74AHC138PW,112

Signal Switches, Multiplexers, Decoders Overview

The Nexperia 74AHC138PW,112 is a high-speed Si-gate CMOS 3-to-8 line decoder/demultiplexer housed in a TSSOP16 plastic thin shrink small outline package (SOT403-1). It accepts three binary weighted address inputs and provides eight mutually exclusive outputs that are LOW when selected. The device features two active LOW enable inputs and one active HIGH enable input. It operates within a supply voltage range of 2.0 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Balanced propagation delays across all logic paths
• All inputs feature Schmitt-trigger action for noise immunity
• Demultiplexing capability using enable inputs as data strobes
• Multiple input enables facilitate easy parallel expansion

Signal Switches, Multiplexers, Decoders Applications

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

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm the component status remains in production before finalizing designs. Check for any recent product change notices regarding labeling or assembly modifications. Ensure compatibility with existing JEDEC standards compliance requirements.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this part for applications requiring pin compatibility with Low Power Schottky TTL. Choose the AHC variant for CMOS input levels rather than TTL levels. Consider the TSSOP16 package for space-constrained surface mount designs. Verify operating conditions align with the specified wide temperature range.

Signal Switches, Multiplexers, Decoders Part Context

This component belongs to the 74AHC series of high-speed CMOS logic devices. It is specified in compliance with JEDEC standard No. 7A. The device is pin compatible with Low Power Schottky TTL, allowing for direct replacement in legacy designs without circuit modification.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes include the 74AHCT138PW,112 for TTL-compatible input requirements. Other package variants such as 74AHC138D,118 offer alternative form factors.