SN74HCS125QDYYRQ1

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCS125QDYYRQ1 is an automotive-grade quadruple buffer with 3-state outputs and Schmitt-trigger inputs. It operates within a supply voltage range of 2V to 6V and supports an ambient temperature range from -40°C to +125°C. The device features balanced CMOS push-pull outputs capable of ±7.8mA drive current at 6V. Typical supply current is 100nA, with input leakage current of ±100nA at 6V. Propagation delay ranges from 5ns to 39ns depending on voltage. It is housed in a 14-pin SOT-23-THIN package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Schmitt-trigger inputs provide high noise rejection and tolerance for slow or noisy signals
• Balanced CMOS push-pull outputs deliver symmetric sourcing and sinking capabilities
• Low power consumption design minimizes static current draw during operation

Buffers, Drivers, Receivers, Transceivers Applications

• Enable or disable digital signals via control logic
• Controlling indicator LEDs with sufficient drive current
• Debouncing mechanical switches to prevent signal chatter
• Eliminating slow or noisy input signals through hysteresis

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type and reel configuration. Confirm RoHS compliance status and lead finish details against the latest manufacturer orderable addendum. Ensure the component meets AEC-Q100 reliability standards for the intended automotive environment before finalizing procurement specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when system requirements demand low power consumption alongside robust noise immunity for digital signal buffering. The wide operating voltage range allows compatibility with various supply rails. Verify that the output load capacitance remains within specified limits to maintain signal integrity and switching performance characteristics.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74HCS125-Q1 family of automotive quadruple buffers. It shares functional similarities with other HCS series devices but is distinguished by its specific packaging and automotive qualification. The QDYYRQ1 designation indicates the SOT-23-THIN package variant with reel packaging.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include SN74HCS125QDRQ1 (SOIC) and SN74HCS125QBQARQ1 (WQFN). Verify pinout compatibility and thermal resistance differences when transitioning between package types. Ensure the replacement maintains the same automotive grade and electrical specifications.