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54ACT138 - 1-of-8 Decoder/Demultiplexer

Download the 54ACT138 datasheet PDF. This datasheet also covers the 54AC138 variant, as both devices belong to the same 1-of-8 decoder/demultiplexer family and are provided as variant models within a single manufacturer datasheet.

General Description

The ’AC/’ACT138 is a high-speed 1-of-8 decoder/ demultiplexer.

This device is ideally suited for high-speed bipolar memory chip select address decoding.

Key Features

  • n n n n n n n ICC reduced by 50% Demultiplexing capability Multiple input enable for easy expansion Active LOW mutually exclusive outputs Outputs source/sink 24 mA ’ACT138 has TTL-compatible inputs Standard Microcircuit Drawing (SMD).
  • ’AC138: 5962-87622.
  • ’ACT138: 5962-87554 Logic Symbols Connection Diagrams Pin Assignment for DIP and Flatpak DS100268-1 IEEE/IEC DS100268-2 Pin Assignment for LCC DS100268-7 Pin Names A0.
  • A2 E1.
  • E2 E3 O0.
  • O7 Descripti.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (54AC138_NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
54ACT11000 QUADRUPLE 2-INPUT POSITIVE-NAND GATES Texas Instruments
54ACT11002 QUADRUPLE 2-INPUT POSITIVE-NOR GATES Texas Instruments
54ACT11010 Triple 3-Input Positive-NAND Gates Texas Instruments
54ACT11011 TRIPLE 3-INPUT POSITIVE-AND GATES Texas Instruments
54ACT11021 DUAL 4-INPUT POSITIVE-AND GATES Texas Instruments

Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
54ACT139 Dual 1-of-4 Decoder/Demultiplexer
54ACT109 Dual JK Positive Edge-Triggered Flip-Flop
54ACT112 Dual JK Negative Edge-Triggered Flip-Flop
54ACT151 8-Input Multiplexer
54ACT153 Dual 4-Input Multiplexer

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
www.DataSheet4U.com 54AC138 • 54ACT138 1-of-8 Decoder/Demultiplexer August 1998 54AC138 • 54ACT138 1-of-8 Decoder/Demultiplexer General Description The ’AC/’ACT138 is a high-speed 1-of-8 decoder/ demultiplexer. This device is ideally suited for high-speed bipolar memory chip select address decoding. The multiple input enables allow parallel expansion to a 1-of-24 decoder using just three ’AC/’ACT138 devices or a 1-of-32 decoder using four ’AC/’ACT138 devices and one inverter.