MC74ACT273DWC [MOTOROLA]
ACT SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PDSO20, PLASTIC, SOIC-20;
| 型号： | MC74ACT273DWC |
| 厂家： | 
MOTOROLA |
| 描述： | ACT SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PDSO20, PLASTIC, SOIC-20 触发器 锁存器 逻辑集成电路 光电二极管 |
| 文件： | 总7页 (文件大小：191K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
OCTAL D FLIP-FLOP
The MC74AC273/74ACT273 has eight edge-triggered D-type flip-flops with
individual D inputs and Q outputs. The common buffered Clock (CP) and Master
Reset (MR) inputs load and reset (clear) all flip-flops simultaneously.
The register is fully edge-triggered. The state of each D input, one setup time
before the LOW-to-HIGH clock transition, is transferred to the corresponding flip-
flop’s Q output.
All outputs will be forced LOW independently of Clock or Data inputs by a LOW
voltage level on the MR input. The device is useful for applications where the true
output only is required and the Clock and Master Reset are common to all storage
elements.
• Ideal Buffer for MOS Microprocessor or Memory
• Eight Edge-Triggered D Flip-Flops
• Buffered Common Clock
• Buffered, Asynchronous Master Reset
• See MC74AC377 for Clock Enable Version
• See MC74AC373 for Transparent Latch Version
• See MC74AC374 for 3-State Version
• Outputs Source/Sink 24 mA
N SUFFIX
CASE 738-03
PLASTIC
• ′ACT273 Has TTL Compatible Inputs
DW SUFFIX
CASE 751D-04
PLASTIC
V
Q
D
D
Q
Q
D
D
Q
4
CP
11
CC
7
7
6
6
5
5
4
20
19
18
17
16
15
14
12
13
LOGIC SYMBOL
1
2
3
4
5
6
7
9
8
10
D
CP
D
Q
D
Q
D
Q
D
Q
D
D
Q
D
Q
0
1
2
3
4
5
6
7
MR
Q
D
D
Q
Q
D
D
Q
3
GND
0
0
1
1
2
2
3
MR
Q
Q
5
0
1
2
3
4
6
7
PIN NAMES
D –D
0
Data Inputs
Master Reset
7
MR
CP
Q –Q
0
Clock Pulse Input
Data Outputs
7
FACT DATA
5-1
MC74AC273 MC74ACT273
LOGIC DIAGRAM
D
D
D
D
D
D
D
D
7
0
1
2
3
4
5
6
CP
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
D
Q
CP
CP
CP
CP
CP
CP
CP
CP
R
R
R
R
R
R
R
R
D
D
D
D
D
D
D
D
MR
O
O
O
O
O
O
O
O
7
0
1
2
3
4
5
6
Please note that this diagram is provided only for the understanding of logic
operations and should not be used to estimate propagation delays.
MODE SELECT-FUNCTION TABLE
Inputs
Outputs
Operating Mode
MR
CP
X
D
Q
n
n
Reset (Clear)
L
H
H
X
L
Load ′1′
Load ′0′
H
L
H
L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
= LOW-to-HIGH Clock Transition
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
+0.5
V
in
CC
CC
V
out
–0.5 to V
V
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
MC74AC273 MC74ACT273
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
MC74AC273 MC74ACT273
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
Maximum Clock
Frequency
3.3
5.0
90
140
125
175
75
125
f
t
t
t
Mhz
ns
3-3
3-6
3-6
3-6
max
Propagation Delay
Clock to Output
3.3
5.0
4.0
3.0
7.0
5.5
12.5
9.0
3.0
2.5
14.0
10.0
PLH
PHL
PHL
Propagation Delay
Clock to Output
3.3
5.0
4.0
3.0
7.0
5.0
13.0
10.0
3.5
2.5
14.5
11.0
ns
Propagation Delay
MR to Output
3.3
5.0
4.0
3.0
7.0
5.0
13.0
10.0
3.5
2.5
14.0
10.5
ns
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
AC OPERATING REQUIREMENTS
74AC
74AC
T
= –40°C
A
T
C
= +25°C
= 50 pF
V
CC
(V)
*
Fig.
No.
