DM74LS157 Fairchild Semiconductor, DM74LS157 Datasheet

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DM74LS157

Manufacturer Part Number
DM74LS157
Description
Quad 2-Line to 1-Line Data Selectors/Multiplexers
Manufacturer
Fairchild Semiconductor
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DM74LS157M
Manufacturer:
NS/国半
Quantity:
20 000
Part Number:
DM74LS157N
Manufacturer:
NS/国半
Quantity:
20 000
© 2000 Fairchild Semiconductor Corporation
DM74LS157M
DM74LS157SJ
DM74LS157N
DM74LS158M
DM74LS158N
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.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagrams
Order Number
Package Number
DM74LS157
M16A
M16D
M16A
N16E
N16E
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
DS006396
Applications
• Expand any data input point
• Multiplex dual data buses
• Generate four functions of two variables
• Source programmable counters
Features
(one variable is common)
Buffered inputs and outputs
Typical Propagation Time
Typical Power Dissipation
DM74LS157 9 ns
DM74LS158 7 ns
DM74LS157 49 mW
DM74LS158 24 mW
Package Description
DM74LS158
September 1986
Revised April 2000
www.fairchildsemi.com

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DM74LS157 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. The DM74LS157 presents true data whereas the DM74LS158 presents inverted data to minimize propa- gation delay time. ...

Page 2

... Function Table Strobe Select HIGH Level L LOW Level X Don’t Care Logic Diagrams DM74LS157 www.fairchildsemi.com Inputs Output DM74LS157 DM74LS158 DM74LS158 ...

Page 3

... Absolute Maximum Ratings Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range DM74LS157 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 Current OH I LOW Level Output Current ...

Page 4

DM74LS158 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 Current OH I LOW Level Output Current OL T Free Air Operating Temperature A ...

Page 5

Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow Package Number M16A 5 www.fairchildsemi.com ...

Page 6

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide www.fairchildsemi.com Package Number M16D 6 ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 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 ...

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