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M54HC4518 bảng dữ liệu(PDF) 7 Page - STMicroelectronics

tên linh kiện M54HC4518
Giải thích chi tiết về linh kiện  HC4518 DUAL DECADE COUNTER HC4520 DUAL 4 BIT BINARY COUNTER
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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M54HC4518 bảng dữ liệu(HTML) 7 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)
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
2.0
30
75
95
110
ns
4.5
8
151922
6.0
7
131619
tPLH
tPHL
Propagation
Delay Time
(CK, CE - Qn)
2.0
72
160
200
240
ns
4.5
22
32
40
48
6.0
18
27
34
41
tPHL
Propagation
Delay Time
(CLR - Qn)
2.0
65
150
190
225
ns
4.5
20
30
38
45
6.0
16
26
33
38
fMAX
Maximum Clock
Frequency
2.0
6
23
4.8
4
MHz
4.5
30
51
24
20
6.0
35
60
28
24
tW(H)
tW(L)
Minimum Pulse
Width
(CK, CE)
2.0
25
75
95
ns
4.5
6
15
19
6.0
5
13
16
tW(L)
Minimum Pulse
Width
(CLR)
2.0
20
75
95
110
ns
4.5
5
151922
6.0
4
131619
tREM
Minimum
Removal Time
(CLR)
2.0
21
50
60
75
ns
4.5
3
101215
6.0
3
9
11
13
CIN
Input Capacitance
5
10
10
10
pF
CPD (*)
Power Dissipation
Capacitance
for HC4518
for HC4520
38
32
pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD
•VCC •fIN +ICC/2 (per COUNTER)
M54/M74HC4518/4520
7/13



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