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CD74HCT138M

CD74HCT138M

Manufacturer No:

CD74HCT138M

Manufacturer:

Harris Corporation

Description:

IC DECODER/DEMUX 1X3:8 16SOIC

Datasheet:

Datasheet

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CD74HCT138M Specifications

  • Type
    Parameter
  • Supplier Device Package
    16-SOIC
  • Package / Case
    16-SOIC (0.154", 3.90mm Width)
  • Mounting Type
    Surface Mount
  • Operating Temperature
    -55°C ~ 125°C
  • Voltage - Supply
    4.5V ~ 5.5V
  • Voltage Supply Source
    Single Supply
  • Current - Output High, Low
    4mA, 4mA
  • Independent Circuits
    1
  • Circuit
    1 x 3:8
  • Type
    Decoder/Demultiplexer
  • Packaging
    Tube
  • Product Status
    Obsolete
  • Series
    74HCT
The CD74HCT138M is a 3-to-8 line decoder/demultiplexer integrated circuit chip. It is part of the HCT logic family, which combines the advantages of both TTL and CMOS logic families. The advantages and application scenarios of the CD74HCT138M are as follows:1. Versatility: The CD74HCT138M can be used as a decoder or a demultiplexer. As a decoder, it takes a binary input and activates a specific output line based on that input. As a demultiplexer, it takes a single input and routes it to one of the output lines based on the control inputs.2. High-speed operation: The HCT logic family allows for high-speed operation, making the CD74HCT138M suitable for applications where timing is critical.3. Multiple outputs: The CD74HCT138M has eight output lines, allowing it to drive multiple devices or inputs simultaneously. This makes it useful in applications where data needs to be distributed to multiple destinations.4. Enable input: The chip has an active-low enable input (E1) which can be used to enable or disable the decoder/demultiplexer function. When the enable input is high, all outputs are in a high-impedance state, which is useful when interfacing with other circuits.5. Address decoding: The CD74HCT138M is commonly used for address decoding purposes in digital systems. It can be used to select one of eight memory or peripheral devices (such as RAM, ROM, IO devices) based on the address sent by a microcontroller or other addressing circuits.6. Data demultiplexer: The chip can be used in data transmission systems where multiple data channels need to be multiplexed onto a single line and then demultiplexed at the receiving end. The CD74HCT138M can select the desired data stream based on the control inputs and route it to the corresponding output line.7. Binary-to-Octal conversion: The 3-to-8 line decoder function of the CD74HCT138M allows it to convert a 3-bit binary input into an octal (base-8) equivalent. This is useful in applications where binary data needs to be converted into octal format.Overall, the CD74HCT138M is a versatile chip that finds application in address decoding, data demultiplexing, binary-to-octal conversion, and other scenarios where multiple inputs or outputs need to be controlled based on specific logic conditions.
CD74HCT138M Relevant information