Description
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.
Features
- Real-Time Clock Counts Hundredths of Seconds, Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap-Year Compensation Valid Up to 2100.
- Output Pin Configurable as Interrupt or Square Wave with Programmable Frequency of 32.768kHz, 8.192kHz, 4.096kHz, or 1Hz (DS1390/DS1393/ DS1394 Only).
- One Time-of-Day Alarm.
- Power-Fail Detect and Switch Circuitry.
- Reset Output/Debounced Input (DS1391/DS1393).
- Separate SQW and INT Output (DS1392.
DS1390_MaximIntegratedProducts.pdf