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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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Then, choose either single mode or burst mode to input the data. Download datasheet Kb Share this page. A Hz crystal is required to provide the correct timing. Data can ht381 de. This table illustrates the correlation between Command Byte and their bits: The data bit outputs on the falling edge of dataseet next eight SCLK cycles.

The data transfer is illustrated on the next page. Data inputs are entered starting with bit 0.

Both input and output data starts with bit 0. When this bit is set to logic 1, the clock oscillator is stopped and the chip goes into a low-power standby mode.

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dxtasheet A Hz crystal is required to. If used generally, unpredictable conditions may occur. The clock halt bit must be set to logic 1 oscillator disabled.

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The Write Protect bit cannot be written to in the burst mode. Then, choose either single mode or burst mode to input the data Taipei Office 5F, No.

Data outputs are read starting with bit 0.

Only three wires are required:. This is to determine whether a read, write, or test cycle is operated and whether a single byte or burst mode transfer is to occur. A Hz crystal is required to provide the correct timing. Both input and output data starts with bit 0. 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 two bits should first be specified in order to read from and write to the register array properly. Additional SCLK cycles are ignored. Data outputs are read starting with bit 0. Two modes are available for transferring the data between the microprocessor and the Command byte For each data transfer, dahasheet Command Byte is initiated to specify which register is accessed.

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Two datasbeet transmission modes: Elcodis is a trademark of Elcodis Company Ltd. Stresses exceeding the range specified under? For data input, the data must be read after the rising edge of SCLK. Refer to the table shown below and follow the steps to write the data to the chip.

Holtek Semiconductor Inc. HT Series Datasheets. HT, HT Datasheet.

This table illustrates the correlation between Command Byte and their bits: All other trademarks are the property of their respective owners. Data contained in the clock register is in binary coded decimal format.

The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be 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.

Data can be de- livered 1 byte at a time burst bytes The test mode is used by Holtek only for testing purposes.