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M74HC243 Datenblatt(PDF) 5 Page - STMicroelectronics

Teilenummer M74HC243
Bauteilbeschribung  QUAD BUS TRANSCEIVER (3 - STATE)
PDF  11 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M74HC243 Datenblatt(HTML) 5 Page - STMicroelectronics

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AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
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 x VCC x fIN + ICC
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
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 High Impedance
Output Enable
Time
2.0
50
RL = 1 KΩ
57
145
180
220
ns
4.5
18
29
36
44
6.0
15
25
31
37
2.0
150
RL = 1 KΩ
70
175
220
265
ns
4.5
22
35
44
53
6.0
19
30
37
45
tPLZ tPHZ High Impedance
Output Disable
Time
2.0
50
RL = 1 KΩ
45
150
190
225
ns
4.5
20
30
38
45
6.0
17
26
32
38
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
5.0
5
101010
pF
CPD
Power Dissipation
Capacitance (note
1)
5.0
35
pF



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