特点:
Core: ARM 32-bit Cortex™-M3 CPU with MPU
Memories: 768 Kbytes to 1 Mbyte of Flash memory/96 Kbytes of SRAM
Low power: Sleep, Stop and Standby modes/VBAT supply for RTC and backup registers
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-16 MHz crystal oscillator
3 × 12-bit, 1 μs A/D converters (up to 21 channels): Conversion range: 0 to 3.6 V/Triple-sample and hold capability/Temperature sensor
2 × 12-bit D/A converters
DMA: 12-channel DMA controller
Debug mode: Serial wire debug (SWD) & JTAG interfaces/Cortex-M3 Embedded Trace Macrocell™
Up to 112 fast I/O ports: 51/80/112 I/Os, all mappable on 16 external interrupt vectors and almost all 5 V-tolerant
Up to 17 timers: Up to ten 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
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