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74VHCT240ATTR датащи(PDF) 4 Page - STMicroelectronics

номер детали 74VHCT240ATTR
подробное описание детали  OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (INVERTED)
PDF  12 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74VHCT240ATTR датащи(HTML) 4 Page - STMicroelectronics

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Table 8: 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)
Table 9: Dynamic Switching Characteristics
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.0V, (n-1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.0V. Inputs under test switching: 3.0V to threshold (VILD), 0V to threshold
(VIHD), f=1MHz.
Symbol
Parameter
Test Condition
Value
Unit
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
CIN
Input Capacitance
610
10
10
pF
COUT
Output
Capacitance
9pF
CPD
Power Dissipation
Capacitance
(note 1)
19
pF
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.
VOLP
Dynamic Low
Voltage Quiet
Output (note 1, 2)
5.0
CL = 50 pF
0.9
1.1
V
VOLV
1.1
-0.9
VIHD
Dynamic High
Voltage Input
(note 1, 3)
5.0
2.0
VILD
Dynamic Low
Voltage Input
(note 1, 3)
5.0
0.8



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