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74ALS74 Ver la hoja de datos (PDF) - Fairchild Semiconductor

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74ALS74 Dual D Positive-Edge-Triggered Flip-Flop with Preset and Clear Fairchild
Fairchild Semiconductor Fairchild
74ALS74 Datasheet PDF : 7 Pages
1 2 3 4 5 6 7
Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C.
Symbol
Parameter
Conditions
Min
Typ
VIK
Input Clamp Voltage
VCC = 4.5V, II = −18 mA
VOH
HIGH Level
IOH = −0.4 mA
Output Voltage
VCC = 4.5V to 5.5V
VOL
LOW Level
Output Voltage
VCC = 4.5V
VIH = 2V
IOL = 8 mA
II
Input Current @
VCC = 5.5V,
Clock, D
Max Input Voltage
VIH = 7V
Preset, Clear
IIH
HIGH Level
VCC = 5.5V,
Clock, D
Input Current
VIH = 2.7V
Preset, Clear
IIL
LOW Level
VCC = 5.5V,
Clock, D
Input Current
VIL = 0.4V
Preset, Clear (Note 5)
IO
Output Drive Current
VCC = 5.5V, VO = 2.25V
ICC
Supply Current
VCC = 5.5V (Note 4)
Note 4: ICC is measured with D, CLK and PRESET grounded, then with D, CLK and CLEAR grounded.
Note 5: IIL PRE and CLR pins not guaranteed to meet specifications with both PRE and CLK LOW.
VCC 2
30
0.35
2.4
Max
1.5
0.5
0.1
0.2
20
40
0.2
0.4
112
4
Switching Characteristics
over recommended operating free air temperature range.
Parameter
Conditions
From
fMAX
tPLH
tPHL
tPLH
tPHL
VCC = 4.5V to 5.5V
RL = 500
CL = 50 pF
Preset or Clear
Clock
To
Q or Q
Q or Q
Min
Max
34
3
13
5
15
5
16
5
18
Units
V
V
V
mA
µA
mA
mA
mA
Units
MHz
ns
ns
ns
ns
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