M74HC590 查看數據表（PDF） - STMicroelectronics
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M74HC590 Datasheet PDF : 15 Pages
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M74HC590
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition
Value
Symbol
Parameter
tTLH tTHL Output Transition
Time
tTLH tTHL Output Transition
Time (RCO)
tPLH tPHL Propagation Delay
Time
(CCK - RCO)
tPLH Propagation Delay
Time
(CCLR - RCO)
tPLH tPHL Propagation Delay
Time
(RCK - Q)
tPZL tPZH High Impedance
Output Enable
Time
tPLZ tPHZ High Impedance
Output Disable
Time
fMAX Maximum Clock
Frequency
tW(L)
tW(H)
Minimum Pulse
Width (CCK, RCK)
tW(L) Minimum Pulse
Width (CCLR)
ts
Minimum Set-up
Time (CCKEN -
CCK)
ts(H) Minimum Set-up
Time (CCK - RCK)
th Minimum Hold
Time
VCC CL
(V) (pF)
2.0
4.5 50
6.0
2.0
4.5 50
6.0
2.0
4.5 50
6.0
2.0
4.5 50
6.0
2.0
4.5 50
6.0
2.0
4.5 150
6.0
2.0
4.5 50
6.0
2.0
4.5 150
6.0
2.0
4.5 50
6.0
2.0
4.5 50
6.0
2.0
4.5 50
6.0
2.0
4.5 50
6.0
2.0
4.5 50
6.0
2.0
4.5 50
6.0
2.0
4.5 50
6.0
RL = 1 KΩ
RL = 1 KΩ
RL = 1 KΩ
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min.
6.6
33
39
Typ.
25
7
6
30
8
7
56
19
16
53
21
18
48
17
14
60
21
18
39
13
11
51
17
14
28
14
12
13
52
61
36
9
8
32
8
7
44
11
9
76
19
16
Max.
60
12
10
75
15
13
165
33
28
175
35
30
145
29
25
185
37
31
105
21
18
135
27
23
105
21
18
100
20
17
75
15
13
100
20
17
175
35
30
0
0
0
Min.
5.2
26
31
Max.
75
15
13
95
19
16
205
41
35
220
44
37
180
36
31
230
46
39
130
26
22
170
34
29
130
26
22
125
25
21
95
19
16
125
25
21
220
44
37
0
0
0
Min.
4.4
22
26
Max.
90
18
15
115
23
20
250
50
43
265
53
45
220
44
37
280
56
48
160
32
27
205
41
35
160
32
27
145
29
25
110
22
19
150
30
26
255
51
43
0
0
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
ns
ns
ns
ns
ns
7/15
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