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HT1381 DATASHEET PDF

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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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Data can be de- livered 1 byte at a time burst bytes Data inputs are entered starting with bit 0. One is in single-byte mode ad the other is in multiple-byte mode. These bits control the operation of the oscillator and so data can be written to the register array.

These two bits should first yt1381 specified in order to read from and write to the register array properly. Additional SCLK cycles are ignored. This table illustrates the correlation between Command Byte and their bits: The data transfer is illustrated on the next page. In order to minimize.

In order to obtain the correct frequency, two additional load capacities C1, C2 are needed. Download datasheet Kb Share this page. For data input, the data must be read after the rising edge datasehet SCLK. Both input and output data starts with bit 0. Data can be de.

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Data outputs are read starting with bit 0. The read or write operating flowcharts are shown on the next page.

HT1380/HT1381 — Serial Timekeeper Chip

Data can be delivered 1 datassheet at a time or in a burst of up to 8 bytes. The clock halt bit must be set to logic 1 oscillator disabled. In total, 16 clock pulses are needed for a single byte mode and 72 for burst mode. Taipei Office 5F, No.

Functional operation 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.

Only three wires daatsheet required: The test mode is used by Holtek only for testing purposes.

HT1381-8DIPLF PDF Datasheet浏览和下载

Only three wires are required:. Refer to the table shown below and follow the steps to write the data to the datashedt. 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.

Elcodis is a trademark of Elcodis Company Ltd. Refer to the table shown below and follow the steps to write the data to the chip.

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Holtek reserves the right to alter its products without prior notification. If used generally, unpredictable conditions may occur.

Both input and output data starts with bit 0. When this bit is written to logic 0, the clock will start. The REST pin is also used to terminate either single-byte or burst mode data format.

HT Datasheet pdf – Serial Timekeeper Chip (8SOP) – Holtek Semiconductor

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. The number of days in each month and leap years are automatically adjusted. Then, choose either single mode or burst mode to input the data However, Holtek assumes no responsibility arising from the use of the specifications described.

The value of the capacity depends on how accurate the crystal is Only three wires are required: This table illustrates the correlation between Command Byte and their bits: Data outputs are read starting with bit 0. Holtek reserves the right to alter its products without prior notification.