DS1394 Low-Voltage SPI/3-Wire RTCs

DS1394 Low-Voltage SPI/3-Wire RTCs

The low-voltage serial-peripheral interface (SPI™) DS1390/DS1391/DS1394 and the low-voltage 3-wire DS1392/DS1393 real-time clocks (RTCs) are clocks/ calendars that provide hundredths of a second, seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is aut.

Features

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● Real-Time Clock Counts Hundredths of Seconds, Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap-Year Compensation Valid Up to 2100
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● Output Pin Configurable as Interrupt or Square Wave with Programmable Frequency of 32.768kHz, 8.192kHz, 4.096kHz, or 1Hz (DS1390/DS1393/ DS1394 Only)
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● One Time-of-Day Alarm
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● Power-Fail Detect and Switch Circuitry
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● Reset Output/Debounced Input (DS1391/DS1393)
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● Separate SQW and INT Output (DS1392)
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● Trickle-Charge Capability
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● SPI Supports Modes 0 and 2 (DS1394)
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● SPI Supports Modes 1 and 3 (DS1390/DS1391)
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● 3-Wire Interface (DS1392/DS13.