DS1390 Datasheet PDF - Maxim Integrated

General Description

●The low-voltage serial-peripheral interface (SPI™) DS1390/DS1391 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

●♦Reset Output/Debounced Input (DS1391/DS1393)

●♦Separate SQW and INT Output (DS1392)

●♦Trickle-Charge Capability

●♦SPI Supports Modes 0 and 2 (DS1394)

●♦SPI Supports Modes 1 and 3 (DS1390/DS1391)

●♦3-Wire Interface (DS1392/DS1393)

●♦4MHz at 3.0V and 3.3V

●♦1MHz at 1.8V

●♦Three Operating Voltages: 1.8V ±5%, 3.0V ±10%, and 2.97 to 5.5V (DS1394: 3.3V ±10%)

●♦Industrial Temperature Range: -40°C to +85°C

●♦Underwriters Laboratories (UL) Recognized