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DM74ALS390 Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. DM74ALS390
Description  Dual 4-Bit Decade Counters
Download  6 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DM74ALS390 Datasheet(HTML) 2 Page - National Semiconductor (TI)

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Absolute Maximum Rating
If MilitaryAerospace specified devices are required
please contact the National Semiconductor Sales
OfficeDistributors for availability and specifications
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
DM54ALS
b
55 Cto a125 C
DM74ALS
0 Cto a70 C
Storage Temperature Range
b
65 Cto a150 C
Note
The ‘‘Absolute Maximum Ratings’’ are those values
beyond which the safety of the device cannot be guaran-
teed The device should not be operated at these limits The
parametric values defined in the ‘‘Electrical Characteristics’’
table are not guaranteed at the absolute maximum ratings
The ‘‘Recommended Operating Conditions’’ table will define
the conditions for actual device operation
Recommended Operating Conditions
Symbol
Parameter
DM54ALS390
DM74ALS390
Units
Min
Nom
Max
Min
Nom
Max
VCC
Supply Voltage
45
5
55
45
5
55
V
VIH
High Level Input Voltage
2
2
V
VIL
Low Level Input Voltage
07
08
V
IOH
High Level Output Current
b
04
b
04
mA
IOL
Low Level Output Current
4
8
mA
fCOUNT
Count Frequency
A Input
0
0
MHz
B Input
0
0
tW
Pulse Width
A Input High
A Input Low
ns
B Input High
Clear High
tSU
Clear Inactive-State Setup Time
ns
TA
Free Air Operating Temperature
b
55
125
0
70
C
Electrical Characteristics over recommended free air temperature range
Symbol
Parameter
Test Conditions
Min
Typ
Max
Units
VIC
Input Clamp Voltage
VCC e Min II eb18 mA
b
15
V
VOH
High Level Output Voltage
VCC e 45V to 55V IOH eb04 mA
VCC b 2V
VOL
Low Level Output
VCC e Min
5474ALS
025
04
Voltage
IOL e 4mA
V
74ALS
035
05
IOL e 8mA
II
Input Current at Max VI e 7V
VCC e Max VI e 7V
Clear
100
Input Voltage
Input A
200
m
A
Input B
300
IIH
High Level Input
VCC e Max VI e 27V
Clear
20
Current
Input A
40
m
A
Input B
60
IIL
Low Level Input
VCC e Max VI e 04V
Clear
b
100
Current
Input A
b
200
m
A
Input B
b
300
IO
Output Drive Current
VCC e Max VO e 225V
b
30
b
112
mA
(B Bus Ports Only)
ICC
Supply Current
VCC e Max (Note 1)
mA
2


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