SN74HCS125DR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCS125DR is a quadruple buffer with 3-state outputs and Schmitt-trigger inputs manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V, featuring typical supply current of 100nA and output drive capability of ±7.8mA at 6V. The device supports an extended ambient temperature range from -40°C to +125°C. Propagation delay ranges from 5ns to 39ns depending on voltage. It is housed in a 14-pin SOIC package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Schmitt-trigger inputs provide high noise rejection and tolerance for slow or noisy input signals.
• Balanced CMOS push-pull outputs allow the device to sink and source similar currents efficiently.
• Outputs can be placed into a high-impedance state via the active-low Output Enable (OE) pin.

Buffers, Drivers, Receivers, Transceivers Applications

• Enable or disable digital signals
• Controlling indicator LEDs
• Debouncing switches

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'DR' corresponds to the SOIC-14 package and tape-and-reel carrier configuration. Confirm that the RoHS status and lead finish meet project requirements. Ensure the component falls within the recommended operating conditions regarding supply voltage and ambient temperature limits before integration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when signal conditioning with noise immunity is required due to its Schmitt-trigger architecture. It is suitable for applications needing bus buffering with controllable 3-state outputs. Consider the wide operating voltage range and extended temperature specifications for robust system design across varying environmental conditions.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74HCS125 family of quadruple buffers. It shares functional characteristics with other variants in the series but is distinguished by its specific SOIC-14 packaging and surface-mount reel configuration. The device is designed for general-purpose logic buffering tasks requiring high noise margins.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct replacements must maintain the quadruple buffer function, 3-state outputs, and Schmitt-trigger inputs. Verify pinout compatibility and electrical parameters such as supply voltage range and propagation delay. Check for equivalent packaging options if board space constraints exist.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the Schmitt-trigger input architecture benefit signal integrity?

The Schmitt-trigger inputs provide hysteresis, making the device extremely tolerant to slow or noisy input signals compared to standard CMOS inputs.

What is the function of the OE pin?

Applying a High level to the OE pin puts the outputs into a Hi-Z (high-impedance) state, effectively disabling the buffer outputs.