SN74HCS126QPWRQ1

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCS126QPWRQ1 is an automotive-grade quadruple buffer with Schmitt-trigger inputs and three-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 provides 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. It features low power consumption with typical supply current of 100 nA and input leakage current of ±100 nA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Schmitt-trigger inputs provide hysteresis for noise rejection and tolerance to slow or noisy signals
• Three-state outputs allow high-impedance control via active-high OE pins
• Balanced CMOS architecture ensures similar sourcing and sinking drive capabilities
• Qualified for automotive applications under AEC-Q100 standards

Buffers, Drivers, Receivers, Transceivers Applications

• Enable or disable digital signals in system controllers
• Controlling indicator LEDs
• Switch debounce circuits
• Signal conditioning to eliminate slow or noisy input transitions

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type, as the base part number covers multiple variants. Confirm the revision status aligns with production requirements. Ensure the component meets the necessary environmental specifications for the intended operating temperature range. Cross-reference the datasheet revision history for any updates to electrical characteristics or pin configurations before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when driving loads requiring up to ±7.8 mA output current at 6 V. Use it for applications needing signal isolation or bus management due to the three-state capability. Choose this over standard buffers if the input environment contains significant noise or slow transition rates that require Schmitt-trigger filtering. Ensure the supply voltage remains within the 2 V to 6 V operational window.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74HCS126-Q1 family of automotive logic devices. It is manufactured by Texas Instruments and utilizes a TSSOP-14 package. The component is designed for high-reliability environments, adhering to strict automotive qualification standards. It serves as a non-inverting buffer, performing the Boolean function Y = A.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HCS126QDRQ1 (SOIC-14 package variant)