SN74LS253 - Dual 4-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs

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.

 

Products containing the "SN74LS253" keyword are: SN74LS253D , SN74LS253DE4 , SN74LS253DE4 , SN74LS253DG4 , SN74LS253DR , SN74LS253DR , SN74LS253DR2 , SN74LS253J , SN74LS253N , SN74LS253N , SN74LS253N. , SN74LS253ND , SN74LS253NS , SN74LS253NSR , SN74LS253NSR , SN74LS253NSRG4

• 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