74LVC157ADB-Q100J

Signal Switches, Multiplexers, Decoders Overview

The Nexperia 74LVC157ADB-Q100J is a quad 2-input multiplexer qualified to AEC-Q100 Grade 1 standards. It operates with a supply voltage range of 1.2 V to 3.6 V and features 5 V tolerant inputs for interfacing with 5 V logic. The device includes an active LOW enable input (E) that forces outputs LOW when HIGH, and a common select input (S) determining the data source. It supports mixed 3.3 V and 5 V applications and provides ESD protection exceeding 2000 V (HBM) and 1000 V (CDM).

Signal Switches, Multiplexers, Decoders Feature Summary

• Automotive qualification in accordance with AEC-Q100 Grade 1 specifications.
• Wide supply voltage range from 1.2 V to 3.6 V with CMOS low power consumption.
• 5 V tolerant inputs allowing direct interface with TTL levels and mixed voltage environments.

Signal Switches, Multiplexers, Decoders Applications

• Translating data between 3.3 V and 5 V devices in mixed-voltage systems.
• Moving data from two groups of registers to four common output buses.
• Implementing irregular logic functions by generating specific functions of two variables.

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the exact package type against the ordering code, as the base part number covers multiple packages. Confirm the suffix 'J' corresponds to the specific tape and reel configuration required for your assembly line. Ensure the design accounts for the -40 °C to +125 °C operating temperature range specified for automotive reliability.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component for designs requiring robust automotive-grade multiplexing with wide voltage tolerance. The 5 V tolerant inputs simplify integration into legacy 5 V systems while supporting modern lower voltage logic. Consider the available package options if space constraints exist, noting that the AD variant refers to the SO16 package family within the broader product line.

Signal Switches, Multiplexers, Decoders Part Context

This device belongs to the 74LVC157A-Q100 series of quad multiplexers designed for automotive electronics. The series ensures high reliability and performance across extreme temperature ranges. It serves as a standard solution for signal routing and data selection in complex vehicle electronic architectures where voltage translation and noise immunity are critical.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The datasheet revision history indicates that the specific type number 74LVC157ADB-Q100 was removed in version 3. Designers should verify current availability and potential pin-compatible alternatives within the 74LVC157A-Q100 family, such as the APW or ABQ variants, depending on the required package style.

Signal Switches, Multiplexers, Decoders FAQ

What is the function of the enable input (E)?

The enable input (E) is active LOW. When pin E is HIGH, all outputs (1Y to 4Y) are forced LOW regardless of other input conditions.

Can this device interface directly with 5 V logic?

Yes, the device features 5 V tolerant inputs, allowing it to be driven by 5 V devices and used as a translator in mixed 3.3 V and 5 V applications.