74LV138DB,118

Signal Switches, Multiplexers, Decoders Overview

The Nexperia 74LV138DB,118 is a 3-to-8 line decoder and demultiplexer housed in a 16-lead SO16 (SOT109-1) plastic small outline package. It decodes three binary weighted address inputs to eight mutually exclusive active LOW outputs. The device operates on a single supply voltage ranging from 1.0 V to 5.5 V. It features three enable inputs: two active LOW (E1, E2) and one active HIGH (E3). Inputs include clamp diodes for interfacing with voltages exceeding VCC.

Signal Switches, Multiplexers, Decoders Feature Summary

• CMOS low power dissipation optimized for low voltage applications
• Direct interface capability with TTL logic levels
• Multiple input enables facilitate easy parallel expansion to larger decoders
• Robust latch-up performance exceeding 100 mA per JESD 78 Class II Level B

Signal Switches, Multiplexers, Decoders Applications

• Memory chip select decoding
• Demultiplexing data streams using enable inputs as strobes
• Parallel expansion of decoding lines up to 1-of-32 configurations

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix ',118' corresponds to the standard tube packaging format for the SO16 variant. Confirm that the required temperature range covers -40 °C to +125 °C for your application environment. Ensure design compatibility with the SOT109-1 mechanical dimensions before finalizing procurement.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a wide supply voltage range down to 1.0 V is required alongside direct TTL interfacing. The multiple enable inputs provide flexibility for system expansion compared to devices with fewer control pins. Verify that the 16-lead SOIC footprint aligns with existing PCB layout constraints.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74LV series of low-voltage CMOS logic devices manufactured by Nexperia. The 'LV' designation indicates operation down to 1.0 V, distinguishing it from standard HC or HCT families. The DB suffix specifically identifies the SO16 package type within the broader 74LV138 product family.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Public confirmed substitute part numbers include 74LV138PW,118 and MC74LVX138DTR2G.