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DM74LS158M fiches techniques PDF

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

Numéro de référence DM74LS158M
Description Quad 2-Line to 1-Line Data Selectors/Multiplexers
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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DM74LS158M fiche technique
September 1986
Revised April 2000
DM74LS157 • DM74LS158
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 out-
put 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 whereas
the DM74LS158 presents inverted data to minimize propa-
gation delay time.
Applications
• Expand any data input point
• Multiplex dual data buses
• Generate four functions of two variables
(one variable is common)
• Source programmable counters
Features
s Buffered inputs and outputs
s Typical Propagation Time
DM74LS157 9 ns
DM74LS158 7 ns
s Typical Power Dissipation
DM74LS157 49 mW
DM74LS158 24 mW
Ordering Code:
Order Number Package Number
Package Description
DM74LS157M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74LS157SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
DM74LS157N
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
DM74LS158M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74LS158N
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagrams
DM74LS157
DM74LS158
© 2000 Fairchild Semiconductor Corporation DS006396
www.fairchildsemi.com

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