MC74HC125AFG

Overview

The MC74HC125AFG is a non-inverting buffer from the HC logic family, manufactured by onsemi. It features four independent channels with three-state outputs in a 14-SOEIAJ package. The device operates within a supply voltage range of 2 V to 6 V and supports an operating temperature range of -55 °C to +125 °C. Propagation delay varies from 90 ns at 2 V to 15 ns at 6 V. Output drive capability reaches 7.8 mA for both high and low states, with a static current of 4 uA.

Feature Summary

• Provides four independent non-inverting buffer channels with three-state output control
• Compatible with standard CMOS outputs and LSTTL loads via pull-up resistors
• Designed for bus-oriented systems including memory address and clock drivers

Applications

• Three-state memory address drivers
• Clock signal distribution in digital systems
• Bus-oriented system interconnects

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific environmental certifications required for your application. Ensure the package type matches your PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring wide voltage operation between 2 V and 6 V. It is suitable for applications needing high noise immunity and compatibility with both CMOS and TTL logic families. Consider the -55 °C to +125 °C operating range for industrial or automotive environments where thermal stability is critical.

Part Context

This part belongs to the MC74HC125A series of quad buffers. It shares pinout compatibility with LS125 devices. The HC series offers higher speed and lower power consumption compared to older logic families while maintaining broad voltage adaptability for various digital circuit designs.

Replacement Considerations

MC74HC125ADR2G is listed as a direct substitute. Verify package equivalence between SOEIAJ-14 and alternative formats before implementation.