MC74HC4020A_11 Просмотр технического описания (PDF) - ON Semiconductor
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MC74HC4020A_11 Datasheet PDF : 13 Pages
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MC74HC4020A
AC CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
Parameter
Guaranteed Limit
VCC
V −55 to 25°C ≤85°C ≤125°C Unit
fmax Maximum Clock Frequency (50% Duty Cycle)
(Figures 1 and 4)
2.0
10
3.0
15
4.5
30
6.0
50
9.0
8.0 MHz
14
12
28
25
50
40
tPLH,
tPHL
Maximum Propagation Delay, Clock to Q1*
(Figures 1 and 4)
2.0
96
3.0
63
4.5
31
6.0
25
106
115
ns
71
88
36
40
30
35
tPHL Maximum Propagation Delay, Reset to Any Q
(Figures 2 and 4)
2.0
65
3.0
30
4.5
30
6.0
26
72
90
ns
36
40
35
40
32
35
tPLH,
tPHL
Maximum Propagation Delay, Qn to Qn+1
(Figures 3 and 4)
2.0
69
3.0
40
4.5
17
6.0
14
80
90
ns
45
50
21
28
15
22
tTLH,
tTHL
Maximum Output Transition Time, Any Output
(Figures 1 and 4)
2.0
75
3.0
27
4.5
15
6.0
13
95
110
ns
32
36
19
22
15
19
Cin Maximum Input Capacitance
10
10
10
pF
* For TA = 25°C and CL = 50 pF, typical propagation delay from Clock to other Q outputs may be calculated with the following equations:
VCC = 2.0 V: tP = [93.7 + 59.3 (n−1)] ns
VCC = 4.5 V: tP = [30.25 + 14.6 (n−1)] ns
VCC = 3.0 V: tP = [61.5 + 34.4 (n−1)] ns
VCC = 6.0 V: tP = [24.4 + 12 (n−1)] ns
CPD Power Dissipation Capacitance (Per Package)*
Typical @ 25°C, VCC = 5.0 V
38
pF
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