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74VHC257T 数据表(PDF) 4 Page - STMicroelectronics

部件名 74VHC257T
功能描述  QUAD 2 CHANNEL MULTIPLEXER 3-STATE
Download  14 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

74VHC257T 数据表(HTML) 4 Page - STMicroelectronics

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Table 6: DC Specifications
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.
VIH
High Level Input
Voltage
2.0
1.5
1.5
1.5
V
3.0 to
5.5
0.7VCC
0.7VCC
0.7VCC
VIL
Low Level Input
Voltage
2.0
0.5
0.5
0.5
V
3.0 to
5.5
0.3VCC
0.3VCC
0.3VCC
VOH
High Level Output
Voltage
2.0
IO=-50 µA
1.9
2.0
1.9
1.9
V
3.0
IO=-50 µA
2.9
3.0
2.9
2.9
4.5
IO=-50 µA
4.4
4.5
4.4
4.4
3.0
IO=-4 mA
2.58
2.48
2.4
4.5
IO=-8 mA
3.94
3.8
3.7
VOL
Low Level Output
Voltage
2.0
IO=50 µA
0.0
0.1
0.1
0.1
V
3.0
IO=50 µA
0.0
0.1
0.1
0.1
4.5
IO=50 µA
0.0
0.1
0.1
0.1
3.0
IO=4 mA
0.36
0.44
0.55
4.5
IO=8 mA
0.36
0.44
0.55
IOZ
High Impedance
Output Leakage
Current
5.5
VI = VIH or VIL
VO = VCC or GND
±0.25
± 2.5
± 2.5
µA
II
Input Leakage
Current
0 to
5.5
VI = 5.5V or GND
± 0.1
± 1
± 1
µA
ICC
Quiescent Supply
Current
5.5
VI = VCC or GND
440
40
µA


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