DA14681 Bluetooth Low Energy 4.
2 SoC FINAL General description line batteries The DA14681 is a flexible System-on-Chip combining an application processor, memories, cryptography engine, power management unit, digital and analog peripherals and a Bluetooth Low Energy MAC engine and radio transceiver.
The DA14681 is based on an ARM® Cortex®-M0 CPU  Charger (up to 5.
0 V) with programmable curves  High accuracy state-of-charge fuel gauge  Programmable threshold for brownout detection  Digitally controlled oscillators and PLL  16 MHz crystal oscillator  16 MHz RC oscillator  32 kHz crystal and RC oscillator delivering up to 84 DMIPS and provides a flexible  11.
7 kHz RCX oscillator ...

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