MC74ACT151D [MOTOROLA]
1-OF-8 DECODER/DEMULTIPLEXER; 1 - 8解码器/多路解复用器
| 型号： | MC74ACT151D |
| 厂家： | 
MOTOROLA |
| 描述： | 1-OF-8 DECODER/DEMULTIPLEXER |
| 文件： | 总6页 (文件大小：189K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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.
• Outputs Source/Sink 24 mA
• ′ACT151 Has TTL Compatible Inputs
N SUFFIX
CASE 648-08
PLASTIC
V
I
I
I
I
S
S
S
2
CC
16
4
5
6
7
0
1
15
14
13
12
11
10
9
PIN NAMES
I –I
Data Inputs
Select Inputs
Enable Input
Data Output
Inverted Data Output
0
7
S –S
0
2
E
Z
Z
D SUFFIX
CASE 751B-05
PLASTIC
1
2
3
4
5
Z
6
Z
7
8
I
I
I
I
0
E
GND
3
2
1
LOGIC SYMBOL
TRUTH TABLE
Inputs
Outputs
E
S
S
S
0
Z
Z
L
E
I
I
I
I
I
I
I
I
7
2
1
0
1
2
3
4
5
6
S
S
0
1
H
L
L
L
L
L
L
L
L
X
L
L
L
L
H
H
H
H
X
L
L
H
H
L
L
H
H
X
H
L
H
L
H
L
H
L
H
I
0
I
1
I
2
I
3
I
4
I
5
I
6
I
7
I
0
1
2
3
4
5
6
7
S
2
Z
Z
I
I
I
I
I
I
I
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
FACT DATA
5-1
MC74AC151 MC74ACT151
FUNCTIONAL DESCRIPTION
The MC74AC151/74ACT151 is a logic implementation of
a single pole, 8-position switch with the switch position
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
MC74AC151/74ACT151can provide any logic function of four
variables and its complement.
controlled by the state of three Select inputs, S , S , S . Both
0
1
2
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
regardlessofallotherinputs. Thelogicfunctionprovidedatthe
output is:
0•S0•S1•S2+I1•S0•S1•S +
2
Z = E•(I
I
I
I
2•S0•S1•S2+I3•S0•S1•S +
4•S0•S1•S2+I5•S0•S1•S +
6•S0•S1•S2+I7•S0•S1•S )
2
2
2
LOGIC DIAGRAM
I
I
I
I
I
I
I
I
7
0
1
2
3
4
5
6
S
2
S
1
S
0
E
Please note that this diagram is provided
only for the understanding of logic
operations and should not be used to
estimate propagation delays.
Z
Z
MAXIMUM RATINGS*
Symbol
Parameter
Value
–0.5 to +7.0
Unit
V
V
V
DC Supply Voltage (Referenced to GND)
DC Input Voltage (Referenced to GND)
DC Output Voltage (Referenced to GND)
DC Input Current, per Pin
CC
–0.5 to V
–0.5 to V
+0.5
+0.5
V
in
CC
V
out
V
CC
I
I
I
±20
mA
mA
mA
°C
in
DC Output Sink/Source Current, per Pin
±50
±50
out
CC
DC V
or GND Current per Output Pin
Storage Temperature
CC
T
stg
–65 to +150
* Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended
Operating Conditions.
FACT DATA
5-2
MC74AC151 MC74ACT151
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
2.0
4.5
0
Typ
5.0
5.0
Max
6.0
Unit
V
′AC
V
Supply Voltage
CC
′ACT
5.5
V , V
in out
DC Input Voltage, Output Voltage (Ref. to GND)
V
CC
V
V
CC
V
CC
V
CC
V
CC
V
CC
@ 3.0 V
@ 4.5 V
@ 5.5 V
@ 4.5 V
@ 5.5 V
150
40
Input Rise and Fall Time (Note 1)
′AC Devices except Schmitt Inputs
ns/V
t , t
r f
25
10
Input Rise and Fall Time (Note 2)
′ACT Devices except Schmitt Inputs
t , t
r f
ns/V
8.0
T
Junction Temperature (PDIP)
