General Description. The HT is a serial timekeeper IC which provides seconds, minutes, hours, day, date, month and year information. HT datasheet, HT circuit, HT data sheet: HOLTEK – Serial Timekeeper Chip,alldatasheet, datasheet, Datasheet search site for Electronic. HTSOPLF from HOLTEK >> Specification: Timekeeper IC, Date Time Format (Date/Month/Year Technical Datasheet: HTSOPLF Datasheet.

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A Hz crystal is required to provide the correct timing. Refer to the table shown below and follow the steps to write the data to the chip. The REST pin is also used to terminate either single-byte or burst mode data format.

In order to obtain the correct frequency, two additional load capacities C1, C2 are needed. Holtek reserves the right to alter its products without prior notification. The information appearing in this Data Sheet is believed to be accurate at the time of publication. REST remains at high level. This table illustrates the correlation between Command Byte and their bits: When this bit is in high level, the hour mode is selected otherwise it?

These two bits should first be specified in order to read from and write to the register array properly. This table illustrates the correlation between Command Byte and their bits: The value of the capacity depends on how accurate the crystal is. Data can be de. The Write Protect Register should be set first before restarting the system or before writing the new data to the system, and it should set as logic 1 in the read cycle.


These are stress ratings only. Download datasheet Kb Share this page. All other trademarks are the property datasheet their respective owners. Pad Description Pad No. Data outputs are read starting with bit 0.

Data can be delivered 1 byte at a time or in a burst of up to 8 datazheet. Note that the first data bit to be transmitted on the first falling edge after the last bit of the read command byte is written.

MikroElektronika Forum • View topic – Unit for use RTC HT / HT

In total, 16 clock pulses are needed for a single byte mode and 72 for burst mode. The clock halt bit must be set to logic 1 oscillator disabled. Two modes are available for transferring the data between the microprocessor and the Command byte For each data transfer, a Command Byte is initiated to specify which register is accessed.

Refer to the suggestion table of page 7. When this bit is set to logic 1, the clock oscillator is stopped and the chip goes into a low-power standby mode. When it is set as? Data inputs are entered starting with bit 0.

HT1381-8DIPLF PDF Datasheet浏览和下载

The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will datashert suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. In order to minimize. Stresses exceeding the range specified under? In order to obtain the correct frequency, two datasheer load capacities C1, C2 are needed.


The value of the capacity depends on how accurate the crystal is The read or ht13381 operating flowcharts are shown on the next page. The test mode is used by Holtek only for testing purposes.

Copy your embed code and put on your site: Elcodis is a trademark of Elcodis Company Ltd. When this bit is written to logic 0, the clock will start. Taipei Office 5F, No. The number of days in each month and leap years are automatically adjusted. Data contained in the clock register is in binary coded decimal format. For the most up-to-date information, please visit our web site dayasheet http: Functional ht1831 of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.

Both input and output data starts with bit 0. However, Holtek assumes no responsibility arising from the use of the specifications described.