AB-RTC-XB-32.768kHz-2

Real Time Clock Module with I2C Bus

Revision:

Initial Release 12/10/2024

Page 1

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Description

1) HBM: Human Body Model, according to JESD22-A114.

2) MM: Machine Model, according to JESD22-A115.

Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and

functional operation of the device at those or any other conditions above those indicated in the operational sections of this specification is not

intended. Exposure to maximum rating conditions for extended periods may affect device reliability. The data sheet limits are not guaranteed if the

device is operated beyond the recommended operating conditions.

Parameters

Symbol

Min.

Typ.

Max.

Units

Notes

Supply Voltage

VDD

-0.3

6.5

V

Internal voltage

VOUT

-0.3

6.5

V

Input Voltage

VIN

GND-0.3

6.5

V

SCL,SDA input

Clock output Voltage

VOut1

GND-0.3

VDD+0.3

V

FOUT output

Output Voltage

VOut2

GND-0.3

6.5

V

SDA,/INT output

Backup battery voltage

VBAT

-0.3

6.5

V

Interface Voltage

VIO

-0.3

6.5

V

Operating Ambient Temperature Range

TOPR

-40

85

℃

Storage Temperature Range

TSTO

-55

125

℃

Reflow Temperature

+260

℃

See Reflow Profile

ESD Protection

VESD

4kV HBM,400V MM,2kV CDM,1),2)

Abracon’s AB-RTC-XB-32.768kHz-2 Real-Time Clock (RTC) uses I2C communication

interface to configure numerous features. These include a digital offset function, an alarm

function capability, a leap year autocorrection function, timer function, and automatic

backup battery function. The RTC has a broad operating power supply range of 1.6V to

5.5V with low power consumption. The RTC’s integrated 32.768kHz crystal provides

precise timing accuracy in a compact plastic SMD 3.2 x 2.5 mm package.



Build-in frequency adjusted 32.768kHz crystal unit



Low current consumption: 0.9uA (Typ. @VDD = 3.0VDC)



High stability: 5±23ppm @ +25

℃



Communication interface: I2C bus



Timer output function with adjustable period



Leap years autocorrection



Automated backup battery function



Digital offset function



REACH/RoHS II Compliant | MSL Level 3

Features

Typical Applications

Absolute Maximum Ratings



IoT, Wireless communication



Medical instrumentation



Utility meters



Data loggers and Appliances



Consumer electronics