SN74LVC125ADE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC125ADE4 is a quadruple bus buffer gate with 3-state outputs manufactured by Texas Instruments. It operates from a supply voltage of 1.65V to 3.6V and features inputs that accept voltages up to 5.5V, enabling translation between 3.3V and 5V systems. The device provides independent output-enable (OE) control for all four buffers. It is specified for operation across temperature ranges of –40°C to 85°C and –40°C to 125°C. The maximum propagation delay is 4.8ns at 3.3V. Latch-up performance exceeds 250mA per JESD 17. The component is housed in a 14-pin SOIC package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features three-state outputs with separate output-enable inputs for each buffer
• Supports mixed-voltage environments by accepting 5.5V inputs while operating at lower supply voltages
• Provides high drive capability suitable for driving buses and loads

Buffers, Drivers, Receivers, Transceivers Applications

• Cable modem termination systems
• IP phones: wired and wireless
• Optical modules and optical networking equipment
• Telecom base band units and PBX systems
• Wireless communications testers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'E4' corresponds to the desired lead finish and environmental compliance status. Confirm the package type matches the design requirements. Check the latest Package Option Addendum for current production status and moisture sensitivity level ratings before finalizing procurement decisions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits requiring voltage translation between 3.3V and 5V logic levels. Ensure the application demands low power consumption and fast switching speeds within the specified voltage range. Consider the thermal resistance characteristics if operating at higher ambient temperatures or with significant load currents.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVC125A family of quadruple bus buffer gates. The 'E4' suffix typically denotes a lead-free and RoHS-compliant variant produced by Texas Instruments. It shares functional characteristics with other members of the LVC series but is distinguished by its specific packaging and manufacturing specifications.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC125ADG4

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle input voltages exceeding the supply voltage?

The inputs are overvoltage tolerant and can accept voltages up to 5.5V regardless of the VCC supply level, allowing safe interfacing with 5V devices.

What is the recommended configuration for unused inputs?

All unused inputs must be tied to either VCC or GND to prevent undefined operational states and excessive current consumption.