IN74HC221A

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

A, B, RESET

±20

±30

mA

DC Output Current, per Pin

±25

mA

±50

mA

750

500

mW

Tstg

Storage Temperature

-65 to +150

°C

Lead Temperature, 1 mm from Case for 10 Seconds

(Plastic DIP or SOIC Package)

260

°C

Functional operation should be restricted to the Recommended Operating Conditions.

SOIC Package: : - 7 mW/

°C from 65° to 125°C

RECOMMENDED OPERATING CONDITIONS

Symbol

Parameter

Min

Max

Unit

DC Supply Voltage (Referenced to GND)

6.0

V

DC Input Voltage, Output Voltage (Referenced to GND)

0

V

Operating Temperature, All Package Types

-55

+125

°C

Input Rise and Fall Time - RESET

(Figure 2)

0

0

0

1000

500

400

A or B

-

No Limit

ns

External Timing Resistor

10

2.0

1000

1000

k

Ω

External Timing Capacitor

0

No Limit

µF

*

3.0 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

outputs must be left open.

Rev. 00