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The MAX31331EWC ultra-low-power real-time clock (RTC) is a timer device with a nominal timing current consumption of 65 nA for extended battery life. The device can use any capacitive load (CL) size crystal and a wide range of crystals are available. The device is accessed via an I2C serial interface.

The MAX31331EWC is available in a lead-free (Pb)/RoHS-compliant 12-pin, 0.4mm pitch 1.66mm x 1.26mm WLP package and a 10-pin 3mm x 3mm TDFN package.

The device supports an extended temperature range of -40°C to +85°C.

Features

Ultra-low power consumption for longer run times

Timing current: 65nA

Timing voltage range: 1.1V to 5.5V

Automatic switchover to standby power in the event of a power failure

Trickle charger available for external supercapacitors or rechargeable batteries

Compact size and low BOM

1.66mm x 1.26mm 12-pin WLP package

3mm x 3mm 10-pin TDFN package

No external load capacitors required

Flexible and easy to use

Supports a wide range of external crystal oscillators (no external load required)

Frequency correction resolution <0.5ppm

Interface voltage range: 1.62V to 5.5V

Value added features available for ease of use

Event detection using dedicated pins

Provides timestamps for various events

Low battery voltage detection

1/128 second register

Alarm and countdown timers

32 bytes of user RAM

Applications

Medical

Wearable devices

Portable meters

Telematics

Industrial

Internet of Things (IoT)

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.