HC4020 查看數據表（PDF） - STMicroelectronics
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HC4020 Datasheet PDF : 13 Pages
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M54/M74HC4020/4040
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
Parameter
Test Conditions
VCC
(V)
TA = 25 oC
54HC and 74HC
Value
-40 to 85 oC -55 to 125 oC Unit
74HC
54HC
Min. Typ. Max. Min. Max. Min. Max.
tTLH Output Transition 2.0
tTHL Time
4.5
30 75
8
15
95
110
19
22
ns
6.0
7
13
16
19
tPLH Propagation
2.0
tPHL Delay Time
4.5
(Qn - Qn+1)
6.0
20 50
65
75
5
10
13
15
ns
4
9
11
13
tPLH Propagation
tPHL Delay Time
(CLOCK Q1)
2.0
4.5 for HC4020
6.0
76 145
180
220
21 29
36
44
ns
18 25
31
38
tPLH Propagation
tPHL Delay Time
(CLOCK Q1)
2.0
4.5 for HC4040
6.0
48 145
180
220
17 29
36
44
ns
13 25
31
38
tPHL Propagation
Delay Time
(CLEAR - Qn)
2.0
4.5 for HC4020
6.0
60 140
175
210
18 28
35
42
ns
15 24
30
36
tPHL Propagation
Delay Time
(CLEAR - Qn)
2.0
4.5 for HC4040
6.0
56 140
175
210
18 28
35
42
ns
15 24
30
36
fMAX Maximum Clock 2.0
Frequency
4.5
6.0 15
4.8
4
30 65
24
20
MHz
6.0
35 70
28
24
tW(H) Minimum Pulse 2.0
tW(L) Width
4.5
(CLOCK)
6.0
40 75
8
15
7
13
95
110
19
22
ns
16
19
tW(H) Minimum Pulse 2.0
Width
4.5 for HC4020
(CLEAR)
6.0
32 75
8
15
7
13
95
110
19
22
ns
16
19
tW(H) Minimum Pulse 2.0
Width
4.5 for HC4040
(CLEAR)
6.0
70 175
220
265
19 35
44
53
ns
16 30
37
45
tREM Minimum
Removal Time
2.0
4.5 for HC4020
0
0
0
0
0
0
ns
6.0
0
0
0
tREM Minimum
Removal Time
2.0
4.5 for HC4040
25
30
40
5
6
8
ns
6.0
5
5
7
CIN Input Capacitance
5
10
10
pF
CPD (*) Power Dissipation
34
Capacitance
pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN + ICC/2 (per FLIP/FLOP)
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