eatures8226; Core: ARM174; 32-bit Cortex174;-M0 CPU,frequency up to 48 MHz8226; Memories– 16 to 32 Kbytes of Flash memory– 6 Kbytes of SRAM with HW parity8226; CRC calculation unit8226; Reset and power management– Digital and I/Os supply: VDD = 2 V to 3.6 V– Analog supply: VDDA = from VDD to 3.6 V– Selected I/Os: VDDIO2 = 1.65 V to 3.6 V– Power-on/Power down reset (POR/PDR)– Programmable voltage detector (PVD)– Low power modes: Sleep, Stop, Standby–VBAT supply for RTC and backup registers8226; Clock management– 4 to 32 MHz crystal oscillator– 32 kHz oscillator for RTC with calibration– Internal 8 MHz RC with x6 PLL option– Internal 40 kHz RC oscillator– Internal 48 MHz oscillator with automatictrimming based on ext. synchronization8226; Up to 38 fast I/Os– All mappable on external interrupt vectors– Up to 24 I/Os with 5 V tolerant capabilityand 8 with independent supply VDDIO28226; 5-channel DMA controller8226; One 12-bit, 1.0 μs ADC (up to 10 channels)– Conversion range: 0 to 3.6 V– Separate analog supply: 2.4 V to 3.6 V8226; Up to 14 capacitive sensing channels fortouchkey, linear and rotary touch sensors8226; Calendar RTC with alarm and periodic wakeupfrom Stop/Standb