MC74HC4020A

http://onsemi.com

3

MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

DC Supply Voltage (Referenced to GND)

– 0.5 to + 7.0

V

DC Input Voltage (Referenced to GND)

V

DC Output Voltage (Referenced to GND)

V

DC Input Current, per Pin

± 20

mA

DC Output Current, per Pin

± 25

mA

± 50

mA

Power Dissipation in Still Air

Plastic DIP†

SOIC Package†

TSSOP Package†

750

500

450

mW

Storage Temperature Range

– 65 to + 150

_C

Lead Temperature, 1 mm from Case for 10 Seconds

Plastic DIP, SOIC or TSSOP Package

260

_C

Maximum ratings are those values beyond which device damage can occur. Maximum ratings

applied to the device are individual stress limit values (not normal operating conditions) and are

not valid simultaneously. If these limits are exceeded, device functional operation is not implied,

damage may occur and reliability may be affected.

†Derating — Plastic DIP: – 10 mW/

_C from 65_ to 125_C

SOIC Package: – 7 mW/

_C from 65_ to 125_C

TSSOP Package: − 6.1 mW/

_C from 65_ to 125_C

For high frequency or heavy load considerations, see Chapter 2 of the ON Semiconductor High−Speed CMOS Data Book (DL129/D).

RECOMMENDED OPERATING CONDITIONS

Symbol

Parameter

Min

Max

Unit

DC Supply Voltage (Referenced to GND)

2.0

6.0

V

DC Input Voltage, Output Voltage (Referenced to

GND)

0

V

Operating Temperature Range, All Package Types

– 55

+ 125

_C

Input Rise/Fall Time

(Figure 1)

0

0

0

0

1000

600

500

400

ns

Symbol

Parameter

Condition

V

Guaranteed Limit

Unit

−55 to 25

°C

≤85°C

≤125°C

Minimum High−Level Input Voltage

2.0

3.0

4.5

6.0

1.50

2.10

3.15

4.20

1.50

2.10

3.15

4.20

1.50

2.10

3.15

4.20

V

Maximum Low−Level Input Voltage

2.0

3.0

4.5

6.0

0.50

0.90

1.35

1.80

0.50

0.90

1.35

1.80

0.50

0.90

1.35

1.80

V

Minimum High−Level Output Voltage

2.0

4.5

6.0

1.9

4.4

5.9

1.9

4.4

5.9

1.9

4.4

5.9

V

3.0

4.5

6.0

2.48

3.98

5.48

2.34

3.84

5.34

2.20

3.70

5.20

Maximum Low−Level Output Voltage

2.0

4.5

6.0

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

V

This device contains protection

circuitry to guard against damage

due to high static voltages or electric

fields. However, precautions must

be taken to avoid applications of any

voltage higher than maximum rated

voltages to this high−impedance cir-

range GND

Unused inputs must always be

tied to an appropriate logic voltage

Unused outputs must be left open.