MC74AC257, MC74ACT257

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7

DC CHARACTERISTICS

Symbol

Parameter

(V)

74ACT

74ACT

Unit

Conditions

−40°C to

+85°C

Typ

Guaranteed Limits

Minimum High Level

Input Voltage

4.5

1.5

2.0

2.0

V

5.5

1.5

2.0

2.0

Maximum Low Level

Input Voltage

4.5

1.5

0.8

0.8

V

5.5

1.5

0.8

0.8

Minimum High Level

Output Voltage

4.5

4.49

4.4

4.4

V

5.5

5.49

5.4

5.4

4.5

−

3.86

3.76

V

−24 mA

5.5

−

4.86

4.76

−24 mA

Maximum Low Level

Output Voltage

4.5

0.001

0.1

0.1

V

5.5

0.001

0.1

0.1

4.5

−

0.36

0.44

V

24 mA

5.5

−

0.36

0.44

24 mA

Maximum Input

Leakage Current

5.5

−

±0.1

±1.0

mA

5.5

0.6

−

1.5

mA

Maximum

3−State

Current

5.5

−

±0.5

±5.0

mA

†Minimum Dynamic

Output Current

5.5

−

−

75

mA

5.5

−

−

−75

mA

Maximum Quiescent

Supply Current

5.5

−

8.0

80

mA

*All outputs loaded; thresholds on input associated with output under test.

†Maximum test duration 2.0 ms, one output loaded at a time.