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ANALOG DEVICES DS1391U-3+
Alarm RTC IC, Date Time Format (Day/Date/Month/Year hh:mm:ss:hh), SPI, 2.7 V to 3.3 V, µSOP-10
- Manufacturer:
- ANALOG DEVICES ANALOG DEVICES
- Manufacturer Part No:
- DS1391U-3+
- Order Code:
- 2515394
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- Technical Datasheet:
- DS1391U-3+ Datasheet
- ECAD / MCAD
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Product Overview
The DS1391U-3+ is a low voltage SPI real time clock (RTC) with trickle charger in 10 pin µSOP package. It has typical operating voltage of 3V. This clock/calendar provides hundredths of seconds, seconds, minutes, hours, day, date, month and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days including leap year compensation valid up to 2100. The clock operates in either 24hour or 12hour format with an AM/PM indicator. One programmable time of day alarm is provided. A temperature compensated voltage reference monitors the status of VCC and automatically disables bus interface and switches to backup supply if a power failure is detected. The DS1391 replaces SQW/complementary INT pin with complementary RST output/debounced input. The device is programmed serially through SPI compatible bidirectional bus. The DS1391 is used in GPS/telematics devices, embedded time stamping applications.
- Supply voltage range from 2.7V to 3.3V
- Operating temperature range from -40°C to 85°C
- Power fail detect and switch circuitry
- SPI supports modes 1 and 3
- SCLK frequency of 4MHz ( 2.7V ≤ VCC ≤ 5.5V)
- UL recognized
- VCC active supply current of 2mA and VCC standby current of 80μA
- Time keeping current of 500nA
Applications
Clock & Timing, Medical, Portable Devices
Footnotes
ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party
Warnings
Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
Product Information
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- :
- Day; Date; Month; Year
- :
- HH:MM:SS:hh
- :
- Alarm RTC
- :
- 2.7V
- :
- 3.3V
- :
- SOP
- :
- 10Pins
- :
- SPI
- :
- -40°C
- :
- 85°C
- :
- -
- :
- -
- :
- MSL 1 - Unlimited
Technical Documents (1)
Available for back order
More stock available to supplier lead times which is approximately 4/7/25
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You can reserve stock now just order your desired quantity and checkout as normal. The quantity that cant be dispatched now will be placed on back order and sent as soon as we get a delivery from our supplier. You only get charged when the products are dispatched to you.
Due to market conditions delivery times are for general guidance only and may be subject to change at short notice
¥1,181.90
(
¥1,300.09
Inc. JCT)
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| Quantity | Price (Incl JCT) | Your Price (Incl JCT) |
|---|---|---|
| 1+ | ¥1,181.90 (¥1,300.09) | ( ) |
| 10+ | ¥788.46 (¥867.31) | ( ) |
| 50+ | ¥622.30 (¥684.53) | ( ) |
| 100+ | ¥569.01 (¥625.91) | ( ) |
| 250+ | ¥512.58 (¥563.84) | ( ) |
| 500+ | ¥489.06 (¥537.97) | ( ) |
| 1000+ | ¥489.01 (¥537.91) | ( ) |
| 2500+ | ¥489.00 (¥537.90) | ( ) |
| Quantity | Price (Incl JCT) | Your Price (Incl JCT) |
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