Nonvolatile memory (kByte)1RAM (kByte)0.125ADC type16-bit Sigma DeltaNumber of ADC channels4Number of GPIOs10FeaturesBrown out detector, Real-time clock, Sigma deltaUART0USBNoNumber of I2Cs1SPI1Number of comparator channels0Timers - 16-bit1Bootloader (BSL)UARTOperating temperature range (°C)-40 to 105RatingCatalog