74ACT20 datasheet(3/8 Pages) ONSEMI

3 / 8 page

MC74AC20, MC74ACT20

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AC CHARACTERISTICS

Symbol

Parameter

VCC*

(V)

74AC

Unit

TA = +25°C

CL = 50 pF

TA = −40°C

to +85°C

CL = 50 pF

Min

Typ

Max

Min

Max

tPLH

Propagation Delay

3.3

2.0

6.0

8.5

1.5

10.0

5.0

1.5

5.0

7.0

1.0

8.0

tPHL

Propagation Delay

3.3

1.5

5.0

7.0

1.0

9.0

5.0

1.5

4.0

6.0

1.0

7.0

*Voltage Range 3.3 V is 3.3 V ±0.3 V.

Voltage Range 5.0 V is 5.0 V ±0.5 V.

DC CHARACTERISTICS

Symbol

Parameter

VCC

(V)

74ACT

Unit

Conditions

TA = +25°C

TA =

−40°C to

+85°C

Typ

Guaranteed Limits

VIH

Minimum High Level

Input Voltage

4.5

1.5

2.0

VOUT = 0.1 V

5.5

1.5

2.0

or VCC − 0.1 V

VIL

Maximum Low Level

Input Voltage

4.5

1.5

0.8

VOUT = 0.1 V

5.5

1.5

0.8

or VCC − 0.1 V

VOH

Minimum High Level

Output Voltage

4.5

4.49

4.4

IOUT = − 50 mA

5.5

5.49

5.4

*VIN = VIL or VIH

4.5

−

3.86

3.76

IOH

− 24 mA

5.5

−

4.86

4.76

− 24 mA

VOL

Maximum Low Level

Output Voltage

4.5

0.001

0.1

IOUT = 50 mA

5.5

0.001

0.1

*VIN = VIL or VIH

4.5

−

0.36

0.44

IOH

24 mA

5.5

−

0.36

0.44

24 mA

IIN

Maximum Input

Leakage Current

5.5

−

±0.1

±1.0

VI = VCC, GND

DICCT

Additional Max. ICC/Input

5.5

0.6

−

1.5

VI = VCC − 2.1 V

IOLD

†Minimum Dynamic

Output Current

5.5

−

VOLD = 1.65 V Max

IOHD

5.5

−

−75

VOHD = 3.85 V Min

ICC

Maximum Quiescent

Supply Current

5.5

−

4.0

VIN = VCC or GND

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

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

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