DS3232M

±5ppm, I2C Real-Time Clock with SRAM

2

Maxim Integrated

Voltage Range on Any Pin Relative to GND ........-0.3V to +6.0V

Operating Temperature Range.......................... -40NC to +85NC

Storage Temperature Range............................ -55NC to +125NC

Junction Temperature .....................................................+150NC

Lead Temperature (soldering, 10s) ................................+300NC

Soldering Temperature (reflow) ......................................+260NC

ABSOLUTE MAXIMUM RATINGS

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

tion 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.

RECOMMENDED OPERATING CONDITIONS

(TA = -40NC to +85NC, unless otherwise noted.) (Note 2)

ELECTRICAL CHARACTERISTICS—FREQUENCY AND TIMEKEEPING

(VCC or VBAT = +3.3V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VCC = +3.3V, VBAT = +3.0V, and

TA = +25NC, unless otherwise noted.) (Note 2)

DC ELECTRICAL CHARACTERISTICS—GENERAL

(VCC = +2.3V to +4.5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VCC = +3.3V, VBAT = +3.0V, and

TA = +25NC, unless otherwise noted.) (Note 2)

SO

Junction-to-Ambient Thermal Resistance (

qJA) ........120°C/W

Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer

board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.

PACKAGE THERMAL CHARACTERISTICS (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

1Hz Frequency Tolerance

D

f/fOUT

Measured over R 10s interval

Q

5

ppm

1Hz Frequency Stability vs. VCC

Voltage

D

f/V

Q

1

ppm/V

Timekeeping Accuracy

tKA

Q

0.432

Seconds/

Day

32kHz Frequency Tolerance

D

f/fOUT

Q

2.5

%

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage

VCC

2.3

3.3

4.5

V

VBAT

2.3

3.0

4.5

Logic 1

VIH

0.7 x

VCC

VCC +

0.3

V

Logic 0

VIL

-0.3

0.3 x

VCC

V

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Active Supply Current

(I2C Active)

ICCA

(Note 3)

125

250

µA

Standby Supply Current

(I2C Inactive)

ICCS

(Notes 3, 4)

100

175

µA