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DM74LS74A Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part No. DM74LS74A
Description  Dual Positive-Edge-Triggered D Flip-Flops with Preset, Clear and Complementary Outputs
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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DM74LS74A Datasheet(HTML) 2 Page - Fairchild Semiconductor

   
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2
Absolute Maximum Ratings(Note 2)
Note 2: 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 3: CL = 15 pF, RL = 2 kΩ, TA = 25°C, and VCC = 5V.
Note 4: CL = 50 pF, RL = 2 kΩ, TA = 25°C, and VCC = 5V.
Note 5: The symbol (
↑) indicates the rising edge of the clock pulse is used for reference.
Note 6: TA = 25°C and VCC = 5V.
Supply Voltage
7V
Input Voltage
7V
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 3)
0
25
MHz
fCLK
Clock Frequency (Note 4)
0
20
MHz
tW
Pulse Width
Clock HIGH
18
(Note 3)
Preset LOW
15
ns
Clear LOW
15
tW
Pulse Width
Clock HIGH
25
(Note 4)
Preset LOW
20
ns
Clear LOW
20
tSU
Setup Time (Note 3)(Note 5)
20
ns
tSU
Setup Time (Note 4)(Note 5)
25
ns
tH
Hold Time (Note 5)(Note 6)
0
ns
TA
Free Air Operating Temperature
0
70
°C


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