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DM74LS157SJX

  

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Fairchild
Fairchild Semiconductor
DM74LS157SJX Quad 2-Line to 1-Line Data Selectors/Multiplexers

General Description
These data selectors/multiplexers contain inverters and drivers to supply full on-chip data selection to the four output gates. A separate strobe input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. The DM74LS157 presents true data where as the DM74LS158 presents inverted data to minimize propagation delay time.

Features
■ Buffered inputs and outputs
■ Typical Propagation Time
   DM74LS157 9 ns
   DM74LS158 7 ns
■ Typical Power Dissipation
   DM74LS157 49 mW
   DM74LS158 24 mW

Applications
• Expand any data input point
• Multiplex dual data buses
• Generate four functions of two variables (one variable is common)
• Source programmable counters

 


other parts : DM74LS157  DM74LS157CW  DM74LS157M  DM74LS157MX  DM74LS157N  DM74LS157SJ  DM74LS158  DM74LS158CW  DM74LS158MX  DM74LS158N  
DM74LS157SJX PDF

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