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 inputs are entered starting with bit 0.

In order to obtain the correct frequency, two additional load capacities C1, C2 are needed. Refer to the suggestion table of page 7.

HT1381-8DIPLF PDF Datasheet浏览和下载

All other trademarks are the property of their respective owners. Refer to the suggestion table of page 7.

Data can be written into the designated register only if the Write Protect signal WP is set to logic 0. When this bit is in high level, the hour mode is selected otherwise it? Elcodis is a trademark of Elcodis Company Ltd. 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 ht11381 modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise.

Holtek reserves the right to alter its products without prior notification. Both input and output data starts with bit 0.

The clock halt bit must be datashedt to logic 1 oscillator disabled. When this bit is written to logic 0, the clock will start. Then, choose either single mode or burst mode to input the data. The information appearing in this Data Sheet is believed to be accurate at the time of publication. The value of the capacity depends on how accurate the crystal is Data outputs are read starting with bit 0.

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Holtek Semicon HT – PDF Datasheet – Real-time Clocks In Stock |

In total, 16 clock pulses are needed for a single byte mode and 72 for burst mode. These bits control the operation of the oscillator and so data can be written to the register array. Then, choose either single mode or burst mode to input the data These two bits should first be specified in order to read from and write to the register array properly.

The REST pin is also used to terminate either single-byte or burst mode data format. Two data transmission modes: Two modes are available for transferring the data between the microprocessor and datashret Command byte For each data transfer, a Command Byte is initiated to specify which register is accessed. Both input and output data starts with bit 0.

There are eight xatasheet used to control the month data, etc. Only three wires are required: However, Holtek assumes no responsibility arising from the use of the specifications described. Only three wires are required:.

In order to minimize. Pad Description Pad No. datasheet

HT1380/HT1381 — Serial Timekeeper Chip

The value of the capacity depends on how accurate the crystal is. REST remains at high level. Data outputs are read starting with bit 0. We suggest that you can follow the table on the next datasheeh. When it is set as? Additional SCLK cycles are ignored.

HT datasheet, Pinout ,application circuits HT/HT — Serial Timekeeper Chip

The Write Protect bit cannot be written to in the burst mode. 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: The data bit outputs on the falling edge of the next eight SCLK cycles. In order to obtain the correct frequency, two additional load capacities C1, C2 are needed.

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Copy your embed code and put on your site: Taipei Office 5F, No. For the most up-to-date information, please visit our web site at http: 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. When this bit is set to logic 1, the clock oscillator is stopped and the chip goes into a low-power standby mode. For data input, the data must be read after the rising edge of SCLK. The value of the capacity depends on how accurate the crystal is.

A Hz crystal is required to provide the correct timing. Stresses exceeding the range specified under? This table illustrates the correlation between Command Byte and their bits: One is in single-byte mode ad the other is in multiple-byte mode. Data can be de.

These are stress ratings only. 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.

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.