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參數資料
| 型號： | HD74HC393 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Quad 2-Line To 1-Line Data Selectors/Multiplexers With 3-State 16-CDIP -55 to 125 |
| 中文描述： | 雙4位二進制計數器 |
| 文件頁數： | 5/9頁 |
| 文件大?。?/td> | 47K |
| 代理商： | HD74HC393 |
HD74HC393
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
—
—
25
—
20
6.0
—
—
29
—
24
Propagation delay t
PLH
time
2.0
—
—
120 —
150
ns
Clock to Q
A
t
PHL
4.5
—
16
24
—
30
6.0
—
—
20
—
26
t
PLH
t
PHL
2.0
—
—
185 —
230
ns
Clock to Q
B
4.5
—
20
37
—
46
6.0
—
—
31
—
39
t
PLH
t
PHL
2.0
—
—
220 —
275
ns
Clock to Q
C
4.5
—
24
44
—
55
6.0
—
—
37
—
47
t
PLH
t
PHL
2.0
—
—
260 —
325
ns
Clock to Q
D
4.5
—
28
52
—
65
6.0
—
—
44
—
55
t
PHL
2.0
—
—
150 —
190
ns
Clear to Q
A
, Q
B
, Q
C
, Q
D
4.5
—
21
30
—
38
6.0
—
—
28
—
33
Pulse width
t
w
2.0
80
—
—
100
—
ns
Clock, clear
4.5
16
—
—
20
—
6.0
14
—
—
17
—
Removal time
t
h
2.0
50
—
—
65
—
ns
Clear to clock
4.5
10
—
—
13
—
6.0
9
—
—
11
—
Output rise/fall
t
TLH
t
THL
2.0
—
—
75
—
95
ns
time
4.5
—
5
15
—
19
6.0
—
—
13
—
16
Input capacitance
Cin
—
—
5
10
—
10
pF
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