MC74AC151, MC74ACT151
1−of−8
Decoder/Demultiplexer
The MC74AC151/74ACT151 is a high−speed 8−input digital
multiplexer. It provides, in one package, the ability to select one line of
data from up to eight sources. The MC74AC151/74ACT151 can be
used as a universal function generator to generate any logic function of
four variables. Both true and complementary outputs are provided.
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•
Outputs Source/Sink 24 mA
•
′ACT151
Has TTL Compatible Inputs
V
CC
16
I
4
15
I
5
14
I
6
13
I
7
12
S
0
11
S
1
10
S
2
9
16
1
DIP−16
N SUFFIX
CASE 648
16
1
SO−16
D SUFFIX
CASE 751B
1
I
3
2
I
2
3
I
1
4
I
0
5
Z
6
Z
7
E
8
GND
16
1
TSSOP−16
DT SUFFIX
CASE 948F
Figure 1. Pinout: 16−Lead Packages Conductors
(Top View)
PIN ASSIGNMENT
PIN
I
0
−I
7
S
0
−S
2
E
Z
Z
FUNCTION
Data Inputs
Select Inputs
Enable Input
Data Output
Inverted Data Output
16
EIAJ−16
M SUFFIX
CASE 966
1
ORDERING INFORMATION
Device
MC74AC151N
MC74ACT151N
MC74AC151D
Package
PDIP−16
PDIP−16
SOIC−16
SOIC−16
SOIC−16
SOIC−16
TSSOP−16
TSSOP−16
Shipping
25 Units/Rail
25 Units/Rail
48 Units/Rail
48 Units/Rail
2500 Tape & Reel
2500 Tape & Reel
96 Units/Rail
96 Units/Rail
TRUTH TABLE
Inputs
E
H
L
L
L
L
L
L
L
L
S
2
X
L
L
L
L
H
H
H
H
S
1
X
L
L
H
H
L
L
H
H
S
0
X
L
H
L
H
L
H
L
H
Outputs
Z
H
I
0
I
1
I
2
I
3
I
4
I
5
I
6
I
7
Z
L
I
0
I
1
I
2
I
3
I
4
I
5
I
6
I
7
MC74ACT151D
MC74AC151DR2
MC74ACT151DR2
MC74AC151DT
MC74ACT151DT
MC74AC151DTR2
TSSOP−16 2500 Tape & Reel
MC74ACT151DTR2 TSSOP−16 2500 Tape & Reel
MC74AC151M
MC74ACT151M
EIAJ−16
EIAJ−16
50 Units/Rail
50 Units/Rail
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 7 of this data sheet.
©
Semiconductor Components Industries, LLC, 2006
June, 2006
−
Rev. 6
1
Publication Order Number:
MC74AC151/D
MC74AC151, MC74ACT151
S
0
E
S
1
S
2
I
0
I
1
I
2
I
3
I
4
I
5
I
6
I
7
Z
Z
Figure 2. Logic Symbol
FUNCTIONAL DESCRIPTION
The MC74AC151/74ACT151 is a logic implementation
of a single pole, 8−position switch with the switch position
controlled by the state of three Select inputs, S
0
, S
1
, S
2
. Both
true and complementary outputs are provided. The Enable
input (E) is active LOW. When it is not activated, the
complementary output is HIGH and the true output is LOW
regardless of all other inputs. The logic function provided at
the output is:
Z = E
•
(I
0
•
S
0
•
S
1
•
S
2
+I
1
•
S
0
•
S
1
•
S
2
+
I
2
•
S
0
•
S
1
•
S
2
+I
3
•
S
0
•
S
1
•
S
2
+
I
4
•
S
0
•
S
1
•
S
2
+I
5
•
S
0
•
S
1
•
S
2
+
I
6
•
S
0
•
S
1
•
S
2
+I
7
•
S
0
•
S
1
•
S
2
)
The MC74AC151/74ACT151 provides the ability, in one
package, to select from eight sources of data or control
information. By proper manipulation of the inputs, the
MC74AC151/74ACT151 can provide any logic function of
four variables and its complement.
