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參數(shù)資料
| 型號： | HD74HC595 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 8-bit Shift Register/Latch (with 3-state outputs) |
| 中文描述： | 8位的移位寄存器/鎖存（3態(tài)輸出） |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 57K |
| 代理商： | HD74HC595 |
HD74HC595
5
AC Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Ta = 25
°
C
Ta = –40 to
+85
°
C
Item
Symbol
V
CC
(V)
2.0
Min Typ Max Min
Max
Unit
Test Conditions
Maximum clock
f
max
—
—
5
—
4
MHz
frequency
4.5
—
—
27
—
21
6.0
—
—
31
—
24
Propagation delay t
PLH
time
2.0
—
—
115 —
145
ns
SCK to Q
H
’
t
PHL
4.5
—
12
23
—
29
6.0
—
—
20
—
25
t
PLH
t
PHL
2.0
—
—
150 —
190
ns
RCK to Q
4.5
—
17
30
—
38
6.0
—
—
26
—
33
t
PLH
2.0
—
—
175 —
220
ns
SCLR
to Q
H
’
4.5
—
20
35
—
44
6.0
—
—
30
—
37
Output enable
t
ZL
t
ZH
2.0
—
—
150 —
190
ns
time
4.5
—
13
30
—
38
6.0
—
—
26
—
33
Output disable
t
LZ
t
HZ
2.0
—
—
150 —
190
ns
time
4.5
—
15
30
—
38
6.0
—
—
26
—
33
Setup time
t
su
2.0
100 —
—
125
—
ns
SER to SCK
4.5
20
1
—
25
—
6.0
17
—
—
21
—
2.0
200 —
—
250
—
ns
SCK to RCK
4.5
40
8
—
50
—
6.0
34
—
—
43
—
Pulse width
t
w
2.0
80
—
—
100
—
ns
4.5
16
8
—
20
—
6.0
14
—
—
17
—
Removal time
t
rem
2.0
100 —
—
125
—
ns
4.5
20
—
—
25
—
6.0
17
—
—
21
—
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