74HC138BQ,115

Signal Switches, Multiplexers, Decoders Overview

The Nexperia 74HC138BQ,115 is a 3-to-8 line decoder and demultiplexer housed in a DHVQFN16 package (SOT763-1). It decodes three binary weighted address inputs to eight mutually exclusive active LOW outputs. The device operates on a single supply voltage ranging from 2.0 V to 6.0 V. It features three enable inputs for parallel expansion capabilities and includes input clamp diodes to interface with voltages exceeding VCC.

Signal Switches, Multiplexers, Decoders Feature Summary

• CMOS low power dissipation with high noise immunity
• Multiple enable inputs facilitate easy parallel expansion
• Demultiplexing capability using active LOW enable inputs as data strobes
• Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

Signal Switches, Multiplexers, Decoders Applications

• Memory chip select decoding
• Parallel expansion of decoder lines
• Eight output demultiplexing

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm RoHS compliance status through official documentation. Ensure the component meets the intended operating temperature range specifications before integration into the final design.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this part when a 3-to-8 decoding function is required within a compact surface-mount footprint. The DHVQFN16 package offers thermal enhancement suitable for dense PCB layouts. Verify that the logic family voltage compatibility aligns with the system's supply rails.

Signal Switches, Multiplexers, Decoders Part Context

This component belongs to the 74HC series of logic ICs manufactured by Nexperia. It functions as a standard 3-to-8 decoder/demultiplexer. The 'BQ' designation indicates the DHVQFN16 package type, distinguishing it from other package options like SO or TSSOP within the same logical family.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Public confirmed substitute: SN74HCS238BQBR.