September 1983
Revised February 1999
MM74HC151 8-Channe
l Digi
tal
Mul
t
i
p
le
xer
1999 Fairchild Semiconductor Corporation
DS005313.prf
www.fairchildsemi.com
MM74HC151
8-Channel Digital Multiplexer
General Description
The MM74HC151 high speed Digital multiplexer utilizes
advanced silicon-gate CMOS technology. Along with the
high noise immunity and low power dissipation of standard
CMOS integrated circuits, it possesses the ability to drive
10 LS-TTL loads. The MM74HC151 selects one of the 8
data sources, depending on the address presented on the
A, B, and C inputs. It features both true (Y) and comple-
ment (W) outputs. The STROBE input must be at a low
logic level to enable this multiplexer. A high logic level at
the STROBE forces the W output HIGH and the Y output
LOW.
The 74HC logic family is functionally as well as pin-out
compatible with the standard 74LS logic family. All inputs
are protected from damage due to static discharge by inter-
nal diode clamps to V
CC
and ground.
Features
s
Typical propagation delay data select to output Y: 26 ns
s
Wide operating supply voltage range: 26V
s
Low input current: 1
A maximum
s
Low quiescent supply current: 80
A maximum (74HC)
s
High output drive current: 4 mA minimum
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.
Connection Diagram
Pin Assignments for DIP, SOIC, SOP and TSSOP
Top View
Truth Table
H
=
HIGH Level, L
=
LOW Level, X
=
Don't Care
D0, D1...D7
=
the level of the respective D input
Order Number
Package Number
Package Description
MM74HC151M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
MM74HC151SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MM74HC151MTC
MTC16
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
MM74HC151N
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Inputs
Outputs
Select
Strobe
C
B
A
S
Y
W
X
X
X
H
L
H
L
L
L
L
D0
D0
L
L
H
L
D1
D1
L
H
L
L
D2
D2
L
H
H
L
D3
D3
H
L
L
L
D4
D4
H
L
H
L
D5
D5
H
H
L
L
D6
D6
H
H
H
L
D7
D7
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2
MM
74HC151
Logic Diagram
3
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MM74HC151
Absolute Maximum Ratings
(Note 1)
(Note 2)
Recommended Operating
Conditions
Note 1: Absolute Maximum Ratings are those values beyond which dam-
age to the device may occur.
Note 2: Unless otherwise specified all voltages are referenced to ground.
Note 3: Power Dissipation temperature derating -- plastic "N" package:
-
12 mW/
C from 65
C to 85
C.
DC Electrical Characteristics
(Note 4)
Note 4: For a power supply of 5V
10% the worst case output voltages (V
OH
, and V
OL
) occur for HC at 4.5V. Thus the 4.5V values should be used when
designing with this supply. Worst case V
IH
and V
IL
occur at V
CC
=
5.5V and 4.5V respectively. (The V
IH
value at 5.5V is 3.85V.) The worst case leakage cur-
rent (I
IN
, I
CC
, and I
OZ
) occur for CMOS at the higher voltage and so the 6.0V values should be used.
Supply Voltage (V
CC
)
-
0.5 to
+
7.0V
DC Input Voltage (V
IN
)
-
1.5 to V
CC
+
1.5V
DC Output Voltage (V
OUT
)
-
0.5 to V
CC
+
0.5V
Clamp Diode Current (I
IK
, I
OK
)
20 mA
DC Output Current, per pin (I
OUT
)
25 mA
DC V
CC
or GND Current, per pin (I
CC
)
50 mA
Storage Temperature Range (T
STG
)
-
65
C to
+
150
C
Power Dissipation (P
D
)
(Note 3)
600 mW
S.O. Package only
500 mW
Lead Temperature (T
L
)
260
C
(Soldering 10 seconds)
Min
Max
Units
