low power benefits of CMOS technology. These components are widely used in digital systems requiring reliable signal buffering and isolation between different circuit stages.

Replacement Considerations

Check for direct pin-compatible alternatives such as MC74ACT125 (active-low enable) if control polarity can be adjusted. Other quad bus buffers from the same family may offer similar electrical characteristics but verify enable logic and operating voltage ranges carefully.