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M54HC242 датащи(PDF) 5 Page - STMicroelectronics

номер детали M54HC242
подробное описание детали  QUAD BUS TRANSCEIVER 3-STATE
PDF  11 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M54HC242 датащи(HTML) 5 Page - STMicroelectronics

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SWITCHING CHARACTERISTICS TEST WAVEFORM
AC ELECTRICAL CHARACTERISTICS (Input tr =tf =6 ns)
Symbol
Parameter
Test Conditions
Value
Unit
VCC
(V)
CL
(pF)
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
50
25
60
75
90
ns
4.5
7
121518
6.0
6
101315
tPLH
tPHL
Propagation
Delay Time
2.0
50
39
90
115
135
ns
4.5
13
18
23
27
6.0
11
15
20
23
2.0
150
51
145
180
220
ns
4.5
17
29
36
44
6.0
14
25
31
37
tPZL
tPZH
3 State Output
Enable Time
2.0
50
RL =1 K
Ω
57
145
180
220
ns
4.5
18
29
36
44
6.0
15
25
31
37
2.0
150
RL =1 K
Ω
70
175
220
265
ns
4.5
22
35
44
53
6.0
19
30
37
45
tPLZ
tPHZ
3 State Output
Disable Time
2.0
50
RL =1 K
Ω
45
150
190
225
ns
4.5
20
30
38
45
6.0
17
26
32
38
CIN
Input Capacitance
5
10
10
10
pF
CPD (*)
Power Dissipation
Capacitance
for HC242
for HC243
30
35
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
M54/M74HC242/243
5/11



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