D ts e t
aa h e
R c e t r lc r nc
o h se Ee to is
Ma u a t r dCo o e t
n fc u e
mp n n s
R c e tr b a d d c mp n ns ae
o h se rn e
o oet r
ma ua trd u ig ete dewaes
n fcue sn i r i/ fr
h
p rh s d f m te oiia s p l r
uc a e r
o h r n l u pi s
g
e
o R c e tr waes rce td f m
r o h se
fr e rae r
o
te oiia I. Al rce t n ae
h
r nl P
g
l e rai s r
o
d n wi tea p o a o teOC
o e t h p rv l f h
h
M.
P r aetse u igoiia fcoy
at r e td sn r n la tr
s
g
ts p o rmso R c e tr e eo e
e t rga
r o h se d v lp d
ts s lt n t g aa te p o u t
e t oui s o u rne
o
rd c
me t o e c e teOC d t s e t
es r x e d h
M aa h e.
Qu l yOv riw
ai
t
e ve
• IO- 0 1
S 90
•A 92 cr ct n
S 1 0 et ai
i
o
• Qu l e Ma ua trr Ls (
ai d
n fcues it QML MI- R -
) LP F
385
53
•C a sQ Mitr
ls
lay
i
•C a sVS a eL v l
ls
p c ee
• Qu l e S p l r Ls o D sr uos( L )
ai d u pi s it f it b tr QS D
e
i
•R c e trsacic l u pir oD A a d
o h se i
r ia s p l t L n
t
e
me t aln u t a dD A sa d r s
es lid sr n L tn ad .
y
R c e tr lcrnc , L i c mmi e t
o h se Ee t is L C s o
o
tdo
t
s p ligp o u t ta s t f c so r x e t-
u pyn rd cs h t ai y u tme e p ca
s
t n fr u lya daee u loto eoiial
i s o q ai n r q a t h s r n l
o
t
g
y
s p l db id sr ma ua trr.
u pi
e yn ut
y n fcues
T eoiia ma ua trr d ts e t c o a yn ti d c me t e e t tep r r n e
h r n l n fcue’ aa h e a c mp n ig hs o u n r cs h ef ma c
g
s
o
a ds e ic t n o teR c e tr n fcue v rino ti d vc . o h se Ee t n
n p c ai s f h o h se ma ua trd eso f hs e ie R c e tr lcr -
o
o
isg aa te tep r r n eo i s mio d co p o u t t teoiia OE s e ic -
c u rne s h ef ma c ft e c n u tr rd cs o h r n l M p c a
o
s
g
t n .T pc lv le aefr eee c p r o e o l. eti mii m o ma i m rt g
i s ‘y ia’ au s r o rfrn e up s s ny C r n nmu
o
a
r xmu ai s
n
ma b b s do p o u t h rceiain d sg , i lt n o s mpetsig
y e a e n rd c c aa tr t , e in smuai , r a l e t .
z o
o
n
© 2 1 R cetr l t n s LC Al i t R sre 0 1 2 1
0 3 ohs E cr i , L . lRg s eevd 7 1 0 3
e e oc
h
T l r m r, l s v iw wrcl . m
o e n oe p ae it w . e c o
a
e
s
o ec
74ACT11157
QUADRUPLE 2 LINE TO 1 LINE DATA SELECTOR/MULTIPLEXER
SCAS180 − D3908, SEPTEMBER 1991 − REVISED APRIL 1993
•
•
•
•
•
•
Inputs Are TTL-Voltage Compatible
Flow-Through Architecture Optimizes
PCB Layout
Center-Pin V
CC
and GND Pin Configurations
Minimize High-Speed Switching Noise
EPIC
(Enhanced-Performance Implanted
CMOS) 1-µm Process
500-mA Typical Latch-Up Immunity at 125°C
Package Options Include Plastic
Small-Outline Packages and Standard
Plastic 300-mil DIPs
DW OR N PACKAGE
(TOP VIEW)
A/B
1Y
2Y
GND
GND
GND
GND
3Y
4Y
OE
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1A
1B
2A
2B
V
CC
V
CC
3A
3B
4A
4B
description
This data selector/multiplexer contains inverters
and drivers to supply full data selection to the four
output gates. A separate output-enable (OE) input
is provided. A 4-bit word is selected from one of
two sources and is routed to the four outputs. The
74ACT11157 provides true data.
The 74ACT11157 is characterized for operation
from −40°C to 85°C.
