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M54HC298 Fiches technique(PDF) 5 Page - STMicroelectronics

No de pièce M54HC298
Description  QUAD 2 CHANNEL MULTIPLEXER/REGISTER
PDF  11 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M54HC298 Fiches technique(HTML) 5 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
(CLOCK - Q)
2.0
45
125
155
190
ns
4.5
15
25
31
38
6.0
13
21
26
32
fMAX
Maximum Clock
Frequency
2.0
7
22
5.6
4.6
MHz
4.5
35
67
28
23
6.0
41
79
33
25
tW(H)
tW(L)
Minimum Pulse
Width
(CLOCK)
2.0
18
75
95
110
ns
4.5
6
151922
6.0
6
131619
ts
Minimum Set-up
Time
(A, B, C, D)
2.0
12
50
65
75
ns
4.5
3
101315
6.0
2
9
11
13
ts
Minimum Set-up
Time
(W. S.)
2.0
30
75
95
110
ns
4.5
8
151922
6.0
6
131619
th
Minimum Hold
Time
(A, B, C, D)
2.0
25
30
40
ns
4.5
5
6
8
6.0
4
5
7
th
Minimum Hold
Time
(W. S.)
2.0
0
0
0
ns
4.5
0
0
0
6.0
0
0
0
CIN
Input Capacitance
5
10
10
10
pF
CPD (*)
Power Dissipation
Capacitance
39
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/4 (per bit), and the CPD for
operating current can be obtained by the following equation: CPD = 27 + 12 x n
M54/M74HC298
5/11



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