Features
• Core: ARM® 32-bit Cortex®-M0 CPU,
frequency up to 48 MHz
• Memories
– 128 to 256 Kbytes of Flash memory
– 32 Kbytes of SRAM with HW parity
• CRC calculation unit
• Reset and power management
– Digital & I/Os supply: VDD = 2.0 V to 3.6 V
– Analog supply: VDDA = VDD 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 registers
• 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 automatic
trimming based on ext. synchronization
• Up to 88 fast I/Os
– All mappable on external interrupt vectors
– Up to 69 I/Os with 5V-tolerant capability
and 19 with independent supply VDDIO2
• 12-channel DMA controller
• One 12-bit, 1.0 µs ADC (up to 16 channels)
– Conversion range: 0 to 3.6 V
– Separate analog supply: 2.4 V to 3.6 V
• One 12-bit D/A converter (with 2 channels)
• Two fast low-power analog comparators with
programmable input and output
• Up to 24 capacitive sensing channels for
touchkey, linear and rotary touch sensors
• Calendar RTC with alarm and periodic wakeup
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