SN54155, SN54156, SN54LS155A, SN54LS156, SN74155, SN74156,SN74LS155A, SN74LS156 DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS

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features

• 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 LargerWords
• Input Clamping Diodes Simplify System Design
• Choice of Outputs:
  • Totem Pole ('155, 'LS155A)
  • Open-Collector ('156, 'LS156)

description

These monolithic transistor-transistor-logic (TTL) circuits feature dual1-line-to-4-line demultiplexers with individual strobes and common binary-addressinputs in a single 16-pin package. When both sections are enabled by the strobes,the common binary-address inputs sequentially select and route associatedinput data to the appropriate output of each section. The individual strobespermit activating or inhibiting each of the 4-bit sections as desired. Dataapplied to input 1C is inverted at its outputs and data applied at 2C\ is not inverted through its outputs. The inverter following the 1Cdata input permits use as a 3-to-8-line decoder or 1-to-8-line demultiplexerwithout external gating. Input clamping diodes are provided on all of thesecircuits to minimize transmission-line effects and simplify system design.

View more information about generic part numbers:SN54155, SN54LS155A, SN54LS156, SN74155, SN74156, SN74LS155A, SN74LS156

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