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Home > Semiconductors > ICs > Logic ICs > FairChild 74LS253 IC 3-state Data Selector/multiplexer

FairChild 74LS253 IC 3-state Data Selector/multiplexer

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Fsc - FairChild 74Ls253 IC dual 4-input multiplexer with 3-state outputs

FairChild 74LS253 IC 3-state Data Selector/multiplexer

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FairChild 74LS253 IC 3-state Data Selector/multiplexer
Each of these Schottky-clamped data selectors/multiplex- ers contains inverters and drivers to supply fully comple- mentary, on-chip, binary decoding data selection to the AND-OR gates. Separate output control inputs are pro- vided for each of the two four-line sections. The 3-STATE outputs can interface directly with data lines of bus-organized systems. With all but one of the common outputs disabled (at a high impedance state), the low impedance of the single enabled output will drive the bus line to a HIGH or LOW logic level.

Each of these Schottky-clamped data selectors/multiplexers contains inverters and drivers to supply fully complementary, on-chip, binary decoding data selection to the AND-OR gates. Separate output control inputs are provided for each of the two four-line sections.

The three-state outputs can interface with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (at a high-impedance state) the low-impedance of the single enabled output will drive the bus line to a high or low logic level.

Features

 

  • Three-State Version of SN54/74LS153, SN54/74S153
  • Schottky-Diode-Clamped Transistors
  • Permits Multiplexing from N Lines to 1 Line
  • Performs Parallel-to Serial Conversion
  • Fully Compatible with Most TTL Circuits
  • Low Power Dissipation
    • 'LS253 … 35 mW Typical
    • 'S253 … 225 mW Typical

Additional Information

74LS253
Part # Alias: SN74LS253
Click here to Download Datasheet I
Click here to Download Datasheet II
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