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74LS155 The 74LS155 is a dual 1-of-4 decoder and demultiplexer from Texas Instruments. It features complementary outputs and requires an active-low strobe input.
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74LS155

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The 74LS155 is a dual 1-of-4 decoder and demultiplexer from Texas Instruments. It features complementary outputs and requires an active-low strobe input.
✓ Total Stock: 224 pcs
$ Price Range: $1.27

74LS155 Available from 1 distributor

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✓ Non-Authorised
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Braun Electronic Components ✓
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224 pcs
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74LS155 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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74LS155 Description

Short technical summary and product information.

The 74LS155 is a versatile integrated circuit from Texas Instruments that functions as a dual 1-of-4 decoder and demultiplexer. Each of its two independent sections uses two address inputs (A and B) to select one of four outputs (Y0-Y3) which will be activated (LOW), while the other outputs remain HIGH. An active-low strobe input is present for each section to enable its operation.

 

This chip is suitable for routing a single input signal to one of several outputs based on the address inputs, making it useful in digital systems for applications such as memory addressing and signal routing. The 74LS155 operates at a nominal VCC of 5V and is available in a 16-pin package. The 74LS version can sink up to 8mA and source up to 0.4mA from an output pin.

 

It is part of the 7400 series of logic ICs and is designed for through-hole mounting.

74LS155 Quick Information

Product Type: Dual 1-of-4 Decoder/Demultiplexer
Series: 74LS
Canonical Name: 74LS155 Dual 1-of-4 Decoder/Demultiplexer
Subcategory: Decoder/Demultiplexer

74LS155 Compliance

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

74LS155 Estimated Pricing

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1+ $1.27 $1.27

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

74LS155 Features

  • Dual 1-of-4 decoder/demultiplexer.
  • Complementary outputs provided.
  • Active-low strobe input for each section.
  • Operates at 5V VCC.
  • 16-pin package for through-hole mounting.

74LS155 Applications

  • Memory addressing applications.
  • Digital signal routing.
  • Logic function implementation.
  • Address decoding circuits.

74LS155 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage for the 74LS155?

The 74LS155 operates at a nominal VCC of 5V.

What type of decoder is the 74LS155?

The 74LS155 is a dual 1-of-4 decoder and demultiplexer.

Does the 74LS155 have complementary outputs?

Yes, the 74LS155 features complementary outputs.

What is the strobe input requirement for the 74LS155?

The strobe input for each section of the 74LS155 is active-low.

What is the package type for the 74LS155?

The 74LS155 comes in a 16-pin package.

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