I
2
I
3
I
4
I
5
I
6
I
7
I
0
S
2
S
1
S
0
E
I
1
NOTE:
This diagram is provided only for the
understanding of logic operations and
should not be used to estimate propagation
delays.
Z
Z
Figure 3. Logic Diagram
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2
MC74AC151, MC74ACT151
MAXIMUM RATINGS*
Symbol
V
CC
V
IN
V
OUT
I
IN
I
OUT
I
CC
T
stg
Parameter
DC Supply Voltage (Referenced to GND)
DC Input Voltage (Referenced to GND)
DC Output Voltage (Referenced to GND)
DC Input Current, per Pin
DC Output Sink/Source Current, per Pin
DC V
CC
or GND Current per Output Pin
Storage Temperature
Value
−0.5
to +7.0
−0.5
to V
CC
+0.5
−0.5
to V
CC
+0.5
±20
±50
±50
−65
to +150
Unit
V
V
V
mA
mA
mA
°C
*Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recom-
mended Operating Conditions.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
V
IN
, V
OUT
t
r
, t
f
Supply Voltage
DC Input Voltage, Output Voltage (Ref. to GND)
Input Rise and Fall Time (Note 1)
′AC
Devices except Schmitt Inputs
Input Rise and Fall Time (Note 2)
′ACT
Devices except Schmitt Inputs
Junction Temperature (PDIP)
Operating Ambient Temperature Range
Output Current
−
High
Output Current
−
Low
V
CC
@ 3.0 V
V
CC
@ 4.5 V
V
CC
@ 5.5 V
V
CC
@ 4.5 V
V
CC
@ 5.5 V
Parameter
′AC
′ACT
Min
2.0
4.5
0
−
−
−
−
−
−
−40
−
−
Typ
5.0
5.0
−
150
40
25
10
8.0
−
25
−
−
Max
6.0
5.5
V
CC
−
−
−
−
−
140
85
−24
24
ns/V
°C
°C
mA
mA
ns/V
Unit
V
V
t
r
, t
f
T
J
T
A
I
OH
I
OL
1. V
IN
from 30% to 70% V
CC
; see individual Data Sheets for devices that differ from the typical input rise and fall times.
2. V
IN
from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.
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3
MC74AC151, MC74ACT151
DC CHARACTERISTICS
74AC
Symbol
Parameter
V
CC
(V)
T
A
= +25°C
Typ
V
IH
Minimum High Level
Input Voltage
Maximum Low Level
Input Voltage
Minimum High Level
Output Voltage
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
V
OL
Maximum Low Level
Output Voltage
3.0
4.5
5.5
3.0
4.5
5.5
I
IN
I
OLD
I
OHD
I
CC
Maximum Input
Leakage Current
†Minimum Dynamic
Output Current
Maximum Quiescent
Supply Current
5.5
5.5
5.5
5.5
1.5
2.25
2.75
1.5
2.25
2.75
2.99
4.49
5.49
−
−
−
0.002
0.001
0.001
−
−
−
−
−
−
−
74AC
T
A
=
−40°C
to
+85°C
Unit
Conditions
Guaranteed Limits
2.1
3.15
3.85
0.9
1.35
1.65
2.9
4.4
5.4
2.56
3.86
4.86
0.1
0.1
0.1
0.36
0.36
0.36
±0.1
−
−
8.0
2.1
3.15
3.85
0.9
1.35
1.65
2.9
4.4
5.4
2.46
3.76
4.76
0.1
0.1
0.1
0.44
0.44
0.44
±1.0
75
−75
80
V
V
OUT
= 0.1 V
or V
CC
−
0.1 V
V
OUT
= 0.1 V
or V
CC
−
0.1 V
I
OUT
=
−50
μA
V
IL
V
V
OH
V
V
*V
IN
= V
IL
or V
IH
−12
mA
I
OH
−24
mA
−24
mA
I
OUT
= 50
μA
V
V
*V
IN
= V
IL
or V
IH
12 mA
I
OL
24 mA
24 mA
V
I
= V
CC
, GND
V
OLD
= 1.65 V Max
V
OHD
= 3.85 V Min
V
IN
= V
CC
or GND
μA
mA
mA
μA
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
NOTE: I
IN
and I
CC
@ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V V
CC
.
