DS1307 datasheet(2/14 Pages) ARTSCHIP

2 / 14 page

DS1307

64 x 8, Serial, I

2C Real-Time Clock

www.artschip.com

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 the absolute maximum rating conditions for extended periods may affect

device reliability.

RECOMMENDED DC OPERATING CONDITIONS

(TA=0℃ to +70℃, TA =-40℃ to +85℃.) (Notes 1,2)

PARAMTER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage

Vcc

4.5

5.0

5.5

Logic 1 Input

VIH

2.2

Vcc+0.3

Logic 0 Input

VIL

-0.3

+0.8

VBAT Battery Voltage

VBAT

2.0

3.5

DC ELECTRICAL CHARACTERISTICS

(Vcc = 4.5V to 5.5V; TA=0℃ to +70℃, TA =-40℃ to +85℃.) (Notes 1,2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Input Leakage (SCL)

ILI

-1

µA

I/O Leakage (SDA, SQW/OUT)

ILO

-1

µA

Logic 0 Output (IOL =5mA)

VOL

0.4

Active Supply Current

(fSCL=100kHz)

ICCA

1.5

Standby Current

ICCS

(Note 3)

200

µA

VBAT Leakage Current

IBATLKG

Power-Fail Voltage (VBAT=3.0V)

VPF

1.216x

1.25x

1.28x

VBAT

DC ELECTRICAL CHARACTERISTICS

(Vcc = 0V, VBAT =3.0V; TA=0℃ to +70℃, TA=-40℃ to +85℃. ) (Notes 1,2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

VBAT Current (OSC ON);

SQW/OUT OFF

IBAT1

300

500

VBAT Current (OSC ON);

SQW/OUT ON(32kHz)

IBAT2

480

800

VBAT Data-Retention Current

(Oscillator Off)

IBATDR

100

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