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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For the most up-to-date information, please visit our web site at http: A Hz crystal is required to. The input signal of SCLK is a sequence of a falling edge followed by a rising edge and it is used to synchronize the register data whether read or write. Dataaheet order to obtain the correct frequency, two additional load capacities C1, C2 are needed. 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.

HT1381-8SOPLF

Daatasheet this bit is set to logic 1, the clock oscillator is stopped and the chip goes into a low-power standby mode. A Hz crystal is required to provide the correct timing. Pad Description Pad No. 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.

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This table illustrates the correlation between Command Byte and their bits: The Write Protect bit cannot be written to in the burst mode.

When it is set as? In total, 16 clock pulses are needed for a single byte mode and 72 for burst mode. Elcodis is a trademark datwsheet Elcodis Company Ltd. In order to obtain the correct frequency, two additional load capacities C1, C2 are needed.

If used generally, unpredictable conditions may occur. When this bit is written to logic 0, the clock will start. The REST pin is also satasheet to terminate either single-byte or burst mode data format.

Refer to the suggestion table of page 7. Data can be de- livered 1 byte at a time burst bytes Holtek reserves the right to alter its products without prior notification. The test mode is used by Holtek only for testing purposes. For data input, the data must be read after the rising edge of SCLK.

The read or write operating flowcharts are shown on the next page. datasjeet

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HT Datasheet, HT PDF – Free Datasheets, Serial Timekeeper Chip

Two data transmission modes: Data can be delivered 1 hh1381 at a time or in a burst of up to 8 bytes. Download datasheet Kb Share this page. Data outputs are read starting with bit 0. Only three wires are required:. The clock halt bit must be set to logic 1 oscillator disabled.

HT1381 PDF Datasheet浏览和下载

For the most up-to-date information, please visit our web site at http: This table illustrates the correlation between Command Byte and their bits: Only three wires are required: When dataeheet bit is in high level, the hour mode is selected otherwise it? Data inputs are entered starting with bit 0.

The value of the capacity depends on how accurate the crystal is. REST remains at high level. Additional SCLK cycles are ignored. The value of the capacity depends on how accurate the crystal is