Operating Ambient Temperature Range
Output Current — High
140
85
°C
°C
J
T
A
–40
25
I
–24
24
mA
mA
OH
OL
I
Output Current — Low
1. V from 30% to 70% V ; see individual Data Sheets for devices that differ from the typical input rise and fall times.
in
CC
2. V from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.
in
DC CHARACTERISTICS
74AC
= +25°C
74AC
T
A
=
V
(V)
CC
Symbol
Parameter
Unit
Conditions
T
A
–40°C to +85°C
Typ
Guaranteed Limits
V
V
V
3.0
4.5
5.5
1.5
2.25
2.75
2.1
3.15
3.85
2.1
3.15
3.85
V
or V
= 0.1 V
Minimum High Level
Input Voltage
IH
OUT
V
V
V
– 0.1 V
CC
3.0
4.5
5.5
1.5
2.25
2.75
0.9
1.35
1.65
0.9
1.35
1.65
V
OUT
= 0.1 V
Maximum Low Level
Input Voltage
IL
or V
– 0.1 V
CC
3.0
4.5
5.5
2.99
4.49
5.49
2.9
4.4
5.4
2.9
4.4
5.4
I
= –50 µA
Minimum High Level
Output Voltage
OH
OUT
*V = V or V
IN IL IH
3.0
4.5
5.5
2.56
3.86
4.86
2.46
3.76
4.76
–12 mA
–24 mA
–24 mA
V
V
I
OH
V
OL
3.0
4.5
5.5
0.002
0.001
0.001
0.1
0.1
0.1
0.1
0.1
0.1
I = 50 µA
OUT
Maximum Low Level
Output Voltage
*V = V or V
IN IL
IH
3.0
4.5
5.5
0.36
0.36
0.36
0.44
0.44
0.44
12 mA
V
I
24 mA
24 mA
OL
I
IN
Maximum Input
Leakage Current
5.5
±0.1
±1.0
µA
V = V , GND
I
CC
I
I
I
5.5
5.5
75
mA
mA
V
V
= 1.65 V Max
†Minimum Dynamic
Output Current
OLD
OHD
CC
OLD
–75
= 3.85 V Min
OHD
Maximum Quiescent
Supply Current
5.5
8.0
80
µA
V
IN
= V or GND
CC
* 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 and I
@ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V V
.
IN CC
CC
FACT DATA
5-3
MC74AC151 MC74ACT151
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74AC
74AC
T
= –40°C
A
T
C
= +25°C
= 50 pF
V
(V)
*
Fig.
No.
A
L
CC
Symbol
Parameter
to +85°C
C
Unit
= 50 pF
L
Min
Typ
Max
Min
Max
3.3
5.0
3.0
2.5
11.5
8.5
18.0
13.0
3.0
2.0
20.0
15.0
Propagation Delay
to Z or Z
t
t
t
t
t
t
ns
ns
ns
ns
ns
ns
3-6
3-6
3-6
3-6
3-5
3-5
PLH
S
n
3.3
5.0
2.5
2.0
12
8.5
18.0
13.0
2.5
1.5
20.0
15.0
Propagation Delay
to Z or Z
PHL
PLH
PHL
PLH
PHL
S
n
3.3
5.0
2.5
2.0
8.0
6.0
13.0
10.0
2.0
1.5
14.0
11.0
Propagation Delay
E to Z or Z
3.3
5.0
1.5
1.5
8.5
6.5
13.0
10.0
1.5
1.5
14.0
11.0
Propagation Delay
E to Z or Z
3.3
5.0
2.5
1.5
9.5
7.0
14.0
10.5
2.0
1.5
15.5
11.0
Propagation Delay
I
n
to Z or Z
3.3
5.0
2.5
1.5
9.5
7.0
15.0
11.0
2.0
1.5
16.0
12.0
Propagation Delay
to Z or Z
I
n
* 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
= +25°C
74ACT
T
A
=
V
(V)
CC
Symbol
Parameter
Unit
Conditions
T
A
–40°C to +85°C
Typ
Guaranteed Limits
V
V
V
4.5
5.5
1.5
1.5
2.0
2.0
2.0
2.0
V
or V
= 0.1 V
Minimum High Level
Input Voltage
IH
OUT
V
V
V
– 0.1 V
CC
4.5
5.5
1.5
1.5
0.8
0.8
0.8
0.8
V
OUT
= 0.1 V
Maximum Low Level
Input Voltage
IL
or V
– 0.1 V
CC
4.5
5.5
4.49
5.49
4.4
5.4
4.4
5.4
I
= –50 µA
Minimum High Level
Output Voltage
OH
OUT
*V = V or V
IN IL IH
4.5
5.5
3.86
4.86
3.76
4.76
V
V
V
I
–24 mA
OH
–24 mA
V
OL
4.5
5.5
0.001
0.001
0.1
0.1
0.1
0.1
I = 50 µA
OUT
Maximum Low Level
Output Voltage
*V = V or V
IN IL
IH
4.5
5.5
0.36
0.36
0.44
0.44
I
24 mA
OL
24 mA
I
I
Maximum Input
Leakage Current
IN
5.5
±0.1
±1.0
µA
V = V , GND
I
CC
I
Additional Max. I /Input
CC
5.5
5.5
0.6
1.5
75
mA
mA
V = V
I
– 2.1 V
CCT
CC
V
= 1.65 V Max
= 3.85 V Min
†Minimum Dynamic
Output Current
OLD
OHD
CC
OLD
I
I
5.5
5.5
–75
80
mA
V
OHD
Maximum Quiescent
Supply Current
8.0
µA
V
IN
= V or GND
CC
* All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
FACT DATA
5-4
MC74AC151 MC74ACT151
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74ACT
74ACT
= –40°C
T
A
T
C
= +25°C
= 50 pF
V
(V)
*
Fig.
