AB-RTC-TA-32.768kHz-2

Real Time Clock Module with I2C Bus

Revision:

Initial Release 12/5/2024

Page 2

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t S

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Parameters

Symbol Min. Typ. Max. Units Notes

Frequency stability

∆f/f

±20

ppm VDD=3.0V,-20℃to

+70℃

±50

ppm

VDD=3.0V, -40℃ to

+85℃

Oscillation start time

tSTA

1

s

@25℃

Year Aging

fa

±3

ppm

First year@25℃

Frequency Characteristics (Unless otherwise specified, GND=0V,VDD = 2.5V ~ 5.5V, Ta=-40

℃~+85℃)

Block Diagram