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74VHCT125AMTR Datasheet(PDF) 4 Page - STMicroelectronics

Part No. 74VHCT125AMTR
Description  QUAD BUS BUFFERS (3-STATE)
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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74VHCT125A
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Table 6: 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/4 (per circuit)
Table 7: 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
410
10
10
pF
COUT
Output
Capacitance
10
pF
CPD
Power Dissipation
Capacitance
(note 1)
18
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
0.3
0.8
V
VOLV
-0.8
-0.3
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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