74HC595(2004) 查看數據表（PDF） - STMicroelectronics
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74HC595 Datasheet PDF : 16 Pages
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M74HC595
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
Test Condition
Value
Symbol
Parameter
tTLH tTHL Output Transition
Time
(Qn)
tTLH tTHL Output Transition
Time
(QH’)
tPLH tPHL Propagation Delay
Time
(SCK - QH’)
tPLH tPHL Propagation Delay
Time
(SCLR - QH’)
tPLH tPHL Propagation Delay
Time
(RCK - Qn)
tPZL tPZH High Impedance
Output Enable
Time
tPLZ tPHZ High Impedance
Output Disable
Time
fMAX Maximum Clock
Frequency
tW(H)
tW(L)
ts
ts
Minimum Pulse
Width
(SCK, RCK)
Minimum Pulse
Width
(SCLR)
Minimum Set-up
Time
(SI - CCK)
Minimum Set-up
Time
(SCK - RCK)
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
4.5 150
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
RL = 1 KΩ
RL = 1 KΩ
RL = 1 KΩ
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
25 60
75
90
7 12
15
18 ns
6 10
13
15
30 75
95
115
8 15
19
23 ns
7 13
16
20
45 125
155
190
15 25
31
38 ns
13 21
26
32
60 175
220
265
18 35
44
53 ns
15 30
37
45
60 150
190
225
20 30
38
45 ns
17 26
32
38
75 190
240
285
25 38
48
57 ns
22 32
41
48
45 135
170
205
15 27
34
41 ns
13 23
29
35
60 175
220
265
20 35
44
53 ns
17 30
37
45
30 150
190
225
15 30
38
45 ns
14 26
32
38
6.0 17
4.8
4
30 50
24
20
MHz
35 59
28
24
5.2 14
4.2
3.4
26 40
21
17
MHz
31 45
25
20
17 75
95
110
6 15
19
22 ns
6 13
16
19
20 75
95
110
6 15
19
22 ns
6 13
16
19
25 50
65
75
5 10
13
15 ns
4
9
11
13
35 75
95
110
8 15
19
22 ns
6 13
16
19
6/16
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