Supply Voltage (V
CC
)
2
6
V
DC Input or Output Voltage
0
V
CC
V
(V
IN
, V
OUT
)
Operating Temperature Range (T
A
)
-
40
+
85
C
Input Rise or Fall Times
(t
r
, t
f
) V
CC
=
2.0V
1000
ns
V
CC
=
4.5V
500
ns
V
CC
=
6.0V
400
ns
Symbol
Parameter
Conditions
V
CC
T
A
=
25
C
T
A
=
-
40 to 85
C T
A
=
-
55 to 125
C
Units
Typ
Guaranteed Limits
V
IH
Minimum HIGH Level
2.0V
1.5
1.5
1.5
V
Input Voltage
4.5V
3.15
3.15
3.15
V
6.0V
4.2
4.2
4.2
V
V
IL
Maximum LOW Level
2.0V
0.5
0.5
0.5
V
Input Voltage
4.5V
1.35
1.35
1.35
V
6.0V
1.8
1.8
1.8
V
V
OH
Minimum HIGH Level
V
IN
=
V
IH
or V
IL
Output Voltage
|I
OUT
|
20
A
2.0V
2.0
1.9
1.9
1.9
V
4.5V
4.5
4.4
4.4
4.4
V
6.0V
6.0
5.9
5.9
5.9
V
V
IN
=
V
IH
or V
IL
|I
OUT
|
4.0 mA
4.5V
4.2
3.98
3.84
3.7
V
|I
OUT
|
5.2 mA
6.0V
5.7
5.48
5.34
5.2
V
V
OL
Maximum LOW Level
V
IN
=
V
IH
or V
IL
Output Voltage
|I
OUT
|
20
A
2.0V
0
0.1
0.1
0.1
V
4.5V
0
0.1
0.1
0.1
V
6.0V
0
0.1
0.1
0.1
V
V
IN
=
V
IH
or V
IL
|I
OUT
|
4.0 mA
4.5V
0.2
0.26
0.33
0.4
V
|I
OUT
|
5.2 mA
6.0V
0.2
0.26
0.33
0.4
V
I
IN
Maximum Input
V
IN
=
V
CC
or GND
6.0V
0.1
1.0
1.0
A
Current
I
CC
Maximum Quiescent
V
IN
=
V
CC
or GND
6.0V
8.0
80
160
A
Supply Current
I
OUT
=
0
A
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4
MM
74HC151
AC Electrical Characteristics
V
CC
=
5V, T
A
=
25
C, C
L
=
15 pF, t
r
=
t
f
=
6 ns
AC Electrical Characteristics
C
L
=
50 pF, t
r
=
t
f
=
6 ns (unless otherwise specified)
Note 5: C
PD
determines the no load dynamic power consumption, P
D
=
C
PD
V
CC
2
f
+
I
CC
V
CC
, and the no load dynamic current consumption,
I
S
=
C
PD
V
CC
f
+
I
CC
.
Symbol
Parameter
Conditions
Typ
Guaranteed
Units
Limit
t
PHL
, t
PLH
Maximum Propagation Delay
26
35
ns
A, B or C to Y
t
PHL
, t
PLH
Maximum Propagation Delay
27
35
ns
A, B or C to W
t
PHL
, t
PLH
Maximum Propagation Delay
22
29
ns
Any D to Y
t
PHL
, t
PLH
Maximum Propagation Delay
24
32
ns
any D to W
t
PHL
, t
PLH
Maximum Propagation Delay
17
23
ns
Strobe to Y
t
PHL
, t
PLH
Maximum Propagation Delay
16
21
ns
Strobe to W
Symbol
Parameter
Conditions
V
CC
T
A
=
25
C
T
A
=
-
40 to 85
C T
A
=
-
55 to 125
C
Units
Typ
Guaranteed Limits
t
PHL
, t
PLH
Maximum Propagation Delay
2.0V
90
205
256
300
ns
A, B or C to Y
4.5V
31
41
51
60
ns
6.0V
26
35
44
51
ns
t
PHL
, t
PLH
Maximum Propagation Delay
2.0V
95
205
256
300
ns
A, B or C to W
4.5V
32
41
51
60
ns
6.0V
27
35
44
51
ns
t
PHL
, t
PLH
Maximum Propagation Delay
2.0V
70
195
244
283
ns
any D to Y
4.5V
27
39
49
57
ns
6.0V
23
33
41
48
ns
t
PHL
, t
PLH
Maximum Propagation Delay
2.0V
75
185
231
268
ns
any D to W
4.5V
29
37
46
54
ns
6.0V
25
32
40
46
ns
t
PHL
, t
PLH
Maximum Propagation Delay
2.0V
50
140
175
203
ns
Strobe to Y
4.5V
21
28
35
41
ns
6.0V
18
24
30
35
ns
t
PHL
, t
PLH
Maximum Propagation Delay
2.0V
45
127
159
185
ns
Strobe to W
4.5V
20
25
32
37
ns
6.0V
17
22
28
32
ns
t
TLH
, t
THL
Maximum Output Rise
2.0V
30
75
95
110
ns
and Fall Time
4.5V
8
15
19
22
ns
6.0V
7
13
16
19
ns
C
PD
Power Dissipation
(per package)
110
pF
Capacitance (Note 5)
C
IN
Maximum Input
5
10
10
10
pF
Capacitance
5
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MM74HC151
Physical Dimensions
inches (millimeters) unless otherwise noted
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
Package Number M16A
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package Number M16D
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