DS1390U-33

低电压SPI / 3线接口RTC，带有涓流充电器 Low-Voltage SPI/3-Wire RTCs with Trickle Charger

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