A
L
Symbol
Parameter
to +85°C
= 50 pF
Unit
C
L
Typ
Guaranteed Minimum
Setup Time, HIGH or LOW
Data to CP
3.3
5.0
3.5
2.5
5.5
4.0
6.0
4.5
t
t
t
t
t
ns
ns
ns
ns
ns
3-9
3-9
3-6
3-6
3-9
s
Hold Time, HIGH or LOW
Data to CP
3.3
5.0
–2.0
–1.0
0
1.0
0
1.0
h
Clock Pulse Width
HIGH or LOW
3.3
5.0
3.5
2.5
5.5
4.0
6.0
4.5
w
w
MR Pulse Width
HIGH or LOW
3.3
5.0
2.0
1.5
5.5
4.0
6.0
4.5
Recovery Time
MR to CP
3.3
5.0
1.5
1.0
3.5
2.0
4.5
3.0
rec
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
FACT DATA
5-4
MC74AC273 MC74ACT273
DC CHARACTERISTICS
Symbol
74ACT
= +25°C
74ACT
T
A
=
V
(V)
CC
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
= 0.1 V
– 0.1 V
Minimum High Level
Input Voltage
IH
OUT
V
V
V
or V
CC
= 0.1 V
OUT
4.5
5.5
1.5
1.5
0.8
0.8
0.8
0.8
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
–24 mA
–24 mA
I
OH
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
V
24 mA
I
OL
24 mA
I
IN
Maximum Input
Leakage Current
5.5
±0.1
±1.0
µA
V = V , GND
I
CC
∆I
Additional Max. I /Input
CC
5.5
5.5
5.5
0.6
1.5
75
mA
mA
mA
V = V
I
– 2.1 V
CCT
CC
I
V
= 1.65 V Max
= 3.85 V Min
OHD
†Minimum Dynamic
Output Current
OLD
OLD
I
–75
V
V
OHD
CC
I
Maximum Quiescent
Supply Current
5.5
8.0
80
µA
= V
CC
or GND
IN
* All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74ACT
74ACT
T
= –40°C
A
T
C
= +25°C
= 50 pF
V
(V)
*
Fig.
No.
A
L
CC
Symbol
Parameter
to +85°C
= 50 pF
Unit
C
L
Min
Typ
Max
Min
Max
Maximum Clock
Frequency
f
t
t
t
5.0
5.0
5.0
5.0
125
200
125
MHz
ns
3-3
3-6
3-6
3-6
max
Propagation Delay
Clock to Output
3.0
3.0
3.0
6.0
6.5
7.0
10
11
11
2.5
2.5
2.5
11.0
12.0
11.5
PHL
PLH
PHL
Propagation Delay
Clock to Output
ns
Propagation Delay
MR to Output
ns
* Voltage Range 5.0 V is 5.0 V ±0.5 V.
FACT DATA
5-5
MC74AC273 MC74ACT273
AC OPERATING REQUIREMENTS
74ACT
74ACT
= –40°C
T
A
T
C
= +25°C
= 50 pF
V
(V)
*
Fig.
No.
A
CC
Symbol
Parameter
to +85°C
= 50 pF
Unit
L
C
L
Typ
Guaranteed Minimum
Setup Time, HIGH or LOW
Data to CP
t
t
t
t
t
5.0
5.0
5.0
5.0
5.0
3.0
4.5
2.0
4.0
4.0
2.0
5.0
2.0
4.5
4.5
3.0
ns
ns
ns
ns
ns
3-9
3-9
3-6
3-6
3-6
s
Hold Time, HIGH or LOW
Data to CP
–2.5
2.5
h
Clock Pulse Width
HIGH or LOW
w
w
MR Pulse Width
HIGH or LOW
2.5
Recovery Time
MR to CP
–1.0
rec
* 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
50
pF
pF
V
V
= 5.0 V
= 5.0 V
IN
CC
PD
CC
FACT DATA
5-6
MC74AC273 MC74ACT273
OUTLINE DIMENSIONS
N SUFFIX
PLASTIC DIP PACKAGE
CASE 738–03
ISSUE E
–A–
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
20
1
11
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD
FLASH.
B
10
L
C
INCHES
MILLIMETERS
DIM
A
B
C
D
MIN
MAX
1.070
0.260
0.180
0.022
MIN
25.66
6.10
3.81
0.39
MAX
27.17
6.60
4.57
0.55
1.010
0.240
0.150
0.015
–T–
SEATING
PLANE
K
E
0.050 BSC
1.27 BSC
M
0.050
0.070
1.27
1.77
F
G
J
K
L
N
E
0.100 BSC
2.54 BSC
0.008
0.110
0.015
0.140
0.21
2.80
0.38
3.55
G
F
J 20 PL
0.300 BSC
7.62 BSC
D 20 PL
0.25 (0.010)
M
M
0.25 (0.010)
T B
M
N
0
15
0
15
0.020
0.040
0.51
1.01
M
M
T
A
DW SUFFIX
PLASTIC SOIC PACKAGE
CASE 751D–04
ISSUE E
NOTES:
–A–
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
20
11
4. MAXIMUM MOLD PROTRUSION 0.150
(0.006) PER SIDE.
10X P
–B–
5. DIMENSION D DOES NOT INCLUDE
DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.13
(0.005) TOTAL IN EXCESS OF D
DIMENSION AT MAXIMUM MATERIAL
CONDITION.
M
M
0.010 (0.25)
B
1
10
J
MILLIMETERS
INCHES
20X D
DIM
A
B
C
D
F
G
J
K
M
P
MIN
12.65
7.40
2.35
0.35
0.50
MAX
12.95
7.60
2.65
0.49
0.90
MIN
MAX
0.510
0.299
0.104
0.019
0.035
0.499
0.292
0.093
0.014
0.020
M
S
S
0.010 (0.25)
T
A
B
F
R X 45
1.27 BSC
0.050 BSC
0.25
0.10
0
10.05
0.25
0.32
0.25
7
10.55
0.75
0.010
0.004
0
0.395
0.010
0.012
0.009
7
0.415
0.029
C
SEATING
PLANE
–T–
R
M
18X G
K
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MC74AC273/D
◊
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