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74VHC14 Datasheet(PDF) 7 Page - STMicroelectronics

No. de pieza 74VHC14
Descripción Electrónicos  HEX SCHMITT inverter
PDF  15 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74VHC14 Datasheet(HTML) 7 Page - STMicroelectronics

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74VHC14
Electrical characteristics
7/15
Table 6. AC electrical characteristics (Input tr = tf = 3ns)
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.
tPLH
tPHL
Propagation delay
time
3.3(1)
15
8.3
12.8
1.0
15.0
1.0
15.0
ns
3.3(1)
50
10.8
16.3
1.0
18.5
1.0
18.5
5.0(2)
15
5.5
8.6
1.0
10.0
1.0
10.0
5.0(2)
50
7.0
10.6
1.0
12.0
1.0
12.0
1.
Voltage range is 3.3V ± 0.3V
2.
Voltage range is 5.0V ± 0.5V
Table 7. Capacitive characteristics
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
6
10
10
10
pF
CPD
Power dissipation
capacitance (1)
14
pF
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/6 (per gate)
Table 8. Dynamic switching characteristics
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 (1) (2)
5.0
CL = 50 pF
0.3
0.8
V
VOLV
-0.8
-0.3
VIHD
Dynamic high
voltage input (1) (3)
5.0
3.5
V
VILD
Dynamic low
voltage input (1) (3)
5.0
1.5
V
1.
Worst case package.
2.
Max number of outputs defined as (n). Data inputs are driven 0V to 5.0V, (n-1) outputs switching and one output at GND.
3.
Max number of data inputs (n) switching. (n-1) switching 0V to 5.0V. Inputs under test switching: 5.0V to threshold (VILD),
0V to threshold (VIHD), f = 1MHz.



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