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DS1391U-3

Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle Charger

Product Category: Real Time Clocks
Mfr. Part #
DS1391U-3+
Manufacturer: Analog Devices Inc.
Package: Tube
Lead Free Status /RoHS Status:
Data Sheet: DS1391U-3+ Datasheet
Inventory: In Stock

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Mfr. Part #: DS1391U-3+

Product Details

Product Details

General Description

The low-voltage serial-peripheral interface (SPIâ„¢) 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

â— Real-Time Clock Counts Hundredths of Seconds, Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap-Year Compensation Valid Up to 2100
â— Output Pin Configurable as Interrupt or Square Wave with Programmable Frequency of 32.768kHz, 8.192kHz, 4.096kHz, or 1Hz (DS1390/DS1393/ DS1394 Only)
â— One Time-of-Day Alarm
â— Power-Fail Detect and Switch Circuitry
â— Reset Output/Debounced Input (DS1391/DS1393)
â— Separate SQW and INT Output (DS1392)
â— Trickle-Charge Capability
â— SPI Supports Modes 0 and 2 (DS1394)
â— SPI Supports Modes 1 and 3 (DS1390/DS1391)
â— 3-Wire Interface (DS1392/DS1393)
â— 4MHz at 3.0V and 3.3V
â— 1MHz at 1.8V
â— Three Operating Voltages: 1.8V Â±5%, 3.0V Â±10%, and 2.97 to 5.5V (DS1394: 3.3V Â±10%)
â— Industrial Temperature Range: -40Â°C to +85Â°C
â— Underwriters Laboratories (UL) Recognized

Applications

â— Hand-Held Devices
â— GPS/Telematics Devices
â— Embedded Time Stamping
â— Medical Devices

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Please send inquiry, we will respond immediately.

Mfr. Part #: DS1391U-3+