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DM74LS158 Datasheet PDF - Fairchild

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Part NumberDM74LS158 Fairchild
Fairchild Semiconductor Fairchild
DescriptionQuad 2-Line to 1-Line Data Selectors/Multiplexers
DM74LS158 Datasheet PDF : DM74LS158 pdf   
DM74LS157 image

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.

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

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


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DM74LS158 Quad 2-Line to 1-Line Data Selectors/Multiplexers

Other parts: 54LS157, 54LS157DMQB, 54LS157FMQB, 54LS157LMQB, 54LS158...
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