INTEGRATED CIRCUITS
74F157*,
74F157A,
74F158*,
74F158A
Data selectors/multiplexers
* Discontinued part. Please see the Discontinued Product List in Section 1, page 21.
Product specification
IC15 Data Handbook
1996 Mar 12
Philips
Semiconductors
Philips Semiconductors
Product specification
Data selectors/multiplexers
74F157A:
74F158A:
DESCRIPTION
The 74F157A is a high speed Quad 2-Input Multiplexer which
selects 4 bits of data from one of two sources under the control of a
common Select input (S). The Enable input (E) is active when Low.
When E is High, all of the outputs (Yn) are forced Low regardless of
all other input conditions.
Moving data from two registers to a common output bus is a
common use of the 74F157A. The state of the Select input
determines the particular register from which the data comes.
The device is the logic implementation of a 4-pole, 2-position switch
where the position of the switch is determined by the logic levels
supplied to the Select input.
The 74F158A is similar, but has inverting outputs (Yn).
74F157A, 74F158A
Quad 2-input data selector/multiplexer, non-inverting
Quad 2-input data selector/multiplexer, inverting
•
Industrial temperature range (–10°C to +85°C) available for
74F157A
TYPICAL
PROPAGATION
DELAY
4.6ns
4.6ns
3.7ns
3.7ns
TYPICAL
SUPPLY CURRENT
(TOTAL)
15mA
15mA
10mA
10mA
TYPE
74F157
74F157A
74F158
74F158A
ORDERING INFORMATION
ORDER CODE
DESCRIPTION
16-pin plastic DIP
16-pin plastic SO
COMMERCIAL RANGE
V
CC
= 5V
±10%,
T
amb
= 0°C to +70°C
N74F157AN, N174F158AN
N74F157AD, N74F158AD
INDUSTRIAL RANGE
V
CC
= 5V
±10%,
T
amb
= –40°C to +85°C
I74F157AN
I74F157AD
PKG. DWG. #
SOT38-4
SOT109-1
INPUT AND OUTPUT LOADING AND FAN OUT TABLE
PINS
Ina, Inb, Inc, Ind
S
E
Ya–Yd
Ya–Yd
Data inputs
Select input
Enable input
Data outputs (74F157/74F157A)
Data outputs (74F158/74F158A)
DESCRIPTION
74F (U.L.) HIGH/LOW
1.0/1.0
1.0/1.0
1.0/1.0
50/33
50/33
LOAD VALUE HIGH/LOW
20µA/0.6mA
20µA/0.6mA
20µA/0.6mA
1.0mA/20mA
1.0mA/20mA
NOTE:
One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state.
PIN CONFIGURATIONS, 74F157A
S
I0a
I1a
Ya
I0b
I1b
Yb
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
E
I0d
I1d
Yd
I0c
I1c
Yc
S
I0a
I1a
Ya
I0b
I1b
Yb
GND
74F158A
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
E
I0d
I1d
Yd
I0c
I1c
Yc
SF00215
SF00216
LOGIC SYMBOLS, 74F157A
2
3
5
6
11
10
14
13
2
74F158A
3
5
6
11
10
14
13
I0a I1a I0b
1
15
S
E
Ya
I1b
I0c
I1c
I0d I1d
1
15
S
E
I0a I1a I0b
I1b
I0c
I1c
I0d I1d
Yb
Yc
Yd
Ya
Yb
Yc
Yd
V
CC
= Pin 16
GND = Pin 8
4
7
9
12
SF00217
V
CC
= Pin 16
GND = Pin 8
4
7
9
12
SF00218
1996 Mar 12
2
853-0346 16555
Philips Semiconductors
Product specification
Data selectors/multiplexers
74F157A, 74F158A
IEEE/IEC SYMBOLS, 74F157A
1
15
G1
EN
1
15
74F158A
G1
EN
2
3
5
6
11
10
14
13
1
1
MUX
4
2
3
1
1
MUX
4
7
5
7
6
11
10
9
9
12
14
12
13
SF00219
SF00220
LOGIC DIAGRAM, 74F157A
I0a
2
I1a
3
I0b
5
I1b
6
I0c
11
I1c
10
I0d
14
I1d
13
E
15
S
1
I0a
2
I1a
3
I0b
5
I1b
6
74F158A
I0c
11
I1c
10
I0d
14
I1d
13
E
15
S
1
4
Ya
V
CC
= Pin 16
GND = Pin 8
Yb
7
Yc
9
12
Yd
Ya
4
Yb
7
Yc
9
12
Yd
SF00225
V
CC
= Pin 16
GND = Pin 8
SF00226
FUNCTION TABLE, 74F157A
INPUTS
E
H
L
L
L
L
S
X
H
H
L
L
I0n
X
X
X
L
H
I1n
X
L
H
X
X
OUTPUT
Yn
L
L
H
L
H
E
H
L
L
L
L
S
X
L
L
H
H
74F158A
INPUTS
I0n
X
L
H
X
X
I1n
X
X
X
L
H
OUTPUT
Yn
H
H
L
H
L
H = High voltage level
L = Low voltage level
X = Don’t care
H = High voltage level
L = Low voltage level
X = Don’t care
1996 Mar 12
3
Philips Semiconductors
Product specification
Data selectors/multiplexers
74F157A, 74F158A
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free-air temperature range.)
