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M74HC240 Fiches technique(PDF) 4 Page - STMicroelectronics

No de pièce M74HC240
Description  OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (INVERTED)
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M74HC240 Fiches technique(HTML) 4 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/8 (per circuit)
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
121918
6.0
6
101315
tPLH tPHL Propagation Delay
Time
2.0
50
36
90
115
135
ns
4.5
12
18
23
27
6.0
10
15
20
23
2.0
150
51
130
165
195
ns
4.5
17
26
33
39
6.0
14
22
28
33
tPZL tPZH High Impedance
Output Enable
Time
2.0
50
RL = 1 KΩ
48
125
155
190
ns
4.5
16
25
31
38
6.0
14
21
25
32
2.0
150
RL = 1 KΩ
63
165
205
250
ns
4.5
21
33
41
50
6.0
18
28
35
43
tPLZ tPHZ High Impedance
Output Disable
Time
2.0
50
RL = 1 KΩ
32
125
155
190
ns
4.5
15
25
31
38
6.0
14
21
26
32
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
COUT
Output
Capacitance
5.0
10
pF
CPD
Power Dissipation
Capacitance (note
1)
5.0
31
pF


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