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74ACT257 Datasheet(PDF) 4 Page - STMicroelectronics

No. de pieza 74ACT257
Descripción Electrónicos  QUAD 2 CHANNEL MULTIPLEXER 3-STATE
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74ACT257 Datasheet(HTML) 4 Page - STMicroelectronics

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DC SPECIFICATIONS
Symbol
Parameter
Test Con dition s
Value
Unit
VCC
(V)
TA =25
oC-40 to 85 oC
Mi n.
Typ.
Max.
Min .
Max.
VIH
High Level Input Voltage
4.5
VO = 0.1 V or
VCC - 0.1 V
2.0
1.5
2.0
V
5.5
2.0
1.5
2.0
VIL
Low Level Input Voltage
4.5
VO = 0.1 V or
VCC - 0.1 V
1.5
0.8
0.8
V
5.5
1.5
0.8
0.8
VOH
High Level Output
Voltage
4.5
VI
(*) =
VIH or
VIL
IO=-50
µA
4.4
4.49
4.4
V
5.5
IO=-50
µA
5.4
5.49
5.4
4.5
IO=-24 mA
3.86
3.76
5.5
IO=-24 mA
4.86
4.76
VOL
Low Level Output
Voltage
4.5
VI
(*) =
VIH or
VIL
IO=50
µA
0.001
0.1
0.1
V
5.5
IO=50 mA
0.001
0.1
0.1
4.5
IO=24 mA
0.36
0.44
5.5
IO=24 mA
0.36
0.44
II
Input Leakage Current
5.5
VI =VCC or GND
±0.1
±1
µA
IOZ
3 State Output Leakage
Current
5.5
VI =VIH or VIL
VO =VCC or GND
±0.5
±5
µA
ICCT
Max ICC /Input
5.5
VI =VCC -2.1 V
0.6
1.5
mA
ICC
Quiescent Supply
Current
5.5
VI =VCC or GND
8
80
µA
IOLD
Dynamic Output Current
(note 1, 2)
5.5
VOLD = 1.65 V max
75
mA
IOHD
VOHD = 3.85 V min
-75
mA
1) Maximum test duration 2ms, one output loaded at time
2) Incident wave switching is guaranteed on transmission lines with impedances as low as 50
Ω.
(*) All outputs loaded.
74ACT257
4/10


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