INTEGRATED CIRCUITS
74LV157
Quad 2-input multiplexer
Product specification
Supersedes data of 1997 May 15
IC24 Data Handbook
1998 Apr 30
Philips
Semiconductors
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
FEATURES
•
Optimized for low voltage applications: 1.0 to 3.6 V
•
Accepts TTL input levels between V
CC
= 2.7 V and V
CC
= 3.6 V
•
Typical V
OLP
(output ground bounce) < 0.8 V at V
CC
= 3.3 V,
•
Typical V
OHV
(output V
OH
undershoot) > 2 V at V
CC
= 3.3 V,
•
Output capability: standard
•
I
CC
category: MSI
DESCRIPTION
The 74LV157 is a low-voltage CMOS device and is pin and function
compatible with 74HC/HCT157.
The 74LV157 is a quad 2-input multiplexer which selects 4 bits of data
from two sources under the control of a common data select input (S).
T
amb
= 25°C
T
amb
= 25°C
The four outputs present the selected data in the true (non-inverted)
form. The enable input (E) is active LOW. When E is HIGH, all of the
outputs (1Y to 4Y) are forced LOW regardless of all other input
conditions.
Moving the data from two groups of registers to four common output
buses is a common use of the 74LV157. The state of the common
data select input (S) determines the particular register from which
the data comes. It can also be used as function generator.
The device is useful for implementing highly irregular logic by
generating any four of the 16 different functions of two variables with
one variable common.
The 74LV157 is the logic implementation of a 4-pole, 2-position
switch, where the position of the switch is determined by the logic
levels applied to S.
QUICK REFERENCE DATA
GND = 0 V; T
amb
= 25°C; t
r
= t
f
≤
2.5 ns
SYMBOL
PARAMETER
Propagation delay
nl
0
, nl
1
, to nY
E to nY
S to nY
Input capacitance
Power dissipation capacitance per gate
V
I
= GND to V
CC1
CONDITIONS
C
L
= 15 pF;
V
CC
= 3.3 V
TYPICAL
10
11
12
3.5
70
UNIT
t
PHL
/t
PLH
C
I
C
PD
ns
pF
pF
NOTES:
1. C
PD
is used to determine the dynamic power dissipation (P
D
in
µW)
P
D
= C
PD
×
V
CC2
×
f
i
)
(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz; C
L
= output load capacitance in pF;
f
o
= output frequency in MHz; V
CC
= supply voltage in V;
(C
L
×
V
CC2
×
f
o
) = sum of the outputs.
ORDERING INFORMATION
PACKAGES
16-Pin Plastic DIL
16-Pin Plastic SO
16-Pin Plastic SSOP Type II
16-Pin Plastic TSSOP Type I
TEMPERATURE RANGE
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
OUTSIDE NORTH AMERICA
74LV157 N
74LV157 D
74LV157 DB
74LV157 PW
NORTH AMERICA
74LV157 N
74LV157 D
74LV157 DB
74LV157PW DH
PKG. DWG. #
SOT38-4
SOT109-1
SOT338-1
SOT403-1
1998 Apr 30
2
853–1920 19318
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
PIN CONFIGURATION
S
1I
1I
0
1
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
E
4I
4I
0
1
LOGIC SYMBOL
2
3
5
6
11
10
14
13
1I0
1
15
S
E
1I1
2I0
2I1
3I0
3I1
4I0
4I1
1Y
2I
2I
0
1
4Y
3I
3I
0
1Y
2Y
GND
1
2Y
3Y
4Y
3Y
4
7
9
12
SV00563
SV00564
PIN DESCRIPTION
PIN
NUMBER
1
2, 5, 11, 14
3, 6, 10, 13
4, 7, 9, 12
8
15
16
SYMBOL
S
1l
0
to 4l
0
1l
1
to 4l
1
1Y to 4Y
GND
E
V
CC
FUNCTION
Common data select input
Data inputs from source 0
Data inputs from source 1
Multiplexer outputs
Ground (0 V)
Enable inputs (active LOW)
Positive supply voltage
FUNCTIONAL DIAGRAM
2
3
1I 0
1I 1
1Y
4
5
6
2I 0
2I 1
SELECTOR
MULTIPLEXER
OUTPUTS
3Y
9
2Y
7
11
10
3I 0
3I 1
4I 0
4I 1
LOGIC SYMBOL (IEEE/IEC)
1
15
G1
EN
14
13
4Y
12
S
1
E
15
2
3
5
1
1
MUX
4
SV00566
7
6
11
9
10
14
12
13
SV00565
1998 Apr 30
3
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
RECOMMENDED OPERATING CONDITIONS
SYMBOL
V
CC
V
I
V
O
T
amb
t
r
, t
f
PARAMETER
DC supply voltage
Input voltage
Output voltage
Operating ambient temperature range in free air
See DC and AC
characteristics
V
CC
= 1.0V to 2.0V
V
CC
= 2.0V to 2.7V
V
CC
= 2.7V to 3.6V
CONDITIONS
See Note 1
MIN
1.0
0
0
–40
–40
–
–
–
–
–
–
TYP
3.3
–
–
MAX
3.6
V
CC
V
CC
+85
+125
500
200
100
UNIT
V
V
V
°C
ns/V
Input rise and fall times
NOTE:
1. The LV is guaranteed to function down to V
CC
= 1.0V (input levels GND or V
CC
); DC characteristics are guaranteed from V
CC
= 1.2V to V
CC
= 3.6V.
