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74HC595 数据表(PDF) 6 Page - STMicroelectronics

部件名 74HC595
功能描述  8 BIT SHIFT REGISTER WITH OUTPUT LATCHES 3 STATE
PDF  13 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

74HC595 数据表(HTML) 6 Page - STMicroelectronics

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AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns)
Symbol
Parameter
Test Conditions
Value
Unit
VCC
(V)
CL
(pF)
TA =25
oC
54HC and 74HC
-40 to 85
oC
74HC
-55 to 125
oC
54HC
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tTLH
tTHL
Output Transition
Time (Qn)
2.0
50
25
60
75
90
ns
4.5
7
121518
6.0
6
101315
tTLH
tTHL
Output Transition
Time (QH’)
2.0
50
30
75
95
115
ns
4.5
8
151923
6.0
7
131620
tPLH
tPHL
Propagation
Delay Time
(SCK - QH’)
2.0
50
45
125
155
190
ns
4.5
15
25
31
38
6.0
13
21
26
32
tPLH
tPHL
Propagation
Delay Time
(SCLR - QH’)
2.0
50
60
175
220
265
ns
4.5
18
35
44
53
6.0
15
30
37
45
tPLH
tPHL
Propagation
Delay Time
(RCK - Qn)
2.0
50
60
150
190
225
ns
4.5
20
30
38
45
6.0
17
26
32
38
2.0
150
75
190
240
285
ns
4.5
25
38
48
57
6.0
22
32
41
48
tPZL
tPZH
3 State Output
Enable Time
2.0
50
RL =1 K
Ω
45
135
170
205
ns
4.5
15
27
34
41
6.0
13
23
29
35
2.0
150
RL =1 K
Ω
60
175
220
265
ns
4.5
20
35
44
53
6.0
17
30
37
45
tPLZ
tPHZ
3 State Output
Disable Time
2.0
50
RL =1 K
Ω
30
150
190
225
ns
4.5
15
30
38
45
6.0
14
26
32
38
fMAX
Maximum Clock
Frequency
2.0
50
6.0
17
4.8
4
ns
4.5
30
50
24
20
6.0
35
59
28
24
2.0
150
5.2
14
4.2
3.4
ns
4.5
26
40
21
17
6.0
31
45
25
20
tW(H)
Minimum Pulse
Width
(SCK, RCK)
2.0
50
17
75
95
110
ns
4.5
6
151922
6.0
6
131619
tW(L)
Minimum Pulse
Width
(SCLR)
2.0
50
20
75
95
110
ns
4.5
6
151922
6.0
6
131619
ts
Minimum Set-up
Time
(SI - CCK)
2.0
50
25
50
65
75
ns
4.5
5
101315
6.0
4
9
11
13
M54/M74HC595
6/13



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