DS1221

4 of 8

ABSOLUTE MAXIMUM RATINGS*

Voltage on Any Pin Relative to Ground

-0.3V to +7.0V

Operating Temperature

0

°C to 70°C

Storage Temperature

-55

°C to +125°C

Soldering Temperature

260

°C for 10 seconds

Short Circuit Output Current

20 mA

*

This is a stress rating only and functional operation of the device at these or any other conditions

above those indicated in the operation sections of this specification is not implied. Exposure to

absolute maximum rating conditions for extended periods of time may affect reliability.

RECOMMENDED DC OPERATING CONDITIONS

(0

°C to 70°C)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Supply Voltage

4.5

5.0

5.5

V

1

Logic 1 Input

2.2

V

1

Logic 0 Input

-0.3

+0.8

V

1

Battery Input

2.0

4.0

V

1, 2

DC ELECTRICAL CHARACTERISTICS

(0

°C to 70°C; V

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Supply Current

5mA

3

Supply Voltage

V

1

Supply Current

80

mA

4, 10

Input Leakage

-1.0

+1.0

µA

Output Leakage

-1.0

+1.0

µA

CE0

Output @ 2.4V

-1.0

mA

5

CE0

Output @ 0.4V

4.0

mA

5

4.25

4.37

4.50

V

1

(0

°C to 70°C; V

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

CE0

V

Battery Current

0.1

µA

3

Battery Backup Current

100

µA

6, 7, 10