DM74LS125ASJX

Overview

The DM74LS125ASJX is a quad bus driver from the Fairchild Semiconductor 74LS series, housed in a 14-pin SOIC package. It contains four independent non-inverting buffers with three-state outputs controlled by separate enable inputs. Designed for low-voltage operation, it supports supply voltages ranging from 4.75V to 5.25V. The device features high noise immunity and is suitable for driving buses and memory addresses.

Feature Summary

• Four independent non-inverting buffer channels
• Three-state output capability with individual enables
• Low voltage operation within 4.75V to 5.25V range

Applications

• Memory address decoding
• Carry propagation in arithmetic circuits
• Bus-oriented transmissions

Procurement Notes

Verify manufacturer origin as sources list both Fairchild and Rochester Electronics. Confirm package type matches 14-SOIC specifications. Check part status as some listings indicate obsolete status. Ensure datasheet alignment with LS series electrical characteristics before integration.

Selection Notes

Select this component for applications requiring isolated bus driving with tri-state control. Compare against standard 74LS125 variants for pin compatibility. Verify voltage tolerance matches system requirements of 5V logic families. Consider package availability constraints due to potential obsolescence.

Part Context

This part belongs to the widely used 74LS TTL logic family, known for speed-power optimization. The DM prefix typically denotes specific manufacturing or packaging variations. As a bus driver, it facilitates data transfer between registers and memory units in digital systems.

Replacement Considerations

Direct substitutes include SN74LS125N or MC74LS125P. Verify pinout compatibility and electrical parameters match exactly. Alternative manufacturers may offer equivalent LS-series drivers with similar functionality.