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4
MC74AC151, MC74ACT151
AC CHARACTERISTICS
(For Figures and Waveforms
−
See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)
74AC
Symbol
Parameter
V
CC
*
(V)
Min
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
Propagation Delay
S
n
to Z or Z
Propagation Delay
S
n
to Z or Z
Propagation Delay
E to Z or Z
Propagation Delay
E to Z or Z
Propagation Delay
I
n
to Z or Z
Propagation Delay
I
n
to Z or Z
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.0
2.5
2.5
2.0
2.5
2.0
1.5
1.5
2.5
1.5
2.5
1.5
T
A
= +25°C
C
L
= 50 pF
Typ
11.5
8.5
12
8.5
8.0
6.0
8.5
6.5
9.5
7.0
9.5
7.0
Max
18.0
13.0
18.0
13.0
13.0
10.0
13.0
10.0
14.0
10.5
15.0
11.0
74AC
T
A
=
−40°C
to +85°C
C
L
= 50 pF
Min
3.0
2.0
2.5
1.5
2.0
1.5
1.5
1.5
2.0
1.5
2.0
1.5
Max
20.0
15.0
20.0
15.0
14.0
11.0
14.0
11.0
15.5
11.0
16.0
12.0
ns
ns
ns
ns
ns
ns
3−6
3−6
3−6
3−6
3−5
3−5
Unit
Fig.
No.
*Voltage Range 3.3 V is 3.3 V
±
0.3 V
*Voltage Range 5.0 V is 5.0 V
±
0.5 V
DC CHARACTERISTICS
74ACT
Symbol
Parameter
V
CC
(V)
T
A
= +25°C
Typ
V
IH
V
IL
V
OH
Minimum High Level
Input Voltage
Maximum Low Level
Input Voltage
Minimum High Level
Output Voltage
4.5
5.5
4.5
5.5
4.5
5.5
4.5
5.5
V
OL
Maximum Low Level
Output Voltage
4.5
5.5
4.5
5.5
I
IN
DI
CCT
I
OLD
I
OHD
I
CC
Maximum Input
Leakage Current
Additional Max. I
CC
/Input
†Minimum Dynamic
Output Current
Maximum Quiescent
Supply Current
5.5
5.5
5.5
5.5
5.5
1.5
1.5
1.5
1.5
4.49
5.49
−
−
0.001
0.001
−
−
−
0.6
−
−
−
74ACT
T
A
=
−40°C
to
+85°C
Unit
Conditions
Guaranteed Limits
2.0
2.0
0.8
0.8
4.4
5.4
3.86
4.86
0.1
0.1
0.36
0.36
±0.1
−
−
−
8.0
2.0
2.0
0.8
0.8
4.4
5.4
3.76
4.76
0.1
0.1
0.44
0.44
±1.0
1.5
75
−75
80
V
V
V
V
OUT
= 0.1 V
or V
CC
−
0.1 V
V
OUT
= 0.1 V
or V
CC
−
0.1 V
I
OUT
=
−50
μA
*V
IN
= V
IL
or V
IH
I
OH
−24
mA
−24
mA
I
OUT
= 50
μA
*V
IN
= V
IL
or V
IH
I
OL
24 mA
24 mA
V
I
= V
CC
, GND
V
I
= V
CC
−
2.1 V
V
OLD
= 1.65 V Max
V
OHD
= 3.85 V Min
V
IN
= V
CC
or GND
V
V
V
μA
mA
mA
mA
μA
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
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