Perpetual Calendar Using the HT1382

PublishTime：2021-06-15

■The HT1382 is a low power real time clock device which includes two serial interfaces: I2C or 3-wire. The interface mode is selected by the selected device type. The device provides both clock and calendar information in BCD format and also includes alarm functions that can be read or setup by an external device, which is usually an MCU and which will be the master device. The calendar is accurate until the year 2099 and includes automatic leap year correction.
■An external 32768Hz crystal is used as the device oscillator for device timing for which is provided integrated crystal load capacitances of 12.5pF. The device includes a crystal oscillator temperature compensation function and internal power control circuitry which detects power failures and automatically switches to a battery supply when a power failure occurs.

Brand of Product：	HOLTEK
Part#：	HT1382 、 HT66F0185 、 HT1382v160 、 HT66F0175 More Part#
Product Category：	More
Application：	More
Data Type：	Application note & Design Guide More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	DIP-A;SOP-A;MSOP-A
Language：	English Chinese Chinese and English Japanese
Date of Creation：	November 21, 2019
Version Number：	V1.10
Data Encoding：	AN0258EN
Data Size：	1.2 MB

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Integrated Circuits