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Teilenummer | DM74S157 |
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Beschreibung | Quad 1 of 2 Line Data Selector/Multiplexer | |
Hersteller | Fairchild Semiconductor | |
Logo | ||
Gesamt 5 Seiten August 1986
Revised April 2000
DM74S157 • DM74S158
Quad 1 of 2 Line Data Selector/Multiplexer
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 DM74S157 presents true data whereas
the DM74S158 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
DM74S157 5 ns
DM74S158 4 ns
s Typical power dissipation
DM74S157 250 mW
DM74S158 195 mW
Ordering Code:
Order Number
DM74S157N
DM74S158N
Package Number
Package Description
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Connection Diagrams
DM74S157
DM74S158
© 2000 Fairchild Semiconductor Corporation DS006470
www.fairchildsemi.com
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Seiten | Gesamt 5 Seiten | |
PDF Download | [ DM74S157 Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
DM74S151 | 1-of-8 Data Selector/Multiplexer | Fairchild Semiconductor |
DM74S153 | Dual 1-of-4 Line Data Selector/Multiplexer | Fairchild Semiconductor |
DM74S157 | Quad 1 of 2 Line Data Selector/Multiplexer | Fairchild Semiconductor |
DM74S157 | QUAD 1 OF 2 LINE DATA SELECTORS/MULTIPLEXERS | National Semiconductor |
DM74S158 | Quad 1 of 2 Line Data Selector/Multiplexer | Fairchild Semiconductor |
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