Product details

Technology family LS Number of channels 2 Operating temperature range (°C) 0 to 70 Rating Catalog Supply current (max) (µA) 10000
Technology family LS Number of channels 2 Operating temperature range (°C) 0 to 70 Rating Catalog Supply current (max) (µA) 10000
SOIC (D) 16 59.4 mm² (9.9 mm × 6 mm) PDIP (N) 16 181.42 mm² (19.3 mm × 9.4 mm) SOP (NS) 16 79.56 mm² (10.2 mm × 7.8 mm)
  • Applications:
    • Dual 2-to 4-Line Decoder
    • Dual 1-to 4-Line Demultiplexer
    • 3-to 8-Line Decoder
    • 1-to 8-Line Demultiplexer
  • Individual Strobes Simplify Cascading for Decoding or Demultiplexing Larger Words
  • Input Clamping Diodes Simplify System Design
  • Choice of Outputs:
    • Totem Pole ('155, 'LS155A)
    • Open-Collector ('156, 'LS156)

 

  • Applications:
    • Dual 2-to 4-Line Decoder
    • Dual 1-to 4-Line Demultiplexer
    • 3-to 8-Line Decoder
    • 1-to 8-Line Demultiplexer
  • Individual Strobes Simplify Cascading for Decoding or Demultiplexing Larger Words
  • Input Clamping Diodes Simplify System Design
  • Choice of Outputs:
    • Totem Pole ('155, 'LS155A)
    • Open-Collector ('156, 'LS156)

 

These monolithic transistor-transistor-logic (TTL) circuits feature dual 1-line-to-4-line demultiplexers with individual strobes and common binary-address inputs in a single 16-pin package. When both sections are enabled by the strobes, the common binary-address inputs sequentially select and route associated input data to the appropriate output of each section. The individual strobes permit activating or inhibiting each of the 4-bit sections as desired. Data applied to input 1C is inverted at its outputs and data applied at 2C\ is not inverted through its outputs. The inverter following the 1C data input permits use as a 3-to-8-line decoder or 1-to-8-line demultiplexer without external gating. Input clamping diodes are provided on all of these circuits to minimize transmission-line effects and simplify system design.

 

These monolithic transistor-transistor-logic (TTL) circuits feature dual 1-line-to-4-line demultiplexers with individual strobes and common binary-address inputs in a single 16-pin package. When both sections are enabled by the strobes, the common binary-address inputs sequentially select and route associated input data to the appropriate output of each section. The individual strobes permit activating or inhibiting each of the 4-bit sections as desired. Data applied to input 1C is inverted at its outputs and data applied at 2C\ is not inverted through its outputs. The inverter following the 1C data input permits use as a 3-to-8-line decoder or 1-to-8-line demultiplexer without external gating. Input clamping diodes are provided on all of these circuits to minimize transmission-line effects and simplify system design.

 

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Technical documentation

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* Data sheet Dual 2-Line To 4-Line Decoders/Demultiplexers datasheet Mar 1, 1988

Design & development

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Evaluation board

14-24-LOGIC-EVM — Logic product generic evaluation module for 14-pin to 24-pin D, DB, DGV, DW, DYY, NS and PW packages

The 14-24-LOGIC-EVM evaluation module (EVM) is designed to support any logic device that is in a 14-pin to 24-pin D, DW, DB, NS, PW, DYY or DGV package,

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SOIC (D) 16 Ultra Librarian
PDIP (N) 16 Ultra Librarian
SOP (NS) 16 Ultra Librarian

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