• Core: ARM® 32-bit Cortex®-M3 CPU
– 24 MHz maximum frequency,
1.25 DMIPS/MHz (Dhrystone 2.1)
performance
– Single-cycle multiplication and hardware
division
• Memories
– 16 to 128 Kbytes of Flash memory
– 4 to 8 Kbytes of SRAM
• Clock, reset and supply management
– 2.0 to 3.6 V application supply and I/Os
– POR, PDR, and programmable voltage
detector (PVD)
– 4-to-24 MHz crystal oscillator
– Internal 8 MHz factory-trimmed RC
– Internal 40 kHz RC
– PLL for CPU clock
– 32 kHz oscillator for RTC with calibration
• Low power
– Sleep, Stop and Standby modes
– VBAT supply for RTC and backup registers
• Debug mode
– Serial wire debug (SWD) and JTAG interfaces
• DMA
– 7-channel DMA controller
– Peripherals supported: timers, ADC, SPIs,
I2Cs, USARTs, and DACs
• 1 × 12-bit, 1.2 µs A/D converter (up to 16
channels)
– Conversion range: 0 to 3.6 V
– Temperature sensor
• 2 × 12-bit D/A converters
• Up to 80 fast I/O ports
– 37/51/80 I/Os, all mappable on 16 external
interrupt vectors and almost all 5 V-tolerant