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参数资料
| 型号： | 74FTC534SCQR |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | Octal D Flip-Flop with TRI-STATE Outputs |
| 中文描述： | 八路D触发器触发器与三态输出 |
| 文件页数： | 3/8页 |
| 文件大小： | 140K |
| 代理商： | 74FTC534SCQR |
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Terminal Voltage with Respect
to GND (V
TERM
)
74FCT
b
0.5V to
a
7.0V
Temperature Under Bias (T
BIAS
)
74FCT
b
55
§
C to
a
125
§
C
Storage Temperature (T
STG
)
74FCT
b
55
§
C to
a
125
§
C
DC Output Current (I
OUT
)
Note 1:
Absolute maximum ratings are those values beyond which damage
to the device may occur. Exposure to absolute maximum rating conditions
for extended periods may affect reliability. The databook specifications
should be met, without exception, to ensure that the system design is reli-
able over its power supply, temperature, and output/input loading variables.
120 mA
Recommended Operating
Conditions
Supply Voltage (V
CC
)
74FCT
4.75V to 5.25V
Input Voltage
0V to V
CC
0V to V
CC
Output Voltage
Operating Temperature (T
A
)
74FCT
b
0
§
C to
a
70
§
C
Junction Temperature (T
J
)
PDIP
140
§
C
Note:
All commercial packaging is not recommended for applications requir-
ing greater than 2000 temperature cycles from
b
40
§
C to
a
125
§
C.
DC Characteristics for ’FCTA Family Devices
Typical values are at V
CC
e
5.0V, 25
§
C ambient and maximum loading. For test conditions shown as Max, use the value
specified for the appropriate device type: Com: V
CC
e
5.0V
g
5%, T
A
e
0
§
C to
a
70
§
C; V
HC
e
V
CC
b
0.2V.
Symbol
Parameter
74FCTA
Units
Conditions
Min
Typ
Max
V
IH
Minimum High Level
Input Voltage
2.0
V
V
IL
Maximum Low Level
Input Voltage
0.8
V
I
IH
Input High Current
5.0
5.0
m
A
V
CC
e
Max
V
I
e
V
CC
V
I
e
2.7V (Note 2)
I
IL
Input Low Current
b
5.0
b
5.0
m
A
V
CC
e
Max
V
I
e
0.5V (Note 2)
V
I
e
GND
I
OZ
Maximum TRI-STATE Current
2.5
2.5
b
2.5
b
2.5
V
CC
e
Max
V
O
e
V
CC
V
O
e
2.7V (Note 2)
V
O
e
0.5V (Note 2)
V
O
e
GND
m
A
V
IK
Clamp Diode Voltage
b
0.7
b
1.2
V
V
CC
e
Min; I
N
e b
18 mA
I
OS
Short Circuit Current
b
60
b
120
mA
V
CC
e
Max (Note 1); V
O
e
GND
V
OH
Minimum High Level
Output Voltage
2.8
3.0
V
CC
e
3V; V
IN
e
0.2V or V
HC
; I
OH
e b
32
m
A
V
HC
2.4
V
CC
4.3
V
V
CC
e
Min
V
IN
e
V
IH
or V
IL
I
OH
e b
300
m
A
I
OH
e b
15 mA
V
OL
Maximum Low Level
Output Voltage
GND
0.2
V
CC
e
3V; V
IN
e
0.2V or V
HC
; I
OL
e
300
m
A
GND
0.3
0.2
0.5
V
V
CC
e
Min
V
IN
e
V
IH
or V
IL
I
OL
e
300
m
A
I
OL
e
48 mA
3
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