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74HC51 Datasheet(PDF) 4 Page - STMicroelectronics

Part # 74HC51
Description  DUAL 2 WIDE 2 INPUT AND/OR INVERT GATE
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74HC51 Datasheet(HTML) 4 Page - STMicroelectronics

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M74HC51
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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 xVCC xfIN +ICC
TEST CIRCUIT
CL = 50pF or equivalent (includes jig and probe capacitance)
RT =ZOUT of pulse generator (typically 50Ω)
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.
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
2.0
39
100
125
150
ns
4.5
13
20
25
30
6.0
11
17
21
26
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
32
pF


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