ABSOLUTE MAXIMUM RATINGS
1, 2
In accordance with the Absolute Maximum Rating System (IEC 134).
Voltages are referenced to GND (ground = 0 V).
SYMBOL
V
CC
"I
IK
"I
OK
"I
O
"I
GND
,
"I
CC
T
stg
P
TOT
PARAMETER
DC supply voltage
DC input diode current
DC output diode current
DC output source or sink current
– standard outputs
DC V
CC
or GND current for types with
– standard outputs
Storage temperature range
Power dissipation per package
– plastic DIL
– plastic mini-pack (SO)
– plastic shrink mini-pack (SSOP and TSSOP)
for temperature range: –40 to +125°C
above +70°C derate linearly with 12 mW/K
above +70°C derate linearly with 8 mW/K
above +60°C derate linearly with 5.5 mW/K
V
I
< –0.5 or V
I
> V
CC
+ 0.5V
V
O
< –0.5 or V
O
> V
CC
+ 0.5V
–0.5V < V
O
< V
CC
+ 0.5V
CONDITIONS
RATING
–0.5 to +4.6
20
50
25
UNIT
V
mA
mA
mA
50
–65 to +150
750
500
400
mA
°C
mW
NOTES:
1. Stresses beyond those listed 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.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
1998 Apr 30
4
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions. Voltages are referenced to GND (ground = 0 V).
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
V
CC
= 1.2 V
V
IH
HIGH l
level I
l Input
t
voltage
V
CC
= 2.0 V
V
CC
= 2.7 to 3.6 V
V
CC
= 1.2 V
V
IL
LOW l
level I
l Input
t
voltage
V
CC
= 2.0 V
V
CC
= 2.7 to 3.6 V
V
CC
= 1.2 V; V
I
= V
IH
or V
IL;
–I
O
= 100µA
V
O
OH
HIGH level output
voltage; all outputs
V
CC
= 2.0 V; V
I
= V
IH
or V
IL;
–I
O
= 100µA
V
CC
= 2.7 V; V
I
= V
IH
or V
IL;
–I
O
= 100µA
V
CC
= 3.0 V; V
I
= V
IH
or V
IL;
–I
O
= 100µA
V
OH
HIGH level output
voltage;
STANDARD
outputs
V
CC
= 3.0 V; V
I
= V
IH
or V
IL;
–I
O
= 6mA
V
CC
= 1.2 V; V
I
= V
IH
or V
IL;
I
O
= 100µA
V
O
OL
LOW level output
voltage; all outputs
V
CC
= 2.0 V; V
I
= V
IH
or V
IL;
I
O
= 100µA
V
CC
= 2.7 V; V
I
= V
IH
or V
IL;
I
O
= 100µA
V
CC
= 3.0 V; V
I
= V
IH
or V
IL;
I
O
= 100µA
V
OL
LOW level output
voltage;
STANDARD
outputs
Input leakage
current
Quiescent supply
current; MSI
Additional
quiescent supply
current per input
V
CC
= 3.0 V; V
I
= V
IH
or V
IL;
I
O
= 6mA
1.8
2.5
2.8
2.40
1.2
2.0
2.7
3.0
2.82
0
0
0
0
0.25
0.2
0.2
0.2
0.40
0.2
0.2
0.2
0.50
V
V
1.8
2.5
2.8
2.20
V
V
0.9
1.4
2.0
0.3
0.6
0.8
-40°C to +85°C
TYP
1
MAX
-40°C to +125°C
MIN
0.9
1.4
2.0
0.3
0.6
0.8
V
V
MAX
UNIT
I
I
I
CC
∆I
CC
V
CC
= 3.6 V; V
I
= V
CC
or GND
V
CC
= 3.6 V; V
I
= V
CC
or GND; I
O
= 0
V
CC
= 2.7 V to 3.6 V; V
I
= V
CC
– 0.6 V
1.0
20.0
500
1.0
160
850
µA
µA
µA
NOTE:
1. All typical values are measured at T
amb
= 25°C.
1998 Apr 30
5
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