FUNCTION TABLE
INPUTS
OE
H
L
L
L
L
A/B
X
L
L
H
H
A
X
L
H
X
X
B
X
X
X
L
H
OUTPUT
Y
L
L
H
L
H
4A
12
9
4B
EN
G1
1
1
3
MUX
2
OE
A/B
11
10
1
4Y
3B
13
2B
logic diagram (positive logic)
1A
20
2
1B
19
1Y
2A
18
3
17
2Y
3A
14
8
3Y
logic symbol
†
10
OE
A/B
1A
1B
2A
2B
3A
3B
4A
4B
20
19
18
17
14
13
12
11
9
4Y
8
3Y
2Y
1
1Y
† This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
EPIC is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
1993, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
•
•
2−1
74ACT11157
QUADRUPLE 2 LINE TO 1 LINE DATA SELECTOR/MULTIPLEXER
SCAS180 − D3908, SEPTEMBER 1991 − REVISED APRIL 1993
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage range, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Input voltage range, V
I
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to V
CC
+ 0.5 V
Output voltage range, V
O
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to V
CC
+ 0.5 V
Input clamp current, I
IK
(V
I
< 0 or V
I
> V
CC
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
20 mA
Output clamp current, I
OK
(V
O
< 0 or V
O
> V
CC
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
50 mA
Continuous output current, I
O
(V
O
= 0 to V
CC
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
50 mA
Continuous current through V
CC
or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±100
mA
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
recommended operating conditions (see Note 2)
MIN
VCC
VIH
VIL
VI
VO
IOH
IOL
∆t
/∆v
Supply voltage
High-level input voltage
Low-level input voltage
Input voltage
Output voltage
High-level output current
Low-level output current
Input transition rise or fall rate
0
−40
0
0
4.5
2
0.8
VCC
VCC
−24
24
10
85
NOM
5
MAX
5.5
UNIT
V
V
V
V
V
mA
mA
ns / V
°C
TA
Operating free-air temperature
NOTE 2: Unused or floating inputs must be held high or low.
2−2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
•
•
74ACT11157
QUADRUPLE 2 LINE TO 1 LINE DATA SELECTOR/MULTIPLEXER
SCAS180 − D3908, SEPTEMBER 1991 − REVISED APRIL 1993
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
IOH = − 50
µA
A
VOH
IOH = − 24 mA
IOH = − 75 mA†
IOL = 50
µA
A
VOL
IOL = 24 mA
IOL = 75 mA†
VI = VCC or GND
VI = VCC or GND,
One input at 3.4 V,
IO = 0
Other inputs at VCC or GND
TEST CONDITIONS
VCC
4.5 V
5.5 V
4.5 V
5.5 V
5.5 V
4.5 V
5.5 V
4.5 V
5.5 V
5.5 V
5.5 V
5.5 V
5.5 V
±
0.1
8
0.9
0.1
0.1
0.36
0.36
TA = 25°C
MIN
TYP
MAX
4.4
5.4
3.94
4.94
MIN
4.4
5.4
3.8
4.8
3.85
0.1
0.1
0.44
0.44
1.65
±1
80
1
µA
µA
mA
pF
V
V
MAX
UNIT
II
ICC
∆I
CC‡
Ci
VI = VCC or GND
5V
3
† Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.
‡ This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC.
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V
±
0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
FROM
(INPUT)
A or B
A/B
OE
TO
(OUTPUT)
Y
Y
Y
TA = 25°C
MIN
TYP
MAX
2.6
3.1
2.3
3.1
2.1
3.6
5.1
6.6
5.6
6.8
5.1
6.9
7.1
10.4
8.7
10.5
7.9
9.7
MIN
2.6
3.1
2.3
3.1
2.1
3.6
MAX
7.8
11.3
9.5
11.5
8.6
10.8
ns
ns
ns
UNIT
operating characteristics, V
CC
= 5 V, T
A
= 25
°
C
PARAMETER
Cpd
Power dissipation capacitance
TEST CONDITIONS
CL = 50 pF,
f = 1 MHz
TYP
37
UNIT
pF
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
•
•
2−3
74ACT11157
QUADRUPLE 2 LINE TO 1 LINE DATA SELECTOR/MULTIPLEXER
SCAS180 − D3908, SEPTEMBER 1991 − REVISED APRIL 1993
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
CL = 50 pF
(see Note A)
500
Ω
Output
50% VCC
Input
(see Note B)
tPLH
3V
1.5 V
1.5 V
0V
tPHL
VOH
50% VCC
VOL
LOAD CIRCUIT
VOLTAGE WAVEFORMS
NOTES: A. CL includes probe and jig capacitance.
B. Input pulses are supplied by generators having the following characteristics: PRR
≤
10 MHz, ZO = 50
Ω,
tr = 3 ns, tf = 3 ns.
C. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
2−4
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
•
•
无线连接
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
