SN74AHCT125PWRE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AHCT125PWRE4 is a quadruple bus buffer gate with three-state outputs manufactured by Texas Instruments. It belongs to the AHCT logic family, providing TTL-compatible inputs and CMOS outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V. It features four independent channels, each with an active-low output enable input. The component is housed in a 14-pin TSSOP package. Key electrical characteristics include a typical propagation delay of 5.5 ns at 5.5 V with a 50 pF load, and output drive capabilities of ±8 mA. Static current consumption is typically 1 µA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides four independent non-inverting bus buffers with three-state outputs controlled by active-low enable signals.
• Features TTL-compatible input thresholds allowing direct interfacing with TTL-driven systems while utilizing CMOS technology for low power consumption.
• Includes overvoltage protection on inputs and outputs, ensuring safe operation when powered down or subjected to voltages exceeding VCC.

Buffers, Drivers, Receivers, Transceivers Applications

• Clock buffering and distribution in digital systems requiring TTL compatibility.
• Data bus driving where signal isolation and high-speed transfer are necessary.
• Memory address decoding and control signal routing in embedded applications.

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the RoHS compliance status and specific environmental certifications as indicated in the official datasheet, noting that the 'E4' suffix denotes lead-free packaging. Confirm the package type is TSSOP-14 and check for any obsolescence notices or lifecycle changes from Texas Instruments before finalizing procurement plans.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when TTL-level input compatibility is required alongside CMOS performance benefits. It is suitable for designs needing four buffered channels with tri-state capability. Ensure the operating voltage remains within the 4.5 V to 5.5 V range. Consider thermal management requirements based on the TSSOP package's thermal resistance if multiple channels are heavily loaded simultaneously.

Buffers, Drivers, Receivers, Transceivers Part Context

This part is part of the SN74AHCT series, which combines the speed of AHC logic with the input compatibility of HCT logic. It serves as a standard solution for level shifting and buffering in mixed-voltage digital circuits. The RE4 suffix indicates tape and reel packaging for automated assembly processes.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include SN74AHCT125PW and SN74AHCT125PWR. Other compatible options from different manufacturers may include MC74VHCT125ADTRG, provided pinouts and electrical specifications match the design requirements.