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74ALS74 Folha de dados(PDF) 4 Page - Fairchild Semiconductor

Nome de Peças 74ALS74
Descrição Electrónicos  Dual D Positive-Edge-Triggered Flip-Flop with Preset and Clear
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Fabricante Electrônico  FAIRCHILD [Fairchild Semiconductor]
Página de início  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

74ALS74 Folha de dados(HTML) 4 Page - Fairchild Semiconductor

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4
Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C.
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.
Switching Characteristics
over recommended operating free air temperature range.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VIK
Input Clamp Voltage
VCC = 4.5V, II = −18 mA
−1.5
V
VOH
HIGH Level
IOH = −0.4 mA
VCC − 2V
Output Voltage
VCC = 4.5V to 5.5V
VOL
LOW Level
VCC = 4.5V
IOL = 8 mA
0.35
0.5
V
Output Voltage
VIH = 2V
II
Input Current @
VCC = 5.5V,
Clock, D
0.1
mA
Max Input Voltage
VIH = 7V
Preset, Clear
0.2
IIH
HIGH Level
VCC = 5.5V,
Clock, D
20
µA
Input Current
VIH = 2.7V
Preset, Clear
40
IIL
LOW Level
VCC = 5.5V,
Clock, D
−0.2
mA
Input Current
VIL = 0.4V
Preset, Clear (Note 5)
−0.4
IO
Output Drive Current
VCC = 5.5V, VO = 2.25V
−30
−112
mA
ICC
Supply Current
VCC = 5.5V (Note 4)
2.4
4
mA
Parameter
Conditions
From
To
Min
Max
Units
fMAX
VCC = 4.5V to 5.5V
34
MHz
tPLH
RL = 500Ω
Preset or Clear
Q or Q
313
ns
tPHL
CL = 50 pF
515
ns
tPLH
Clock
Q or Q
516
ns
tPHL
518
ns


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