SN74F125D

Buffers, Drivers, Receivers, Transceivers Overview

The SN74F125D is a quadruple bus buffer gate featuring independent line drivers with 3-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range of 0°C to 70°C. The device provides high-level output current up to -15 mA and low-level output current up to 64 mA. Propagation delays are specified at 7.5 ns maximum from input to output and 8 ns maximum for enable/disable transitions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features four independent non-inverting buffers with dedicated output-enable inputs that disable outputs when asserted high.
• Provides 3-state outputs capable of driving bus lines or buffering memory address registers without external termination.

Buffers, Drivers, Receivers, Transceivers Applications

• Driving bus lines in digital systems
• Buffering memory address registers
• High-speed data transmission interfaces

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation, as it dictates package type, lead finish, and moisture sensitivity level. Confirm the active production status directly with Texas Instruments, as the standard tube version may be obsolete while tape-and-reel variants remain available. Ensure compliance with RoHS requirements if applicable to the design.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring fast propagation speeds and robust drive capability within a strict 5 V logic environment. The F-series technology offers superior speed compared to LS or HC families but consumes higher quiescent current. Verify that the system power supply remains stable between 4.5 V and 5.5 V to maintain electrical characteristics.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74F series of high-speed TTL logic devices manufactured by Texas Instruments. It is functionally compatible with other quadruple bus buffers in the family, such as the SN74LS125, though with significantly faster switching speeds and different power consumption profiles. The D suffix indicates a plastic small-outline integrated circuit (SOIC) package.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct functional substitutes include the SN74F125N (PDIP package) and SN74F125DR (tape and reel). For lower power alternatives, consider the SN74HC125D, noting the difference in propagation delay and drive strength.