參數(shù)資料
型號: 74FCT273PMQB
廠商: National Semiconductor Corporation
英文描述: Octal D Flip-Flop
中文描述: 八路D觸發(fā)器
文件頁數(shù): 3/8頁
文件大小: 168K
代理商: 74FCT273PMQB
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
)
54FCT
74FCT
b
0.5 to
a
7.0V
b
0.5 to
a
7.0V
Temperature Under Bias (T
BIAS
)
74FCT
54FCT
b
55
§
C to
a
125
§
C
b
65
§
C to
a
135
§
C
Storage Temperature (T
STG
)
74FCT
54FCT
b
55
§
C to
a
125
§
C
b
65
§
C to
a
150
§
C
DC Output Current (I
OUT
)
Note 1:
Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, without
exception, to ensure that the system design is reliable over its power supply,
temperature, and output/input loading variables. National does not recom-
mend operation of FACT
TM
FCT circuits outside databook specifications.
120 mA
Recommended Operating
Conditions
Supply Voltage (V
CC
)
54FCT
74FCT
4.5V to 5.5V
4.75 to 5.25V
Input Voltage
0V to V
CC
0V to V
CC
Output Voltage
Operating Temperature (T
A
)
54FCT
74FCT
b
55
§
C to
a
125
§
C
0
§
C to
a
70
§
C
Junction Temperature (T
J
)
CDIP
PDIP
175
§
C
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 ’FCT 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; Mil: V
CC
e
5.0V
g
10%, T
A
e b
55
§
C
to
a
125
§
C, V
HC
e
V
CC
b
0.2V
Symbol
Parameter
54FCT/74FCT
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
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
OL
e b
32
m
A
V
HC
2.4
2.4
V
CC
4.3
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
12 mA (Mil)
I
OH
e b
15 mA (Com)
3
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