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DM7490A Datasheet(PDF) 3 Page - Fairchild Semiconductor

Part # DM7490A
Description  Decade and Binary Counters
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

DM7490A Datasheet(HTML) 3 Page - Fairchild Semiconductor

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Absolute Maximum Ratings(Note 3)
Note 3: 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
Note 4: TA = 25°C and VCC = 5V.
DC Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 5: All typicals are at VCC = 5V, TA = 25°C.
Note 6: QA outputs are tested at IOL = Max plus the limit value of IIL for the B input. This permits driving the B input while maintaining full fan-out capability.
Note 7: Not more than one output should be shorted at a time.
Note 8: ICC is measured with all outputs open, both RO inputs grounded following momentary connection to 4.5V, and all other inputs grounded.
Supply Voltage
7V
Input Voltage
5.5V
Operating Free Air Temperature Range
0
°C to +70°C
Storage Temperature Range
−65°C to +150°C
Symbol
Parameter
Min
Nom
Max
Units
VCC
Supply Voltage
4.75
5
5.25
V
VIH
HIGH Level Input Voltage
2
V
VIL
LOW Level Input Voltage
0.8
V
IOH
HIGH Level Output Current
−0.8
mA
IOL
LOW Level Output Current
16
mA
fCLK
Clock Frequency
A
0
32
MHz
(Note 4)
B
0
16
tW
Pulse Width
A
15
(Note 4)
B
30
ns
Reset
15
tREL
Reset Release Time (Note 4)
25
ns
TA
Free Air Operating Temperature
0
70
°C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 5)
VI
Input Clamp Voltage
VCC = Min, II = −12 mA
−1.5
V
VOH
HIGH Level
VCC = Min, IOH = Max
2.4
3.4
V
Output Voltage
VIL = Max, VIH = Min
VOL
LOW Level
VCC = Min, IOL = Max
0.2
0.4
V
Output Voltage
VIH = Min, VIL = Max (Note 6)
II
Input Current @ Max Input Voltage VCC = Max, VI = 5.5V
1
mA
IIH
HIGH Level
VCC = Max
A
80
Input Current
VI = 2.7V
Reset
40
µA
B
120
IIL
LOW Level
VCC = Max
A
−3.2
Input Current
VI = 0.4V
Reset
−1.6
mA
B
−4.8
IOS
Short Circuit Output Current
VCC = Max (Note 7)
−18
−57
mA
ICC
Supply Current
VCC = Max (Note 8)
29
42
mA


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