74AC257

4/11

DC SPECIFICATIONS

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

Symbol

Parameter

Test Condition

Value

Unit

(V)

-40 to 85°C

-55 to 125°C

Min.

Typ.

Max.

Min.

Max.

Min.

Max.

High Level Input

Voltage

3.0

2.1

1.5

2.1

2.1

V

4.5

3.15

2.25

3.15

3.15

5.5

3.85

2.75

3.85

3.85

Low Level Input

Voltage

3.0

1.5

0.9

0.9

0.9

V

4.5

2.25

1.35

1.35

1.35

5.5

2.75

1.65

1.65

1.65

High Level Output

Voltage

3.0

2.9

2.99

2.9

2.9

V

4.5

4.4

4.49

4.4

4.4

5.5

5.4

5.49

5.4

5.4

3.0

2.56

2.46

2.4

4.5

3.86

3.76

3.7

5.5

4.86

4.76

4.7

Low Level Output

Voltage

3.0

0.002

0.1

0.1

0.1

V

4.5

0.001

0.1

0.1

0.1

5.5

0.001

0.1

0.1

0.1

3.0

0.36

0.44

0.5

4.5

0.36

0.44

0.5

5.5

0.36

0.44

0.5

Input Leakage

Current

5.5

± 0.1

± 1

± 1

µA

Ioz

High Impedance

Output Leakage

Current

5.5

± 0.5

± 5

± 10

µA

Quiescent Supply

Current

5.5

440

80

µA

Dynamic Output

Current (note 1, 2)

5.5

75

50

mA

-75

-50

mA