74HCT153D,652

Signal Switches, Multiplexers, Decoders Overview

The Nexperia 74HCT153D,652 is a dual 4-input multiplexer in the HCT logic family. It features two independent multiplexers with common data select inputs (S0, S1) and separate enable inputs. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports propagation delays of up to 21 ns. It is housed in a 16-SOIC surface-mount package and functions across an industrial temperature range of -40°C to +125°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent 4-to-1 multiplexing channels
• Common data select inputs for synchronized channel selection
• Independent active-low enable inputs for each multiplexer
• Pin-compatible with low power Schottky TTL (LSTTL)

Signal Switches, Multiplexers, Decoders Applications

• Data routing in digital communication systems
• Address decoding circuits
• Signal switching in instrumentation
• Parallel-to-serial conversion interfaces

Signal Switches, Multiplexers, Decoders Procurement Notes

This component is officially obsolete and no longer manufactured by Nexperia. Distributors may list remaining stock or alternative sources, but new production is discontinued. Verify end-of-life status directly with authorized suppliers before design finalization. Substitution planning is required for new implementations due to the lack of future supply assurance.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this part only for legacy system maintenance or repair where pin compatibility with LSTTL is critical. For new designs, consider modern equivalents from the same family or alternative manufacturers offering current availability. Ensure voltage levels match the 4.5 V to 5.5 V operating range and verify package dimensions against the 16-SOIC footprint.

Signal Switches, Multiplexers, Decoders Part Context

The 74HCT153D belongs to the widely adopted 74HCT series, known for CMOS speed with TTL-compatible inputs. This specific variant integrates two 4:1 muxes in a single 16-pin package, optimizing board space. Its obsolescence reflects typical lifecycle management in standard logic families, necessitating migration strategies for long-term product sustainability.

Signal Switches, Multiplexers, Decoders Replacement Considerations

CD74HCT153M by Texas Instruments is a confirmed public substitute. Verify pinout compatibility and electrical specifications before replacement.

Signal Switches, Multiplexers, Decoders FAQ

What is the function of the enable inputs?

The enable inputs are active-low and independently control each of the two multiplexers, allowing selective activation of either channel.

Are the data select inputs shared between channels?

Yes, both multiplexers share common data select inputs (S0 and S1) to synchronize channel selection simultaneously.