SYMBOL
V
CC
V
IN
I
IN
V
OUT
I
OUT
T
amb
b
T
stg
Supply voltage
Input voltage
Input current
Voltage applied to output in High output state
Current applied to output in Low output state
Operating free-air tem erature range
temperature
O erating
Storage temperature range
Commercial Range
Industrial Range 74F157A only
PARAMETER
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
–0.5 to V
CC
40
0 to +70
–40 to +85
–65 to +150
UNIT
V
V
mA
V
mA
°C
°C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
V
CC
V
IH
V
IL
I
IK
I
OH
I
OL
T
amb
Supply voltage
High-level input voltage
Low-level input voltage
Input clamp current
High-level output current
Low-level output current
Commercial Range
Operating free air temperature range
Industrial Range 74F157A only
0
–40
PARAMETER
MIN
4.5
2.0
0.8
–18
–1
20
70
85
°C
LIMITS
NOM
5.0
MAX
5.5
V
V
V
mA
mA
mA
UNIT
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
V
OH
V
OL
V
IK
I
I
I
IH
I
IL
I
OS
I
CC
PARAMETER
High-level out ut voltage
output
Low-level out ut voltage
output
Input clamp voltage
Input current at maximum input voltage
High-level input current
Low-level input current
Short-circuit output current
3
Su ly
Supply current (total)
4
74F157A
74F158A
TEST CONDITIONS
1
V
CC
= MIN, V
IL
= MAX
V
IH
= MIN, I
OH
= MAX
V
CC
= MIN, V
IL
= MAX
V
IH
= MIN, I
OL
= MAX
V
CC
= MIN, I
I
= I
IK
V
CC
= MAX, V
I
= 7.0V
V
CC
= MAX, V
I
= 2.7V
V
CC
= MAX, V
I
= 0.5V
V
CC
= MAX
V
CC
= MAX
–60
15.0
14.0
±10%V
CC
±5%V
CC
±10%V
CC
±5%V
CC
LIMITS
MIN
2.5
2.7
3.4
0.30
0.30
–0.73
0.50
0.50
–1.2
100
20
–0.6
–150
23.0
19.0
TYP
2
MAX
UNIT
V
V
V
µA
µA
mA
mA
mA
mA
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.
2. All typical values are at V
CC
= 5V, T
amb
= 25°C.
3. Not more than one output should be shorted at a time. For testing I
OS
, the use of high-speed test apparatus and/or sample-and-hold
techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting
of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any
sequence of parameter tests, I
OS
tests should be performed last.
4. I
CC
is measured with 4.5V applied to all inputs and all outputs open.
1996 Mar 12
4
Philips Semiconductors
Product specification
Data selectors/multiplexers
74F157A, 74F158A
AC ELECTRICAL CHARACTERISTICS FOR 74F157A AND 74F158A
LIMITS
TEST
CONDITION
V
CC
= +5.0V
T
amb
= +25°C
C
L
= 50pF
R
L
= 500Ω
MIN
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
Propagation delay
I0n, I1n to Yn
Propagation delay
E to Yn
Propagation delay
S to Yn
Propagation delay
I0n, I1n to Yn
Propagation delay
E to Yn
Propagation delay
S to Yn
74F158A
74F157A
Waveform 1
Waveform 3
Waveform 1
Waveform 2
Waveform 4
Waveform 2
3.5
2.5
6.0
4.0
5.5
4.5
3.0
1.5
4.5
5.0
4.5
4.0
TYP
4.5
3.5
7.5
5.0
7.5
6.0
4.0
2.5
5.5
6.0
6.5
5.5
MAX
6.5
5.0
9.0
6.5
10.0
7.5
6.0
4.0
7.0
7.5
8.5
7.5
V
CC
= +5.0V
±
10%
T
amb
= 0°C to +70°C
C
L
= 50pF
R
L
= 500Ω
MIN
3.0
1.5
5.5
4.0
5.0
4.0
2.5
1.0
4.0
5.0
4.0
3.5
MAX
7.0
6.0
10.5
7.0
11.0
8.5
7.0
4.5
7.5
8.0
9.5
8.0
V
CC
= +5.0V
±
10%
T
amb
= –40°C to +85°C
C
L
= 50pF
R
L
= 500Ω
MIN
3.0
1.5
5.5
4.0
5.0
4.0
—
—
—
MAX
7.5
6.5
11.0
7.5
11.5
9.0
—
—
—
ns
ns
ns
ns
ns
ns
SYMBOL
PARAMETER
UNIT
AC WAVEFORMS
For all waveforms, V
M
= 1.5V
I0n, I1n, S
V
M
t
PHL
I0n, I1n, S
V
M
t
PLH
V
M
t
PLH
V
M
t
PHL
Yn
V
M
V
M
Yn
V
M
V
M
SF00221
SF00222
Waveform 1.
Propagation Delay for Data and Select to Output
Waveform 2.
Propagation Delay for Data and Select to Output
E
V
M
t
PLH
V
M
t
PHL
E
V
M
t
PHL
V
M
t
PLH
Yn
V
M
V
M
Yn
V
M
V
M
SF00223
SF00224
Waveform 3.
Propagation Delay for Enable to Output
Waveform 4.
Propagation Delay for Enable to Output
1996 Mar 12
5
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