74LVC138APW-Q100J

Signal Switches, Multiplexers, Decoders Overview

The Nexperia 74LVC138APW-Q100J is a 3-to-8 line decoder and demultiplexer with inverting outputs, qualified to AEC-Q100 Grade 1 for automotive use. It decodes three binary weighted address inputs (A0, A1, A2) to eight mutually exclusive outputs (Y0 to Y7). The device features three enable inputs: E1 and E2 are active LOW, while E3 is active HIGH. Outputs remain HIGH unless E1 and E2 are LOW and E3 is HIGH. Supply voltage ranges from 1.2 V to 3.6 V. Inputs tolerate voltages up to 5.5 V, enabling direct interface with TTL levels and mixed 3.3 V/5 V environments. Schmitt-trigger action ensures tolerance to slow input transitions.

Signal Switches, Multiplexers, Decoders Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• Demultiplexing capability via active LOW enable inputs acting as data strobes
• Overvoltage tolerant inputs allowing direct interfacing with 5 V devices
• Schmitt-trigger inputs providing noise immunity and tolerance for slow rise/fall times

Signal Switches, Multiplexers, Decoders Applications

• Memory chip select decoding
• Parallel expansion of decoders to 1-of-32 lines
• Eight-output demultiplexer configurations

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'J' against the manufacturer's current ordering information to confirm packaging details such as cut tape or reel quantities. Confirm that the TSSOP16 package variant matches the required board space constraints. Ensure the application environment stays within the specified -40 °C to +125 °C temperature range for full electrical performance guarantees.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when an inverting 3-to-8 decoder is required for automotive-grade reliability. The wide supply voltage range supports low-voltage logic systems down to 1.2 V. The ability to accept 5 V inputs makes it suitable for translating signals between 3.3 V logic cores and legacy 5 V peripherals without additional level shifting circuitry.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the Nexperia 74LVC138A-Q100 family of 3-to-8 line decoders. The 'P' designation indicates the TSSOP16 plastic thin shrink small outline package (SOT403-1). Other package options in the family include SO16 and DHVQFN16. All variants share identical electrical characteristics and functional diagrams, differing only in physical footprint and thermal properties.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct pin-compatible substitutes within the same family include 74LVC138AD-Q100 (SO16 package) and 74LVC138ABQ-Q100 (DHVQFN16 package). Cross-family replacements require verification of voltage levels, output drive strength, and enable logic polarity.