SN74LS125AM

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS125AM is a quadruple bus buffer manufactured by Motorola, utilizing Low Power Schottky (LS) TTL technology. It features four independent non-inverting drivers with true outputs and three-state capabilities. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports an operating temperature range of 0°C to 70°C. Electrical characteristics include a maximum low-level output current of 24 mA and a high-level output current of -2.6 mA. Propagation delay is typically 18 ns at 5 V. The component is housed in a 14-pin plastic DIP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides four independent non-inverting bus buffers with true logic outputs
• Features three-state outputs controlled by active-low enable inputs for bus line isolation
• Utilizes Low Power Schottky (LS) technology for reduced power consumption while maintaining standard TTL speed

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory and signal switching applications
• Driving capacitive loads on data buses
• Isolating signals between different circuit sections

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific manufacturer marking and date code against official Motorola or NXP documentation. Confirm that the part number suffix 'AM' corresponds to the correct plastic DIP-14 package variant. Ensure compliance with RoHS directives if required, as older LS series parts may not meet current environmental standards.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring isolated bus buffering with low power dissipation. It serves as a direct replacement for other LS-series quad bus buffers with three-state outputs. Verify that the input logic levels are compatible with the driving source and that the load capacitance does not exceed the specified limits for reliable operation.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the 74LS family of digital integrated circuits, widely used in legacy and industrial digital logic designs. The SN74LS125 specifically addresses the need for buffered signal distribution on shared data lines. Its three-state feature allows multiple devices to share a common bus without electrical contention.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include SN74LS125N, SN74LS125D, and SN74LS125DR from Texas Instruments. Other manufacturers such as ON Semiconductor and Fairchild offer equivalent 74LS125 variants with identical pinouts and logical functions.