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SN74LS138DR The SN74LS138DR is a 3-line to 8-line decoder/demultiplexer from Texas Instruments. It operates from a single 4.75V to 5.25V supply.
Mfr Part #:

SN74LS138DR

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The SN74LS138DR is a 3-line to 8-line decoder/demultiplexer from Texas Instruments. It operates from a single 4.75V to 5.25V supply.
✓ Total Stock: 113,626 pcs
$ Price Range: $0.24

SN74LS138DR Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
109,576 pcs
On Request
109576 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
3,250 pcs
On Request
3250 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
800 pcs
On Request
800 pcs On Request 1 On Request On Request 16+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

SN74LS138DR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Circuit
Current
Independent Circuits
Mounting Type
Operating Temperature
Supplier Device Package
Tape & Reel
Type
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SN74LS138DR Description

Short technical summary and product information.

The Texas Instruments SN74LS138DR is a 3-line to 8-line decoder/demultiplexer designed for high-speed memory decoding and data-routing applications. This Schottky-clamped TTL MSI circuit features three enable inputs, simplifying cascading and data reception. It decodes one of eight lines based on three binary select inputs and the enable inputs, with two active-low and one active-high enable.

 

This device operates from a single supply voltage ranging from 4.75V to 5.25V and has an operating temperature range of 0°C to 70°C. It requires a low supply current and is suitable for applications requiring short propagation delay times. The SN74LS138DR is available in a 16-SOIC package, designed for surface mounting.

 

Key features include fully buffered inputs, Schottky diodes for suppressing line-ringing, and an enable input that can function as a data input for demultiplexing. These characteristics make it a reliable component for memory systems and data transmission applications where minimizing system decoding delay is crucial.

SN74LS138DR Quick Information

Product Type: Decoder/Demultiplexer
Series: 74LS
Canonical Name: SN74LS138DR 3-line to 8-line decoder/demultiplexer
Subcategory: Decoder/Demultiplexer

SN74LS138DR Compliance

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

SN74LS138DR Estimated Pricing

Qty Low High
1+ $0.24 $0.24

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

SN74LS138DR Features

  • 3-line to 8-line decoder/demultiplexer.
  • Schottky-clamped for high performance.
  • Operates from 4.75V to 5.25V single supply.
  • Surface mountable 16-SOIC package.
  • 0°C to 70°C operating temperature range.

SN74LS138DR Applications

  • High-speed memory decoding.
  • Data transmission systems.
  • Data routing applications.
  • Demultiplexing applications.

SN74LS138DR FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage for the SN74LS138DR?

The SN74LS138DR operates from a single supply voltage of 4.75V to 5.25V.

What is the operating temperature range of the SN74LS138DR?

The operating temperature range for the SN74LS138DR is 0°C to 70°C.

What package type is the SN74LS138DR supplied in?

The SN74LS138DR is supplied in a 16-SOIC package.

What is the function of the SN74LS138DR?

The SN74LS138DR is a decoder/demultiplexer.

How many independent circuits does the SN74LS138DR have?

The SN74LS138DR has 1 independent circuit.

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