dm74157 Fairchild Semiconductor, dm74157 Datasheet
dm74157
Manufacturer Part Number
dm74157
Description
Quad 2-line To 1-line Data Selectors/multiplexer
Manufacturer
Fairchild Semiconductor
Datasheet
1.DM74157.pdf
(3 pages)
© 2000 Fairchild Semiconductor Corporation
DM74157N
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.
Ordering Code:
Connection Diagram
Function Table
H
Order Number
HIGH Level, L
Strobe
H
L
L
L
L
LOW Level, X
Select
Package Number
Inputs
H
H
X
L
L
N16E
Don’t Care
A
X
H
X
X
L
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
B
H
X
X
X
L
Output Y
DS006550
H
H
L
L
L
Applications
• Expand any data input point
• Multiplex dual data buses
• Generate four functions of two variables (one variable is
• Source programmable counters
Features
Logic Diagram
common)
Buffered inputs and outputs
Typical propagation time 9 ns
Typical power dissipation 150 mW
Package Description
August 1986
Revised February 2000
www.fairchildsemi.com
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dm74157 Summary of contents
Page 1
... A separate strobe input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. Ordering Code: Order Number Package Number DM74157N N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Connection Diagram Function Table Inputs ...
Page 2
Absolute Maximum Ratings Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range Recommended Operating Conditions Symbol Parameter V Supply Voltage CC V HIGH Level Input Voltage IH V LOW Level Input Voltage IL I HIGH Level Output ...
Page 3
Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at ...