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M54HC373 bảng dữ liệu(PDF) 5 Page - STMicroelectronics

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Giải thích chi tiết về linh kiện  RAD-HARD OCTAL D-TYPE LATCH WITH 3 STATE OUTPUT NON INVERTING
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Table 6: AC Electrical Characteristics (CL = 50 pF, Input tr =tf = 6ns)
Table 7: Capacitive Characteristics
1) 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 operating current can be obtained by the following equation. ICC(opr) =CPD xVCC xfIN +ICC/8 (per Flip
Flop) and the CPD when n pcs of Flip Flop operate, can be gained by the following equation: CPD(TOTAL) =22+16 x n (pF)
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
CL
(pF)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tTLH tTHL Output Transition
Time
2.0
50
25
60
75
90
ns
4.5
7
12
15
18
6.0
6
10
13
15
tPLH tPHL Propagation Delay
Time
(LE, D - Q)
2.0
50
42
125
155
190
ns
4.5
14
25
31
38
6.0
12
21
26
32
2.0
150
57
175
220
265
ns
4.5
19
35
44
53
6.0
16
30
37
45
tPZL tPZH High Impedance
Output Enable
Time
2.0
50
RL =1 KΩ
39
125
155
190
ns
4.5
13
25
31
38
6.0
11
21
26
32
2.0
150
RL =1 KΩ
54
175
220
265
ns
4.5
18
35
44
53
6.0
15
30
37
45
tPLZ tPHZ High Impedance
Output Disable
Time
2.0
50
RL =1 KΩ
30
125
155
190
ns
4.5
14
25
31
38
6.0
13
21
26
32
tW(H)
Minimum Pulse
Width (LE)
2.0
50
15
75
95
110
ns
4.5
6
15
19
22
6.0
6
13
16
19
ts
Minimum Set-up
Time
2.0
50
16
50
65
75
ns
4.5
4
10
13
15
6.0
3
9
11
13
th
Minimum Hold
Time
2.0
50
55
5
ns
4.5
5
5
5
6.0
5
5
5
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
CIN
Input Capacitance
510
10
10
pF
COUT
Output
Capacitance
10
pF
CPD
Power Dissipation
Capacitance (note
1)
38
pF



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