DS1270Y/AB

3 of 8

ABSOLUTE MAXIMUM RATINGS*

Voltage on Any Pin Relative to Ground

-0.3V to +6.0V

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

DS1270AB Power Supply Voltage

4.75

5.0

5.25

V

DS1270Y Power Supply Voltage

4.5

5.0

5.5

V

Logic 1 Input Voltage

2.2

V

Logic 0 Input Voltage

0

+0.8

V

DC ELECTRICAL

±=5% for DS1270AB)

CHARACTERISTICS

±=10% for DS1270Y)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Input Leakage Current

-4.0

+4.0

µA

I/O Leakage Current

-4.0

+4.0

µA

Output Current @ 2.4V

-1.0

mA

Output Current @ 0.4V

2.0

mA

1.0

1.5

mA

100

250

µA

Operating Current

85

mA

Write Protection Voltage (DS1270AB)

4.50

4.62

4.75

V

Write Protection Voltage (DS1270Y)

4.25

4.37

4.5

V

CAPACITANCE

°C)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Input Capacitance

20

40

pF

Output Capacitance

20

40

pF