Rainbow-electronics DS3231 Manual de usuario descargar pdf (Pagina 2)

DS3231

Extremely Accurate I

C-Integrated

RTC/TCXO/Crystal

2 _____________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

RECOMMENDED DC OPERATING CONDITIONS

= T

MIN

to T

MAX

, unless otherwise noted.) (Notes 1, 2)

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.

Voltage Range on V

, V

BAT

, 32kHz, SCL, SDA, RST,

INT/SQW Relative to Ground.............................-0.3V to +6.0V

Operating Temperature Range

(noncondensing) .............................................-40°C to +85°C

Junction Temperature......................................................+125°C

Storage Temperature Range ...............................-40°C to +85°C

Lead Temperature

(Soldering, 10s).....................................................+260°C/10s

Soldering Temperature....................................See the Handling,

PC Board Layout, and Assembly section.

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

2.3 3.3 5.5 V

Supply Voltage

BAT

2.3 3.0 5.5 V

Logic 1 Input SDA, SCL V

0.7 x

0.3

Logic 0 Input SDA, SCL V

-0.3

+0.3 x

Pullup Voltage

(SDA, SCL, 32kHz, INT/SQW)

= 0V

5.5V

ELECTRICAL CHARACTERISTICS

= 2.3V to 5.5V, V

> V

BAT

, T

= T

MIN

to T

MAX

, unless otherwise noted.) (Typical values are at V

= 3.3V, V

BAT

= 3.0V, and

= +25°C, unless otherwise noted.) (Notes 1, 2)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

= 3.63V

200

Active Supply Current I

CCA

(Notes 3, 4)

= 5.5V

300

µA

= 3.63V

110

Standby Supply Current I

CCS

C bus inactive, 32kHz

output on, SQW output off

(Note 4)

= 5.5V

170

µA

= 3.63V

575

Temperature Conversion Current

CCSCONV

C bus inactive, 32kHz

output on, SQW output off

= 5.5V

650

µA

Power-Fail Voltage V

2.45 2.575 2.70

Logic 0 Output, 32kHz, INT/SQW,

SDA

= 3mA

0.4

Logic 0 Output, RST

= 1mA

0.4

Output Leakage Current 32kHz,

INT/SQW, SDA

Output high impedance

-1

+1 µA

Input Leakage SCL

-1

+1 µA

RST Pin I/O Leakage

RST high impedance (Note 5)

-200

+10

µA

BAT

Leakage Current

Active)

BATLKG

100

1 2 3 4 5 6 7 ... 18 19

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Rainbow-electronics DS3231 Manual de usuario Pagina 2

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