IN74HC158A
Q
UAD
2-I
NPUT
D
ATA
S
ELECTORS
/M
ULTIPLEXERS
High-Performance Silicon-Gate CMOS
The IN74HC158A is identical in pinout to the LS/ALS158. The
device inputs are compatible with standard CMOS outputs; with
pullup resistors, they are compatible with LS/ALSTTL outputs.
This device routes 2 nibbles (A or B) to a single port (Y) as
determined by the Select input. The data is presented at the
outputs in invertered form. A high level on the Output Enable input
sets all four Y outputs to a high level.
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0
µA
High Noise Immunity Characteristic of CMOS Devices
•
•
•
•
ORDERING INFORMATION
IN74HC158AN Plastic
IN74HC158AD SOIC
T
A
= -55° to 125° C for all
packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
PIN 16 =V
CC
PIN 8 = GND
Inputs
Output
Select
Enable
H
X
L
L
L
H
Outputs
Y0-Y3
H
A
0
−
A
3
B
0
−
B
3
X=don’t care
A0-A3,B0-B3=the levels of the
respective Data-Word Inputs
1
IN74HC158A
MAXIMUM RATINGS
*
Symbol
Parameter
Value
Unit
V
CC
DC Supply Voltage (Referenced to GND)
-0.5 to +7.0
V
V
IN
DC Input Voltage (Referenced to GND)
-1.5 to V
CC
+1.5
V
V
OUT
DC Output Voltage (Referenced to GND)
-0.5 to V
CC
+0.5
V
I
IN
DC Input Current, per Pin
mA
±20
I
OUT
DC Output Current, per Pin
mA
±25
I
CC
DC Supply Current, V
CC
and GND Pins
mA
±50
P
D
Power Dissipation in Still Air, Plastic DIP+
750
mW
SOIC Package+
500
Tstg
Storage Temperature
-65 to +150
°C
260
T
L
Lead Temperature, 1 mm from Case for 10
°C
Seconds
(Plastic DIP or SOIC Package)
*
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
+Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C
SOIC Package: : - 7 mW/°C from 65° to 125°C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
V
CC
DC Supply Voltage (Referenced to GND)
V
IN
, V
OUT
DC Input Voltage, Output Voltage (Referenced to
GND)
T
A
Operating Temperature, All Package Types
t
r
, t
f
Input Rise and Fall Time (Figure 1)
V
CC
=2.0 V
V
CC
=4.5 V
V
CC
=6.0 V
Min
2.0
0
-55
0
0
0
Max
6.0
V
CC
+125
1000
500
400
Unit
V
V
°C
ns
This device contains protection circuitry to guard against damage due to high static
voltages or electric fields. However, precautions must be taken to avoid applications of any voltage
higher than maximum rated voltages to this high-impedance circuit. For proper operation, V
IN
and
V
OUT
should be constrained to the range GND≤(V
IN
or V
OUT
)≤V
CC
.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or
V
CC
). Unused outputs must be left open.
2
IN74HC158A
DC ELECTRICAL CHARACTERISTICS(Voltages
Referenced to GND)
Guaranteed Limit
V
CC
Symbol Parameter
Test Conditions
V
25
°C
to
≤85 ≤125
-55°C
°C
°C
1.5
1.5
V
OUT
=0.1 V or V
CC
-0.1 V 2.0
1.5
V
IH
Minimum High-
3.15 3.15
3.15
Level Input
4.5
I
OUT
≤
20
µA
4.2
4.2
4.2
Voltage
6.0
0.5
0.5
V
OUT
=0.1 V or V
CC
-0.1 V 2.0
0.5
V
IL
Maximum Low -
1.35 1.35
1.35
Level Input
4.5
I
OUT
≤
20
µA
1.8
1.8
1.8
Voltage
6.0
1.9
1.9
V
IN
=V
IH
or V
IL
1.9
V
OH
Minimum High-
2.0
4.4
4.4
4.4
Level Output
4.5
I
OUT
≤
20
µA
5.9
5.9
5.9
Voltage
6.0
V
IN
=V
IH
or V
IL
3.7
3.84
3.98
4.5
I
OUT
≤
4.0 mA
5.2
5.34
5.48
6.0
I
OUT
≤
5.2 mA
0.1
0.1
V
IN
=V
IH
or V
IL
0.1
V
OL
Maximum Low-
2.0
0.1
0.1
0.1
Level Output
4.5
I
OUT
≤
20
µA
0.1
0.1
0.1
Voltage
6.0
V
IN
=V
IH
or V
IL
0.4
0.33
0.26
4.5
I
OUT
≤
4.0 mA
0.4
0.33
0.26
6.0
I
OUT
≤
5.2 mA
I
IN
Maximum Input
V
IN
=V
CC
or GND
6.0
±0.1
±1.0 ±1.0
Leakage Current
V
IN
=V
CC
or GND
I
CC
Maximum
6.0
4.0
40
160
Quiescent Supply I
OUT
=0µA
Current
(per Package)
Unit
V
V
V
V
µA
µA
3
IN74HC158A
AC ELECTRICAL CHARACTERISTICS(C
L
=50pF,Input t
r
=t
f
=6.0 ns)
Guaranteed Limit
V
CC
Symbol Parameter
V
25
°C ≤85°C ≤125
to
°C
-55°C
160
130
105
2.0
t
PLH
,
Maximum Propagation Delay, Input A or
32
26
21
4.5
t
PHL
B to
27
22
18
6.0
Output Y (Figures 1and 4)
165
140
110
t
PLH
,
Maximum Propagation Delay , Select to
2.0
33
28
22
t
PHL
Output Y (Figures 2 and 4)
4.5
28
24
19
6.0
150
125
100
t
PLH
,
Maximum Propagation Delay , Output
2.0
30
25
20
t
PHL
Enable to Output Y (Figures 3 and 4)
4.5
26
21
17
6.0
110
95
75
t
TLH
, t
THL
Maximum Output Transition Time, Any
2.0
22
19
15
Output (Figures 1 and 4)
4.5
19
16
13
6.0
C
IN
Maximum Input Capacitance
-
10
10
10
Power Dissipation Capacitance (Per
Package)
Used to determine the no-load dynamic
power
consumption:
2
P
D
=C
PD
V
CC
f+I
CC
V
CC
Typical @25°C,V
CC
=5.0 V
33
pF
Unit
ns
ns
ns
ns
pF
C
PD
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
Figure 3. Switching Waveforms
Figure 4. Test Circuit
4
IN74HC158A
EXPANDED LOGIC DIAGRAM
5
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