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DM74ALS157SJ Datasheet

  • DM74ALS157SJ

  • Quad 1-of-2 Line Data Selector/Multiplexer

  • 6頁

  • FAIRCHILD

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DM74ALS157 鈥?DM74ALS158 Quad 1-of-2 Line Data Selector/Multiplexer
April 1984
Revised February 2000
DM74ALS157 鈥?DM74ALS158
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 ALS157 presents true data whereas the
ALS158 presents inverted data to minimize propagation
delay time.
Features
s
Switching specifications at 50 pF
s
Switching specifications guaranteed over full tempera-
ture and V
CC
range
s
Advanced oxide-isolated, ion-implanted Schottky TTL
process
s
Functionally and pin for pin compatible with Schottky
and low power Schottky TTL counterpart
s
Improved AC performance over Schottky and low power
Schottky counterparts
s
Expand any data input point
s
Multiplex dual data buses
s
General four functions of two variables (one variable is
common)
s
Source programmable counters
Ordering Code:
Order Number
DM74ALS157M
DM74ALS157SJ
DM74ALS157N
DM74ALS158N
Package Number
M16A
M16D
N16E
N16E
Package Description
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 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 鈥淴鈥?to the ordering code.
Connection Diagram
Function Table
Inputs
Strobe Select
H
L
L
L
L
X
L
L
H
H
A
X
L
H
X
X
B
X
X
X
L
H
L
L
H
L
H
Output Y
DM74ALS157 DM74ALS158
H
H
L
H
L
H
=
HIGH Level
L
=
LOW Level
X
=
Don't Care
漏 2000 Fairchild Semiconductor Corporation
DS006205
www.fairchildsemi.com

DM74ALS157SJ 產(chǎn)品屬性

  • 47

  • 集成電路 (IC)

  • 邏輯 - 信號開關(guān)，多路復(fù)用器，解碼器

  • 74ALS

  • 數(shù)據(jù)選擇器/多路復(fù)用器

  • 4 x 2:1

  • 1

  • 400µA, 8mA

  • 單電源

  • 4.5 V ~ 5.5 V

  • 0°C ~ 70°C

  • 表面貼裝

  • 16-SOIC（0.209"，5.30mm 寬）

  • 16-SOP

  • 管件

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