DS1220AB/AD

3 of 9

ABSOLUTE MAXIMUM RATINGS*

Voltage on Any Pin Relative to Ground

-0.3V to +7.0V

Operating Temperature

0°C to 70°C; -40°C to +85°C for IND parts

Storage Temperature

-40°C to +70°C; -40°C to +85°C for IND parts

Soldering Temperature

260°C for 10 seconds

∗ 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

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

DS 1220AB Power Supply Voltage

4.75

5.0

5.25

V

DS 1220AD Power Supply Voltage

4.50

5.0

5.50

V

Logic 1

2.2

V

Logic 0

0.0

+0.8

V

± 5% for DS1220AB)

DC ELECTRICAL CHARACTERISTICS

± 10% for DS1220AD)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Input Leakage Current

-1.0

+1.0

µA

I/O Leakage Current

CE

≥ V

IH

≤ V

CC

-1.0

+1.0

µA

Output Current @ 2.4V

-1.0

mA

Output Current @ 0.4V

2.0

mA

5.0

10.0

mA

3.0

5.0

mA

(Commercial)

75

mA

(Industrial)

85

mA

Write Protection Voltage

(DS1220AB)

4.5

4.62

4.75

V

Write Protection Voltage

(DS1220AD)

4.25

4.37

4.5

V

CAPACITANCE

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Input Capacitance

510

pF

Input/Output Capacitance

512

pF