SN74HCS151QWBQBRQ1

Overview

The SN74HCS151QWBQBRQ1 is an automotive-grade 8-to-1 multiplexer featuring Schmitt-trigger inputs. It operates within a supply voltage range of 2V to 6V and supports ambient temperatures from -40°C to +125°C. The device provides complementary outputs (Y and W) controlled by three address lines (A, B, C) and an active-low strobe input (G). It utilizes a 16-pin Wettable Flank QFN package.

Feature Summary

• Schmitt-trigger inputs provide high noise immunity and tolerance for slow signal transitions.
• Balanced CMOS push-pull outputs ensure similar sourcing and sinking current capabilities.
• Wettable flank construction on the QFN package facilitates reliable soldering and automated optical inspection.

Applications

• Data selection
• Multiplexing

Procurement Notes

Verify the specific ordering suffix matches the required package type, as the SN74HCS151-Q1 family includes TSSOP, SOIC, and WQFN variants. Confirm that the wettable flank feature is present in the selected package version. Ensure the design accounts for the AEC-Q100 qualification requirements if deployed in automotive systems.

Selection Notes

Select this component when noisy environments or slow-rising signals are present due to the integrated Schmitt triggers. The wide operating voltage range accommodates various power rails. Consider the thermal resistance metrics provided for the WQFN package during layout planning to ensure junction temperature limits are not exceeded under load.

Part Context

This part belongs to the SN74HCS151-Q1 series, which extends standard logic functions to meet automotive reliability standards. The HCS designation indicates the inclusion of Schmitt-trigger inputs, distinguishing it from standard HC logic families. The Q1 suffix confirms its qualification for automotive applications.

Replacement Considerations

Direct pin-compatible replacements include other SN74HCS151-Q1 variants with different packages, such as SN74HCS151D-Q1 (SOIC) or SN74HCS151PW-Q1 (TSSOP), provided the wettable flank requirement is met or waived.