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参数资料
| 型号： | M54HC4518M1R |
| 厂商： | 意法半导体 |
| 英文描述： | TERM. F/O CABLE SC-SC/ DPLX/RISER/10M/YELLOW |
| 中文描述： | HC4518双十进制计数器HC4520双4位二进制计数器 |
| 文件页数： | 7/13页 |
| 文件大小： | 270K |
| 代理商： | M54HC4518M1R |
AC ELECTRICAL CHARACTERISTICS
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Symbol
Parameter
Test Conditions
Value
-40 to 85
o
C
74HC
Min.
Unit
V
CC
(V)
T
A
= 25
o
C
54HC and 74HC
Min.
Typ.
30
-55 to 125
o
C
54HC
Min.
Max.
75
15
13
160
32
27
150
30
26
Max.
95
19
16
200
40
34
190
38
33
Max.
110
22
19
240
48
41
225
45
38
t
TLH
t
THL
Output Transition
Time
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
ns
8
7
t
PLH
t
PHL
Propagation
Delay Time
(CK, CE - Qn)
72
22
18
65
20
16
23
51
60
25
6
5
20
5
4
21
3
3
5
38
32
ns
t
PHL
Propagation
Delay Time
(CLR - Qn)
ns
f
MAX
Maximum Clock
Frequency
6
30
35
4.8
24
28
4
MHz
20
24
t
W(H)
t
W(L)
Minimum Pulse
Width
(CK, CE)
75
15
13
75
15
13
50
10
9
10
95
19
16
95
19
16
60
12
11
10
ns
t
W(L)
Minimum Pulse
Width
(CLR)
110
22
19
75
15
13
10
ns
t
REM
Minimum
Removal Time
(CLR)
ns
C
IN
Input Capacitance
Power Dissipation
Capacitance
pF
C
PD
(*)
for HC4518
for HC4520
pF
(*) C
PD
isdefined asthe value ofthe IC’sinternal equivalent capactance which is calculated from the operating current consumption without load.
(Refer to Test Circuit).Average operting current can be obtained by thefollowingequation. I
CC
(opr) = C
PD
V
CC
f
IN
+ I
CC
/2(per COUNTER)
M54/M74HC4518/4520
7/13
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