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SN74HCT138DR The Texas Instruments SN74HCT138DR is a 3-line to 8-line decoder/demultiplexer IC. It operates within a voltage range of 4.5V to 5.5V and comes in a 16-SOIC package.
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SN74HCT138DR

Available from 5 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments SN74HCT138DR is a 3-line to 8-line decoder/demultiplexer IC. It operates within a voltage range of 4.5V to 5.5V and comes in a 16-SOIC package.
✓ Total Stock: 406,265 pcs
$ Price Range: $0.20

SN74HCT138DR Available from 5 distributors

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SN74HCT138DR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Circuit
Current
Independent Circuits
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Operating Temperature
Propagation Delay
Supplier Device Package
Supply Current
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SN74HCT138DR Description

Short technical summary and product information.

The SN74HCT138DR from Texas Instruments is a high-speed 3-line to 8-line decoder/demultiplexer designed for memory decoding and data routing applications. It features a wide operating voltage range of 4.5 V to 5.5 V, making it suitable for various system designs.

 

Key electrical characteristics include a typical propagation delay of 17 ns and a maximum supply current of 80 µA. The outputs can drive up to 10 LSTTL loads, and the device has an output drive of ±4 mA at 5 V. Input current is a low 1 µA maximum.

 

This device is available in a 16-SOIC package, designed for surface mounting. Its three enable inputs simplify cascading and data reception, contributing to efficient system decoding and minimizing overall system delay in high-performance memory systems.

SN74HCT138DR Quick Information

Product Type: Decoder/Demultiplexer
Series: SN74HCT138
Canonical Name: SN74HCT138 3-Line to 8-Line Decoder/Demultiplexer
Subcategory: 3-Line to 8-Line

SN74HCT138DR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SN74HCT138DR Estimated Pricing

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1+ $0.20 $0.20

Estimated market price range - modelled values for guidance only, not live distributor offers.

SN74HCT138DR Features

  • 3-line to 8-line decoder/demultiplexer functionality.
  • Operates from 4.5V to 5.5V supply voltage.
  • Typical propagation delay of 17 ns.
  • Outputs drive up to 10 LSTTL loads.
  • Surface mountable 16-SOIC package.

SN74HCT138DR Applications

  • High-speed memory decoding applications.
  • Data routing in electronic systems.
  • Cascading for larger decoder functions.
  • Minimizing system decoding delay.

SN74HCT138DR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the SN74HCT138DR?

The SN74HCT138DR operates from 4.5V to 5.5V.

What is the operating temperature range?

The operating temperature range is -40°C to +85°C.

What package does the SN74HCT138DR come in?

The SN74HCT138DR is supplied in a 16-SOIC surface-mount package.

What is the typical propagation delay?

The typical propagation delay is 17 ns.

What is the maximum supply current?

The maximum supply current is 80 µA.

What is the output drive capability?

The output drive is ±4 mA at 5V.

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