74AHCT157D,112

Signal Switches, Multiplexers, Decoders Overview

The Nexperia 74AHCT157D,112 is a quad 2-input multiplexer manufactured by Nexperia USA Inc. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes TTL input levels. The device features balanced propagation delays with a maximum delay of 13.5 ns at 50 pF load capacitance across the -40 °C to +125 °C temperature range. It is housed in an SO16 plastic small outline package (SOT109-1) containing 16 leads with a body width of 3.9 mm.

Signal Switches, Multiplexers, Decoders Feature Summary

• Operates with TTL input levels for direct interface with Transistor-Transistor Logic systems
• Includes Schmitt-trigger action on all inputs to improve noise immunity
• Provides multiple input enable capabilities to facilitate system expansion
• Features overvoltage tolerant inputs that accept voltages higher than the supply voltage

Signal Switches, Multiplexers, Decoders Applications

• Moving data from two groups of registers to four common output buses
• Memory chip select decoding
• Function generation for highly irregular logic implementations

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when TTL-compatible inputs are required for multiplexing applications. Ensure the operating environment stays within the specified -40 °C to +125 °C range. Confirm that the 4.5 V to 5.5 V supply voltage aligns with the system design requirements before integration.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74AHC/AHCT157 family of high-speed Si-gate CMOS devices. These components are pin compatible with Low Power Schottky TTL (LSTTL) and comply with JEDEC standard no. 7A. The AHCT variant specifically bridges CMOS performance with TTL logic level compatibility.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The 74AHCT157PW is available in a TSSOP16 package. The 74AHCT157BQ is offered in a DHVQFN16 package. Verify package dimensions and lead configurations when substituting.