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DM74LS393 Datasheet(PDF) 3 Page - Fairchild Semiconductor

Part No. DM74LS393
Description  Dual 4-Bit Binary Counter
Download  6 Pages
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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DM74LS393 Datasheet(HTML) 3 Page - Fairchild Semiconductor

   
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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
Note 2: CL = 15 pF, RL = 2 kΩ, TA = 25°C and VCC = 5V.
Note 3: CL = 50 pF, RL = 2 kΩ, TA = 25°C and VCC = 5V.
Note 4: The symbol (
↓) indicates that the falling edge of the clear pulse is used for reference.
Note 5: TA = 25°C, and VCC = 5V.
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 6: All typicals are at VCC = 5V, TA = 25°C.
Note 7: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 8: ICC is measured with all outputs open, both CLEAR inputs grounded following momentary connection to 4.5V, and all other inputs grounded.
Supply Voltage
7V
Input Voltage
Clear
7V
A5.5V
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
−0.4
mA
IOL
LOW Level Output Current
8
mA
fCLK
Clock Frequency (Note 2)
0
25
MHz
fCLK
Clock Frequency (Note 3)
0
20
MHz
tW
Pulse Width (Note 5)
A
20
ns
Clear HIGH
20
tREL
Clear Release Time (Note 4)(Note 5)
25
ns
TA
Free Air Operating Temperature
0
70
°C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 6)
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
−1.5
V
VOH
HIGH Level
VCC = Min, IOH = Max
2.7
3.4
V
Output Voltage
VIL = Max, VIH = Min
VOL
LOW Level
VCC = Min, IOL = Max
0.35
0.5
Output Voltage
VIL = Max, VIH = Min
V
IOL = 4 mA, VCC = Min
0.25
0.4
II
Input Current @ Max
VCC = Max, VI = 7V
Clear
0.1
mA
Input Voltage
VCC = Max, VI = 5.5V
A
0.2
IIH
HIGH Level
VCC = Max, VI = 2.7V
Clear
20
µA
Input Current
A
40
IIL
LOW Level
VCC = Max, VI = 0.4V
Clear
−0.4
mA
Input Current
A
−1.6
IOS
Short Circuit Output Current
VCC = Max (Note 7)
−20
−100
mA
ICC
Supply Current
VCC = Max (Note 8)
15
26
mA


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