參數(shù)資料
型號(hào)： 7445
廠商： Fairchild Semiconductor Corporation
英文描述： BCD to Decimal Decoders/Drivers
中文描述： BCD碼為十進(jìn)制解碼器/驅(qū)動(dòng)器
文件頁數(shù)： 3/4頁
文件大小： 41K
代理商： 7445
3
www.fairchildsemi.com
D
Absolute Maximum Ratings
(Note 1)
Note 1:
The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Recommended Operating Conditions
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 2:
All typicals are at V
CC
=
5V, T
A
=
25
°
C.
Note 3:
I
CC
is measured with all inputs grounded and all outputs OPEN.
Switching Characteristics
at V
CC
=
5V and T
A
=
25
°
C
Symbol
Supply Voltage
Input Voltage
Output Voltage
Operating Free Air Temperature Range
Storage Temperature Range
7V
5.5V
30V
0
°
C to
+
70
°
C
65
°
C to
+
150
°
C
Symbol
V
CC
V
IH
V
IL
V
OH
I
OL
T
A
Parameter
Min
4.75
2
Nom
5
Max
5.25
Units
V
V
V
V
mA
°
C
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
LOW Level Output Current
Free Air Operating Temperature
0.8
30
20
70
0
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 2)
V
I
I
CEX
Input Clamp Voltage
V
CC
=
Min, I
I
=
12 mA
V
CC
=
Min, V
O
=
30V
V
IL
=
Max, V
IH
=
Min
V
CC
=
Min, I
OL
=
Max
V
IH
=
Min, V
IL
=
Max
I
OL
=
80 mA
V
CC
=
Min
V
CC
=
Max, V
I
=
5.5V
V
CC
=
Max, V
I
=
2.4V
V
CC
=
Max, V
I
=
0.4V
V
CC
=
Max (Note 3)
1.5
V
HIGH Level
Output Current
LOW Level
250
μ
A
V
OL
0.2
0.4
Output Voltage
V
0.5
0.9
I
I
I
IH
I
IL
I
CC
Input Current @ Max Input Voltage
HIGH Level Input Current
1
mA
μ
A
mA
mA
40
1.6
70
LOW Level Input Current
Supply Current
43
Parameter
Conditions
Min
Max
Units
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
C
L
=
15 pF
R
L
=
100
49.5
ns
t
PHL
49.5
ns
HIGH-to-LOW Level Output
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