SN54LV157A, SN74LV157A
QUADRUPLE 2 LINE TO 1 LINE DATA SELECTORS/MULTIPLEXERS
SCLS397F - APRIL 1998 - REVISED APRIL 2005
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D
2-V to 5.5-V V
CC
Operation
D
Max t
pd
of 7.5 ns at 5 V
D
Typical V
OLP
(Output Ground Bounce)
<0.8 V at V
CC
, T
A
= 25
C
D
Typical V
OHV
(Output V
OH
Undershoot)
>2.3 V at V
CC
, T
A
= 25
C
D
I
off
Supports Partial-Power-Down-Mode
Operation
D
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)
description/ordering information
The 'LV157A devices are quadruple 2-line to
1-line data selectors/multiplexers designed for
2-V to 5.5-V V
CC
operation.
These devices contain inverters and drivers to
supply full data selection to the four output gates.
A separate strobe (G) input is provided. A 4-bit
word is selected from one of two sources and is
routed to the four outputs. The 'LV157A devices
present true data.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC - D
Tube of 40
SN74LV157AD
LV157A
SOIC - D
Reel of 2500
SN74LV157ADR
LV157A
SOP - NS
Reel of 2000
SN74LV157ANSR
74LV157A
-40
C to 85
C
SSOP - DB
Reel of 2000
SN74LV157ADBR
LV157A
-40
C to 85
C
Tube of 90
SN74LV157APW
TSSOP - PW
Reel of 2000
SN74LV157APWR
LV157A
TSSOP - PW
Reel of 250
SN74LV157APWT
LV157A
TVSOP - DGV
Reel of 2000
SN74LV157ADGVR
LV157A
CDIP - J
Tube of 25
SNJ54LV157AJ
SNJ54LV157AJ
-55
C to 125
C
CFP - W
Tube of 150
SNJ54LV157AW
SNJ54LV157AW
-55 C to 125 C
LCCC - FK
Tube of 55
SNJ54LV157AFK
SNJ54LV157AFK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A/B
1A
1B
1Y
2A
2B
2Y
GND
V
CC
G
4A
4B
4Y
3A
3B
3Y
SN54LV157A . . . J OR W PACKAGE
SN74LV157A . . . D, DB, DGV, NS, OR PW PACKAGE
(TOP VIEW)
3
2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
4A
4B
NC
4Y
3A
1B
1Y
NC
2A
2B
1A
A/B
NC
3Y
3B
V
G
2Y
GND
NC
SN54LV157A . . . FK PACKAGE
(TOP VIEW)
CC
NC - No internal connection
Copyright
2005, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
SN54LV157A, SN74LV157A
QUADRUPLE 2 LINE TO 1 LINE DATA SELECTORS/MULTIPLEXERS
SCLS397F - APRIL 1998 - REVISED APRIL 2005
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
These devices are fully specified for partial-power-down applications using I
off
. The I
off
circuitry disables the
outputs, preventing damaging current backflow through the devices when they are powered down.
FUNCTION TABLE
INPUTS
OUTPUT
G
SELECT
DATA
OUTPUT
Y
G
SELECT
A/B
A
B
Y
H
X
X
X
L
L
L
L
X
L
L
L
H
X
H
L
H
X
L
L
L
H
X
H
H
logic diagram (positive logic)
Pin numbers shown are for the D, DB, DGV, J, NS, PW, and W packages.
2
3
5
6
11
10
14
13
15
1
G
A/B
4B
4A
3B
3A
2B
2A
1B
1A
4
7
9
12
1Y
2Y
3Y
4Y
SN54LV157A, SN74LV157A
QUADRUPLE 2 LINE TO 1 LINE DATA SELECTORS/MULTIPLEXERS
SCLS397F - APRIL 1998 - REVISED APRIL 2005
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range applied in high or low state, V
O
(see Notes 1 and 2)
-0.5 V to V
CC
+ 0.5 V
. . . . . . . . . .
Output voltage range applied in power-off state, V
O
(see Note 1)
-0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
(V
I
< 0)
-20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, I
OK
(V
O
< 0)
-50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, I
O
(V
O
= 0 to V
CC
)
25 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through V
CC
or GND
50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
JA
(see Note 3): D package
73
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DB package
82
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DGV package
120
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NS package
64
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package
108
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
-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.
NOTES:
1. The input and output negative-voltage ratings may be exceeded if the input and output current ratings are observed.
2. This value is limited to 5.5 V maximum.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
SN54LV157A, SN74LV157A
QUADRUPLE 2 LINE TO 1 LINE DATA SELECTORS/MULTIPLEXERS
SCLS397F - APRIL 1998 - REVISED APRIL 2005
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 4)
SN54LV157A
SN74LV157A
UNIT
MIN
MAX
MIN
MAX
UNIT
VCC
Supply voltage
2
5.5
2
5.5
V
VCC = 2 V
1.5
1.5
VIH
High-level input voltage
VCC = 2.3 V to 2.7 V
VCC
0.7
VCC
0.7
V
VIH
High-level input voltage
VCC = 3 V to 3.6 V
VCC
0.7
VCC
0.7
V
VCC = 4.5 V to 5.5 V
VCC
0.7
VCC
0.7
VCC = 2 V
0.5
0.5
VIL
Low-level input voltage
VCC = 2.3 V to 2.7 V
VCC
0.3
VCC
0.3
V
VIL
Low-level input voltage
VCC = 3 V to 3.6 V
VCC
0.3
VCC
0.3
V
VCC = 4.5 V to 5.5 V
VCC
0.3
VCC
0.3
VI
Input voltage
0
5.5
0
5.5
V
VO
Output voltage
0
VCC
0
VCC
V
VCC = 2 V
-50
-50
A
IOH
High-level output current
VCC = 2.3 V to 2.7 V
-2
-2
IOH
High-level output current
VCC = 3 V to 3.6 V
-6
-6
mA
VCC = 4.5 V to 5.5 V
-12
-12
mA
VCC = 2 V
50
50
A
IOL
Low-level output current
VCC = 2.3 V to 2.7 V
2
2
IOL
Low-level output current
VCC = 3 V to 3.6 V
6
6
mA
VCC = 4.5 V to 5.5 V
12
12
mA
VCC = 2.3 V to 2.7 V
200
0
200
t/
v
Input transition rise or fall rate
VCC = 3 V to 3.6 V
100
0
100
ns/V
t/
v
Input transition rise or fall rate
VCC = 4.5 V to 5.5 V
20
0
20
ns/V
TA
Operating free-air temperature
-55
125
-40
85
C
NOTE 4: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
SN54LV157A
SN74LV157A
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
IOH = -50
A
2 V to 5.5 V
VCC-0.1
VCC-0.1
VOH
IOH = -2 mA
2.3 V
2
2
V
VOH
IOH = -6 mA
3 V
2.48
2.48
V
IOH = -12 mA
4.5 V
3.8
3.8
IOL = 50
A
2 V to 5.5 V
0.1
0.1
VOL
IOL = 2 mA
2.3 V
0.4
0.4
V
VOL
IOL = 6 mA
3 V
0.44
0.44
V
IOL = 12 mA
4.5 V
0.55
0.55
II
VI = 5.5 V or GND
0 to 5.5 V
1
1
A
ICC
VI = VCC or GND,
IO = 0
5.5 V
20
20
A
Ioff
VI or VO = 0 to 5.5 V
0
5
5
A
Ci
VI = VCC or GND
3.3 V
1.7
1.7
pF
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
SN54LV157A, SN74LV157A
QUADRUPLE 2 LINE TO 1 LINE DATA SELECTORS/MULTIPLEXERS
SCLS397F - APRIL 1998 - REVISED APRIL 2005
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
V
CC
= 2.5 V
0.2 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25
C
SN54LV157A
SN74LV157A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
A or B
Y
7.4*
15.9*
1*
19.5*
1
19.5
tpd
A/B
Y
CL = 15 pF
7.9*
19.4*
1*
23.5*
1
23.5
ns
tpd
G
Y
CL = 15 pF
7.8*
19.8*
1*
24*
1
24
ns
A or B
Y
9.4
18.8
1
22
1
22
tpd
A/B
Y
CL = 50 pF
10.8
22.3
1
26
1
26
ns
tpd
G
Y
CL = 50 pF
9.6
22.7
1
26.5
1
26.5
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
switching characteristics over recommended operating free-air temperature range,
V
CC
= 3.3 V
0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25
C
SN54LV157A
SN74LV157A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
A or B
Y
5.2*
9.7*
1*
11.5*
1
11.5
tpd
A/B
Y
CL = 15 pF
5.8*
13.2*
1*
15.5*
1
15.5
ns
tpd
G
Y
CL = 15 pF
5.5*
13.6*
1*
16*
1
16
ns
A or B
Y
6.7
13.2
1
15
1
15
tpd
A/B
Y
CL = 50 pF
7.6
16.7
1
19
1
19
ns
tpd
G
Y
CL = 50 pF
7
17.1
1
19.5
1
19.5
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V
0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25
C
SN54LV157A
SN74LV157A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
A or B
Y
3.6*
6.4*
1*
7.5*
1
7.5
tpd
A/B
Y
CL = 15 pF
4.1*
8.1*
1*
9.5*
1
9.5
ns
tpd
G
Y
CL = 15 pF
3.8*
8.6*
1*
10*
1
10
ns
A or B
Y
4.8
8.4
1
9.5
1
9.5
tpd
A/B
Y
CL = 50 pF
5.4
10.1
1
11.5
1
11.5
ns
tpd
G
Y
CL = 50 pF
5
10.6
1
12
1
12
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
noise characteristics, V
CC
= 3.3 V, C
L
= 50 pF, T
A
= 25
C (see Note 5
)
PARAMETER
SN74LV157A
UNIT
PARAMETER
MIN
TYP
MAX
UNIT
VOL(P)
Quiet output, maximum dynamic VOL
0.3
0.8
V
VOL(V)
Quiet output, minimum dynamic VOL
-0.1
-0.8
V
VOH(V)
Quiet output, minimum dynamic VOH
3.2
V
VIH(D)
High-level dynamic input voltage
2.31
V
VIL(D)
Low-level dynamic input voltage
0.99
V
NOTE 5: Characteristics are for surface-mount packages only.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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