SN54157, SN54LS157SN54LS158, SN54S157, SN54S158,
SN74157, SN74LS157, SN74lS158, SN74S157, SN74S158
SDLS058
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORSIMUlTIPLEXERS
MARCH 1974- R VISE::J MARCH 1988
•
Buffered Inputs and Outputs
•
Three Speed/Power Ranges Available
SN54157, SNS4LS157, SN54S157,
SN54lS158.SN5-4S15S ..• J OR W PACKAGE
SN74157 ••• N PACKAGE
SN74LS157,SN74S157.
SN74l.S158.SN74S15S .•.D OR N PACKAGE
TYPICAL
TYPES
TYPICAL
POVIIEA
PROPAGATION
DISSIPATION
TIME
9 ns
1!:iQmW
AVERACE
ITOPVIEWI
cc
A/ 8
G
9 n•
49mW
1A
18
'5157
5m
250mW
1Y
48
'LS158
7 n>
24mW
2A
4Y
19SmW
2B
2Y
GND
3A
'157
'LS157
' 5158
applica1ions
•
Expand Any Data Input Point
•
Multiplex Dual Data Buses
•
Generate Four Functions of Two Variables
(One Variable Is Common)
4A
3B
3Y
SN54lS157. SN54S157, SN54lS158,
SN54S158 . .. FK PACKAGE jTOP
VIEW)
• Source Programmable Counters
description
These monolithic data :;elecrors
imultipleKers contain
inverters and drivers to supply full on·chip datil
se Ection to the four output gates. A separate strobe
input is provided. A 4-bit word is selec ted f rom one
of two sources and is routed to the four outputs. The
'1 57. 'LS 157.and 'S15 7 pr esent true data whereas
th· 'LS 158 and ·s158 pr esent inverted data to
minimize propagation delay time.
-- ·- - ·[TAO€ E SELECT
!
G
u
absolute
A lB
A
X
X
L
L
L
H
-
·--
48
NC
NC
2A
NC - No
FUNCT I ON TABLE
INI'UTS
4A
16
1Y
inttm41 connet10n
OUTPUT Y
J
'LS1S8
'157
' 157.'S157 • 'S158
II
L
l:l
X
X
H
L
X
H
L
H
X
L
L
H
H
X
H
H
L
maximum ratings over operating free-air temperature range (unless otherwise noted
Supply vol t age . Vee (See Note 1) . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...... . .. . . • . ........ . 7V
Input voltage: '157,'5158 ....... .. . ..... .. . . . ... _ . .. . . ....... . .
5. 5 V
'LS157. 'LS1 58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . 7 V
- 55 °C to 125°C
Operating free-ar temperature range: SN54'
. . . . . . . . . . .. . . . . .. . .... 0°C to 70 °C
SN 74'
Storage temperature range
. .. . .. . . . ..... . . .. .. . -65°Cto150°C
. .... .. .. .. .
NOTF 1: Voltaf.'e values ate A ith res p-ect t o net w ork ground terminal,
-
------------------------------- -----·•
PR()l)tl: rtO• UA TA .. .,.,oots CMteifl int...etia n
currut •• of Moblic:ati•date.Pr"""cts COifw• u
Of"'C:f ;l· c·.m nt
MAX.
IOL
VI
=
v
------
v
'04 v
0.8
v
1.5
.. 1.5
v
3.4
0.2
16 mA
v
2
0.8
2.4
0.2
0.4
v
3.4
04
mA
I-
40
40
1.6
30
See Note 2
1.6
-55
-20
MAX
v
-18
55
48
30
48
,,A
mA
mA
11=or condition-f. &hown a& MtN or MAX. use the apprpl"iata volue s;pe;;:ified under rscoi'Tlrne:ndad opel"at.ng condition .
iAII typical valuu are at
Vee ..
5 v. TA"" 25°C,
Not more than one ou1put should IJoe shor ed at ;etimand duration of sho r t-
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