Summary

  • CPU - Cortex-M4F
  • NVM - 512KB with NVMController which can be manipulated by provided library called pstorage.
  • SDRAM - 64KB
  • Oscillators - Existing RC oscillator(LFCLK) + HFCLK(32MHZ). Doesn’t need external xTal for RF.
  • Timer - 5 Available.
  • Serial - 1 UART + 3 more Serials for(I2C/ SPI)

https://devzone.nordicsemi.com/blogs/792/new-features-in-nrf52/