SN74HCS126QDRQ1

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCS126QDRQ1 is an automotive-grade quadruple buffer with Schmitt-trigger inputs and 3-state outputs. It operates within a supply voltage range of 2 V to 6 V and supports an ambient temperature range from -40°C to +125°C. The device features balanced CMOS outputs capable of sourcing and sinking ±7.8 mA at 6 V. Propagation delay ranges from 7 ns to 50 ns depending on the supply voltage. Input leakage current is typically ±100 nA, and supply current is typically 2 µA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Schmitt-trigger inputs provide hysteresis for noise rejection and tolerance to slow input signals
• Balanced 3-state outputs allow high-impedance control via active-high OE pins
• Qualified for automotive applications under AEC-Q100 standards
• Low power consumption with minimal static supply current

Buffers, Drivers, Receivers, Transceivers Applications

• Enable or disable digital signals in system buses
• Controlling indicator LEDs with sufficient drive capability
• Debouncing mechanical switches
• Eliminating slow or noisy input signals through Schmitt-trigger conditioning

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type (SOIC) and suffix (QDRQ1) against the orderable addendum to ensure correct manufacturing lot and material specifications. Confirm that the device status is listed as Active Production. Check the RoHS compliance and lead finish details (NIPDAU) required for your assembly process. Ensure the MSL rating aligns with your facility's moisture sensitivity handling protocols.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when driving loads require balanced source and sink currents up to 7.8 mA. The Schmitt-trigger inputs are essential for environments with significant signal noise or slow rise/fall times. Verify that the operating voltage falls within the 2 V to 6 V range. Consider the SOIC-14 package dimensions if board space constraints favor this form factor over TSSOP alternatives.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74HCS126-Q1 family of automotive logic buffers. It shares functional characteristics with other HCS series devices but is distinct in its specific output drive capabilities and Schmitt-trigger input architecture. The QDRQ1 designation indicates the SOIC package variant, distinguishing it from the PW (TSSOP) version.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HCS126QPWRQ1