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M54HC374 Scheda tecnica(PDF) 5 Page - STMicroelectronics

Il numero della parte M54HC374
Spiegazioni elettronici  RAD-HARD OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT NON INVERTING
PDF  11 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M54HC374 Scheda tecnica(HTML) 5 Page - STMicroelectronics

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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) =30+17 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
(CLOCK - Q)
2.0
50
45
140
175
210
ns
4.5
15
28
35
42
6.0
13
24
30
36
2.0
150
60
190
240
285
ns
4.5
20
38
48
57
6.0
17
32
41
48
tPZL tPZH High Impedance
Output Enable
Time
2.0
50
RL =1 KΩ
39
135
170
205
ns
4.5
13
27
34
41
6.0
11
23
29
35
2.0
150
RL =1 KΩ
54
185
230
280
ns
4.5
18
37
46
56
6.0
15
31
39
48
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
fMAX
Maximum Clock
Frequency
2.0
50
6.2
18
5
4.2
MHz
4.5
31
752521
6.0
37
903025
tW(L)
tW(H)
Minimum Pulse
Width (CLOCK)
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
25
75
95
110
ns
4.5
6
15
19
22
6.0
4
13
16
19
th
Minimum Hold
Time
2.0
50
00
0
ns
4.5
0
0
0
6.0
0
0
0
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)
47
pF



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