74VHC257(2004) Просмотр технического описания (PDF) - STMicroelectronics

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74VHC257
(Rev.:2004)

QUAD 2 CHANNEL MULTIPLEXER (3-STATE)

STMicroelectronics 

74VHC257

Table 6: DC Specifications

Symbol

Parameter

VIH High Level Input

Voltage

VIL Low Level Input

Voltage

VOH High Level Output

Voltage

VOL Low Level Output

Voltage

IOZ High Impedance

Output Leakage

Current

II

Input Leakage

Current

ICC Quiescent Supply

Current

Test Condition

Value

VCC

(V)

2.0

3.0 to

5.5

2.0

3.0 to

5.5

2.0

3.0

4.5

3.0

4.5

2.0

3.0

4.5

3.0

4.5

5.5

0 to

5.5

IO=-50 µA

IO=-50 µA

IO=-50 µA

IO=-4 mA

IO=-8 mA

IO=50 µA

IO=50 µA

IO=50 µA

IO=4 mA

IO=8 mA

VI = VIH or VIL

VO = VCC or GND

VI = 5.5V or GND

TA = 25°C

-40 to 85°C -55 to 125°C Unit

Min. Typ. Max. Min. Max. Min. Max.

1.5

0.7VCC

1.5

1.5

0.7VCC

0.7VCC

V

0.5

0.3VCC

0.5

0.3VCC

0.5

0.3VCC V

1.9 2.0

1.9

1.9

2.9 3.0

2.9

2.9

4.4 4.5

4.4

4.4

V

2.58

2.48

2.4

3.94

3.8

3.7

0.0 0.1

0.1

0.1

0.0 0.1

0.1

0.1

0.0 0.1

0.1

0.1 V

0.36

0.44

0.55

0.36

0.44

0.55

±0.25

± 2.5

± 2.5 µA

± 0.1

±1

± 1 µA

5.5 VI = VCC or GND

4

40

40 µA

4/14

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