Real-Time Clocks

2

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ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Operating Temperature Range (Noncondensing)

Commercial.........................................................0°C to +70°C

Industrial ..........................................................-40°C to +85°C

Storage Temperature.........................................-55°C to +125°C

Soldering Temperature .....................See IPC/JEDEC J-STD-020

Specification (Note 1)

Soldering Temperature (leads, 10 seconds) ...................+260°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

(-5)

4.5

5.0

5.5

Supply Voltage (Note 3)

(-3)

2.7

3.0

3.7

V

(Note 3)

2.5

3.0

3.7

V

(-5)

2.5

3.0

5.2

(-3)

3.7

V

(-5)

2.2

0.3

Input Logic 1 (Note 3)

(-3)

2.0

0.3

V

(-5)

-0.3

+0.8

Input Logic 0 (Note 3)

(-3)

-0.3

+0.6

V

(-5)

25

50

(Note 4)

(-3)

15

30

mA

(-5)

1.0

3.0

(-3)

0.5

2.0

mA

Input Leakage

-1.0

+1.0

µA

I/O Leakage

(Note 6)

-1.0

+1.0

µA

(-5), -1.0mA

2.4

Output Logic 1 Voltage (Note 3)

(-3), -0.4mA

2.4

V

(-5), +2.1mA

0.4

Output Logic 0 Voltage

AD0–AD7, IRQ, SQW (Note 3)

(-3), +0.8mA

0.4

V

(-5), +10mA

0.4

Output Logic 0 Voltage

PWR (Note 3)

(-3), +4mA

0.4

V

(-5)

4.25

4.37

4.5

Power-Fail Voltage (Note 3)

(-3)

2.5

2.6

2.7

V

VRT Trip Point

(Note 3)

1.3

V