MM74C240 查看數據表（PDF） - Fairchild Semiconductor
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MM74C240
Fairchild Semiconductor
MM74C240 Datasheet PDF : 8 Pages
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AC Electrical Characteristics (Note 2)
TA = 25°C, CL = 50 pF, unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max
Units
tPD(1),
tPD(0)
Propagation Delay
(Data In to Out)
MM74C240
MM74C244
t1H, t0H
Propagation Delay Output
Disable to High Impedance
State (from a Logic Level)
tH1, tH0
Propagation Delay Output
Disable to Logic Level
(from High Impedance State)
tT(HL), tT(LH) Transition Time
CPD
Power Dissipation
Capacitance
VCC = 5V, CL = 50 pF
VCC = 10V, CL = 50 pF
V CC = 5V, CL = 150 pF
VCC = 10V, CL = 150 pF
V CC = 5V, CL = 50 pF
VCC = 10V, CL = 50 pF
VCC = 5V, CL = 150 pF
VCC = 10V, CL = 150 pF
RL = 1k, CL = 50 pF
VCC = 5V
VCC = 10V
RL = 1k, CL = 50 pF
VCC = 5V
VCC = 10V
VCC = 5V, CL = 50 pF
VCC = 10V, CL = 50 pF
VCC = 5V, CL = 150 pF
VCC = 10V, CL = 150 pF
(Note 3)
60
90
40
70
ns
80
110
60
90
45
70
25
50
ns
60
90
40
70
45
80
ns
35
60
50
90
ns
30
60
45
80
30
60
ns
75
140
50
100
(Output Enabled per Buffer)
MM74C240
MM74C244
100
pF
100
(Output Disabled per Buffer)
MM74C240
MM74C244
10
pF
0
CIN
Input Capacitance (Note 4)
(Any Input)
VIN = 0V, f = 1 MHz, TA = 25°C
10
pF
CO
Output Capacitance (Note 4)
(Output Disabled)
VIN = 0V, f = 1 MHz, TA = 25°C
10
pF
Note 2: AC Parameters are guaranteed by DC correlated testing.
Note 3: CPD determines the no load AC power consumption of any CMOS device. For complete explanation see Family Characteristics Application Note,
AN-90.
Note 4: Capacitance is guaranteed by periodic testing.
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