Flash memory (kByte)256RAM (kByte)32ADC type12-bit SARNumber of ADC channels9, 13, 21, 26Number of GPIOs20, 28, 43, 59, 73UART5Number of I2Cs3SPI2Features5-V-tolerant I/Os, AES encryption with KeyStore, Comparator, DMA, Dual-bank flash, General purpose, RTC, VBATSupply voltage (min) (V)1.62Supply voltage (max) (V)3.6Operating temperature range (°C)-40 to 125RatingAutomotive