SN74LVC125ADR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC125ADR 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 accepts input voltages up to 5.5V. The device features four independent non-inverting buffers, each with its own output-enable (OE) control. Propagation delay is specified at a maximum of 4.8ns at 3.3V. It supports operating temperatures from -40°C to 85°C and -40°C to 125°C. The component is housed in a 14-pin SOIC package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features four independent line drivers with 3-state outputs for flexible bus management
• Inputs accept voltages up to 5.5V, enabling translation between 3.3V and 5V systems
• Provides separate output-enable inputs for individual control of each buffer channel

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 suffix 'ADR' corresponds to the SOIC-14 package and tape-and-reel carrier format. Confirm the temperature grade matches the required operational range, as the datasheet specifies availability for both -40°C to 85°C and -40°C to 125°C variants. Ensure compatibility with system voltage levels and check for any recent packaging or material updates via official manufacturer documentation.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing mixed-voltage environments requiring level shifting between 3.3V and 5V logic domains. The independent OE pins allow precise control over bus contention. Consider the propagation delay specifications relative to system clock speeds. Verify that the 14-pin SOIC package dimensions fit the available PCB footprint and thermal requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVC125A family of quadruple bus buffer gates. It utilizes CMOS technology to provide balanced output drive capabilities. The LVC series is designed for low-voltage applications while maintaining compatibility with higher voltage I/O standards through its 5.5V tolerant inputs.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC125ADRG3

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle power-up states?

To ensure the high-impedance state during power up or power down, the OE input should be tied to VCC through a pull-up resistor.

What is the function of the OE pin?

Each output is disabled when the associated output-enable (OE) input is high. When OE is low, the respective gate passes data from the A input to the Y output.