MM74HC4020MTC 查看數據表（PDF） - Fairchild Semiconductor
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MM74HC4020MTC Datasheet PDF : 8 Pages
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AC Electrical Characteristics
VCC = 5V, TA = 25°C, CL = 15 pF, tr = tf = 6 ns
Symbol
Parameter
Conditions
Guaranteed
Typ
Units
Limit
fMAX
tPHL, tPLH
Maximum Operating Frequency
Maximum Propagation
Delay Clock to Q
(Note 5)
50
30
MHz
17
35
ns
tPHL
Maximum Propagation
Delay Reset to any Q
16
40
ns
tREM
Minimum Reset
Removal Time
10
20
ns
tW
Minimum Pulse Width
10
16
ns
Note 5: Typical Propagation delay time to any output can be calculated using: tP = 17 + 12(N–1) ns; where N is the number of the output, QW, at VCC = 5V.
AC Electrical Characteristics
VCC = 2.0V to 6.0V, CL = 50 pF, tr = tf = 6 ns (unless otherwise specified)
Symbol
Parameter
Conditions
VCC
TA = 25°C
Typ
TA = −40 to 85°C TA = −55 to 125°C
Guaranteed Limits
fMAX
Maximum Operating
Frequency
2.0V
10
6
5
4
4.5V
40
30
24
20
6.0V
50
35
28
24
tPHL, tPLH
Maximum Propagation
Delay Clock to Q1
2.0V
80
210
265
313
4.5V
21
42
53
63
6.0V
18
36
45
53
TPHL, tPLH Maximum Propagation
Delay Between Stages
2.0V
80
125
156
188
4.5V
18
25
31
38
from Qn to Qn+1
tPHL
Maximum Propagation
Delay Reset to any Q
6.0V
15
21
26
31
2.0V
72
240
302
358
4.5V
24
48
60
72
(4020 and 4040)
6.0V
20
41
51
61
tREM
Minimum Reset
Removal Time
2.0V
4.5V
100
126
149
20
25
50
6.0V
16
21
25
tW
Minimum Pulse Width
2.0V
4.5V
90
100
120
16
20
24
6.0V
14
18
20
tTLH, tTHL
Maximum
Output Rise
2.0V
30
75
95
110
4.5V
10
15
19
22
and Fall Time
6.0V
9
13
16
19
tr, tf
Maximum Input Rise and
Fall Time
1000
500
1000
500
1000
500
400
400
400
CPD
Power Dissipation
(per package)
55
Capacitance (Note 6)
CIN
Maximum Input
Capacitance
5
10
10
10
Note 6: CPD determines the no load dynamic power consumption, PD = CPD VCC2 f + ICC VCC, and the no load dynamic current consumption,
IS = CPD VCC f + ICC.
Units
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
pF
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