SN74HC151PWT

Overview

The SN74HC151PWT is an 8-to-1 line data selector and multiplexer from the Texas Instruments SN74HC series. It provides complete binary decoding to select one of eight data sources. The device operates within a supply voltage range of 2 V to 6 V and features low input current of 1 μA maximum. Typical propagation delay is 13 ns, with output drive capabilities of ±6 mA at 5 V. It supports operation temperatures from -40°C to +85°C and is housed in a 16-pin TSSOP package.

Feature Summary

• Provides complete binary decoding for selecting one of eight data inputs
• Features low input current and high noise immunity typical of CMOS technology
• Includes complementary outputs (Y and W) for flexible logic interfacing
• Enables or disables function via active-low strobe (G) input

Applications

• Data source selection and routing
• Demultiplexing applications
• Parallel-to-serial data conversion
• Boolean function generation

Procurement Notes

Verify the specific suffix 'PW' indicates the TSSOP-16 package and 'T' denotes tape-and-reel packaging configuration. Confirm RoHS compliance status and check for end-of-life notices as availability may vary. Ensure the ordering part number matches the required package style and reel quantity specifications before finalizing procurement.

Selection Notes

Select this component when an 8-channel multiplexer with HC logic speed and voltage compatibility is required. Compare against SN74HC151DR variants if SOIC packaging is preferred over TSSOP. Verify that the 13 ns typical delay meets system timing requirements and that the 2 V to 6 V operating range aligns with the target power supply rails.

Part Context

This device belongs to the SN74HC151 family of 8-line to 1-line data selectors. It is part of the broader 74HC logic series known for wide voltage operation and compatibility with standard TTL loads. The SN74HC151 serves as a fundamental building block for digital signal routing and data acquisition systems requiring multiple input selection.

Replacement Considerations

SN74HC151PWR is a direct replacement offering identical functionality in a tape-and-reel format. SN74HC251PW serves as a parameter-equivalent alternative but includes tri-state outputs, which may require circuit adjustments.