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參數(shù)資料
| 型號： | MM74C928 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | 4-Digit Counters with Multiplexed 7-Segment Output Drivers |
| 中文描述： | 4位計(jì)數(shù)器與復(fù)用7段輸出驅(qū)動器 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 204K |
| 代理商： | MM74C928 |
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Voltage at Any Output Pin
GND
b
0.3V to V
CC
a
0.3V
GND
b
0.3V to
a
15V
Voltage at Any Input Pin
Operating Temperature
Range (T
A
)
b
40
§
C to
a
85
§
C
Storage Temperature Range
b
65
§
C to
a
150
§
C
Power Dissipation (P
D
)
Operating V
CC
Range
V
CC
Lead Temperature
(Soldering, 10 seconds)
Refer to P
D(MAX)
vs T
A
Graph
3V to 6V
6.5V
260
§
C
DC Electrical Characteristics
Min/Max limits apply at
b
40
§
C
s
T
j
s
a
85
§
C, unless otherwise noted
Symbol
Parameter
Conditions
Min
Typ
Max
Units
CMOS TO CMOS
V
IN(1)
Logical ‘‘1’’ Input Voltage
V
CC
e
5V
3.5
V
V
IN(0)
Logical ‘‘0’’ Input Voltage
V
CC
e
5V
1.5
V
V
OUT(1)
Logical ‘‘1’’ Output Voltage
(Carry-Out and Digit Output
Only)
V
CC
e
5V, I
O
e b
10
m
A
4.5
V
V
OUT(0)
Logical ‘‘0’’ Output Voltage
V
CC
e
5V, I
O
e
10
m
A
0.5
V
I
IN(1)
Logical ‘‘1’’ Input Current
V
CC
e
5V, V
IN
e
15V
0.005
1
m
A
I
IN(0)
Logical ‘‘0’’ Input Current
V
CC
e
5V, V
IN
e
0V
b
1
b
0.005
m
A
I
CC
Supply Current
V
CC
e
5V, Outputs Open Circuit,
V
IN
e
0V or 5V
20
1000
m
A
CMOS/LPTTL INTERFACE
V
IN(1)
Logical ‘‘1’’ Input Voltage
V
CC
e
4.75V
V
CC
b
2
V
V
IN(0)
Logical ‘‘0’’ Input Voltage
V
CC
e
4.75V
0.8
V
V
OUT(1)
Logical ‘‘1’’ Output Voltage
(Carry-Out and Digit
Output Only)
V
CC
e
4.75V,
I
O
e b
360
m
A
2.4
V
V
OUT(0)
Logical ‘‘0’’ Output Voltage
V
CC
e
4.75V, I
O
e
360
m
A
0.4
V
OUTPUT DRIVE
V
OUT
Output Voltage (Segment
Sourcing Output)
I
OUT
e b
65 mA, V
CC
e
5V, T
j
e
25
§
C
V
CC
b
2
V
CC
b
1.6
V
CC
b
2
V
CC
b
1.3
V
CC
b
1.2
V
CC
b
1.4
V
V
V
I
OUT
e b
40 mA, V
CC
e
5V
T
j
e
100
§
C
D
T
j
e
150
§
C
R
ON
Output Resistance (Segment
Sourcing Output)
I
OUT
e b
65 mA, V
CC
e
5V, T
j
e
25
§
C
20
30
35
0.6
32
40
50
0.8
X
X
X
I
OUT
e b
40 mA, V
CC
e
5V
T
j
e
100
§
C
D
T
j
e
150
§
C
Output Resistance (Segment
Output) Temperature Coefficient
%/
§
C
I
SOURCE
Output Source Current
(Digit Output)
V
CC
e
4.75V, V
OUT
e
1.75V, T
j
e
150
§
C
b
1
b
2
mA
I
SOURCE
Output Source Current
(Carry-Out)
V
CC
e
5V, V
OUT
e
0V, T
j
e
25
§
C
b
1.75
b
3.3
mA
I
SINK
Output Sink Current
(All Outputs)
V
CC
e
5V, V
OUT
e
V
CC
, T
j
e
25
§
C
1.75
3.6
mA
i
jA
Thermal Resistance
MM74C925
MM74C926, MM74C927, MM74C928
(Note 4)
75
70
100
90
§
C/W
§
C/W
Note 1:
‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed. Except for ‘‘Operating Temperature Range’’
they are not meant to imply that the devices should be operated at these limits. The table of ‘‘Electrical Characteristics’’ provides conditions for actual device
operation.
Note 2:
Capacitance is guaranteed by periodic testing.
Note 3:
C
PD
determines the no load AC power consumption of any CMOS device. For complete explanation see 54C/74C Family Characteristics application note,
AN-90.
Note 4:
i
jA
measured in free-air with device soldered into printed circuit board.
2
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