74AHCT157D,118

Signal Switches, Multiplexers, Decoders Overview

The 74AHCT157D,118 is a quad 2-input multiplexer manufactured by Nexperia. It operates within a supply voltage range of 4.5 V to 5.5 V and functions at temperatures from -40 °C to +125 °C. The device features balanced propagation delays with a maximum of 13.5 ns at 50 pF load. It utilizes an active LOW enable input (E) and a common data select input (S). Outputs are forced LOW when the enable input is HIGH.

Signal Switches, Multiplexers, Decoders Feature Summary

• Operates with TTL input levels for compatibility with Low Power Schottky TTL (LSTTL)
• Includes Schmitt-trigger action on all inputs
• Provides ESD protection exceeding 2000 V (HBM) and 1000 V (CDM)
• Supports multiple input enable for easy expansion

Signal Switches, Multiplexers, Decoders Applications

• Moving data between two groups of registers to four common output buses
• Function generator implementation
• Memory chip select decoding

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the manufacturer designation as Nexperia rather than NXP USA Inc., as the component originates from the Nexperia logic portfolio. Confirm the specific ordering suffix ',118' corresponds to the SO16 plastic small outline package (SOT109-1). Ensure compliance with the specified operating temperature range of -40 °C to +125 °C during procurement planning.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when TTL-compatible input levels are required alongside high-speed CMOS performance. The AHCT series bridges the gap between standard CMOS logic and LSTTL interfaces. Verify that the 4.5 V to 5.5 V supply voltage range aligns with the system power architecture before finalizing the design choice.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74AHC/AHCT157 family of quad 2-input multiplexers. It serves as a digital switch controlled by logic levels applied to the select input. The device implements a 4-pole, 2-position switch configuration, allowing selection between two sources of data for four independent outputs under common control.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The 74AHCT157PW,118 offers identical functionality in a TSSOP16 package. Cross-reference pinouts and thermal characteristics when substituting packages.