No.
A
CC
Symbol
Parameter
to +85°C
Unit
L
C
= 50 pF
L
Min
Typ
Max
Min
Max
Propagation Delay
to Z
t
t
t
t
t
t
t
t
t
t
t
t
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
3.5
15.5
3.0
17.0
16.5
16.5
18.5
10.0
10.0
9.5
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
3-6
3-6
3-6
3-6
3-6
3-6
3-6
3-6
3-6
3-6
3-6
3-6
PLH
S
n
Propagation Delay
to Z
3.5
3.5
4.0
2.5
2.5
2.5
3.0
3.5
3.5
3.5
4.0
15.5
15
3.0
3.0
3.5
2.5
2.5
2.5
2.5
3.0
3.0
3.0
3.0
PHL
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PHL
S
n
Propagation Delay
to Z
S
n
Propagation Delay
to Z
16.5
9.5
S
n
Propagation Delay
E to Z
Propagation Delay
E to Z
9.0
Propagation Delay
E to Z
8.5
Propagation Delay
E to Z
10.0
11.5
12.0
12.0
12.5
10.5
12.5
13.5
13.0
14.0
Propagation Delay
I
n
to Z
Propagation Delay
to Z
I
n
Propagation Delay
to Z
I
n
Propagation Delay
to Z
I
n
* Voltage Range 5.0 V is 5.0 V ± 0.5 V
CAPACITANCE
Symbol
Value
Typ
Parameter
Unit
Test Conditions
C
C
Input Capacitance
Power Dissipation Capacitance
4.5
70
pF
pF
V
V
= 5.0 V
= 5.0 V
IN
CC
PD
CC
FACT DATA
5-5
MC74AC151 MC74ACT151
OUTLINE DIMENSIONS
N SUFFIX
PLASTIC DIP PACKAGE
NOTES:
CASE 648–08
ISSUE R
–A–
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
16
1
9
8
B
S
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
INCHES
MILLIMETERS
DIM
A
B
C
D
F
MIN
MAX
0.770
0.270
0.175
0.021
0.70
MIN
18.80
6.35
3.69
0.39
1.02
MAX
19.55
6.85
4.44
0.53
1.77
F
0.740
0.250
0.145
0.015
0.040
C
L
SEATING
PLANE
–T–
G
H
J
K
L
0.100 BSC
0.050 BSC
2.54 BSC
1.27 BSC
K
M
0.008
0.015
0.130
0.305
10
0.21
0.38
3.30
7.74
10
H
J
0.110
0.295
0
2.80
7.50
0
G
D 16 PL
M
S
0.020
0.040
0.51
1.01
M
M
0.25 (0.010)
T
A
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751B–05
ISSUE J
–A–
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
16
1
9
8
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
–B–
P 8 PL
M
S
0.25 (0.010)
B
G
MILLIMETERS
INCHES
DIM
A
B
C
D
MIN
9.80
3.80
1.35
0.35
0.40
MAX
10.00
4.00
1.75
0.49
1.25
MIN
MAX
0.393
0.157
0.068
0.019
0.049
F
0.386
0.150
0.054
0.014
0.016
R X 45
K
C
F
G
J
K
M
P
R
1.27 BSC
0.050 BSC
–T–
SEATING
PLANE
0.19
0.10
0
0.25
0.25
7
0.008
0.004
0
0.009
0.009
7
J
M
D
16 PL
5.80
0.25
6.20
0.50
0.229
0.010
0.244
0.019
M
S
S
0.25 (0.010)
T
B
A
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MC74AC151/D
◊
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