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Numéro de référence | DM74157 | ||
Description | Quad 2-Line to 1-Line Data Selectors/Multiplexer | ||
Fabricant | Fairchild Semiconductor | ||
Logo | |||
1 Page
August 1986
Revised February 2000
DM74157
Quad 2-Line to 1-Line Data Selectors/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.
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 9 ns
s Typical power dissipation 150 mW
Ordering Code:
Order Number Package Number
Package Description
DM74157N
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Connection Diagram
Logic Diagram
Function Table
Inputs
Strobe
Select
AB
H X XX
L L LX
L L HX
L H XL
L H XH
H = HIGH Level, L = LOW Level, X = Don’t Care
Output Y
L
L
H
L
H
© 2000 Fairchild Semiconductor Corporation DS006550
www.fairchildsemi.com
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Pages | Pages 3 | ||
Télécharger | [ DM74157 ] |
No | Description détaillée | Fabricant |
DM74150 | Data Selectors/Multiplexers | Fairchild Semiconductor |
DM74150 | Data Selectors/Multiplexers | National Semiconductor |
DM74151A | Data Selectors/Multiplexers | National Semiconductor |
DM74153 | Dual 4-Line to 1-Line Data Selectors/Multiplexers | National Semiconductor |
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