品牌 | holtek | 型號 | ht1380/1381 |
批號 | 1010 | 封裝 | 8sop/dip |
營銷方式 | 現(xiàn)貨 | 產(chǎn)品性質(zhì) | 熱銷 |
處理信號 | 模擬信號 | 工藝 | 半導(dǎo)體集成 |
ht1380/ht1381 -- serial timekeeper chip
general description
the ht1380/ht1381 is a serial timekeeper ic which provides seconds, minutes, hours, day, date, month and year information. the number of days in each month and leap years are automatically adjusted. the ht1380/ht1381 is designed for low power consumption and can operate in two modes: one is the 12-hour mode with an am/pm indicator, the other is the 24-hour mode.
the ht1380/ht1381 has several registers to store the corresponding information with 8-bit data format. a 32768hz crystal is required to provide the correct timing. in order to minimize the pin number, the ht1380/ht1381 use a serial i/o transmission method to interface with a microprocessor. only three wires are required: (1) restb, (2) sclk and (3) i/o. data can be delivered 1 byte at a time or in a burst of up to 8 bytes.
features
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