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DM7493A डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Decade and Binary Counters - National Semiconductor

भाग संख्या DM7493A
समारोह Decade and Binary Counters
मैन्युफैक्चरर्स National Semiconductor 
लोगो National Semiconductor लोगो 
पूर्व दर्शन
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<?=DM7493A?> डेटा पत्रक पीडीएफ

DM7493A pdf
Absolute Maximum Ratings (Note)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Supply Voltage
7V
Input Voltage
5 5V
Operating Free Air Temperature Range
DM54
b55 C to a125 C
DM74
0 C to a70 C
Storage Temperature Range
b65 C to a150 C
Recommended Operating Conditions
Symbol
Parameter
VCC
VIH
VIL
IOH
IOL
fCLK
tW
tREL
TA
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Clock Frequency
(Note 5)
A
B
Pulse Width
(Note 5)
A
B
Reset
Reset Release Time (Note 5)
Free Air Operating Temperature
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
Min
45
2
0
0
15
30
15
25
b55
DM5490
Nom
5
Max
55
08
b0 8
16
32
16
125
DM7490A
Min Nom Max
4 75 5
5 25
2
08
b0 8
16
0 32
0 16
15
30
15
25
0 70
Units
V
V
V
mA
mA
MHz
ns
ns
C
’90A Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
(Note 1)
Max
Units
VI
VOH
VOL
II
Input Clamp Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Current Max
Input Voltage
VCC e Min II e b12 mA
VCC e Min IOH e Max
VIL e Max VIH e Min
VCC e Min IOL e Max
VIH e Min VIL e Max (Note 4)
VCC e Max VI e 5 5V
b1 5
V
24 34
V
02 04 V
1 mA
IIH
High Level Input
VCC e Max
Current
VI e 2 7V
A
Reset
80
40 mA
B 120
IIL
Low Level Input
VCC e Max
Current
VI e 0 4V
A
Reset
b3 2
b1 6
mA
B b4 8
IOS Short Circuit
Output Current
VCC e Max
(Note 2)
DM54
DM74
b20
b18
b57
b57
mA
ICC Supply Current
VCC e Max (Note 3)
29 42 mA
Note 1 All typicals are at VCC e 5V TA e 25 C
Note 2 Not more than one output should be shorted at a time
Note 3 ICC is measured with all outputs open both RO inputs grounded following momentary connection to 4 5V and all other inputs grounded
Note 4 QA outputs are tested at IOL e Max plus the limit value of IIL for the B input This permits driving the B input while maintaining full fan-out capability
Note 5 TA e 25 C and VCC e 5V
2

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