1.Core:ARM 32-bit Cortex TM-M3 CPU
1)72 MHz,90 DMIPS with 1.25 DMIPS/MHz
2)Single-cycle multiplication and hardware division
3)Nested interrupt controller with 43 maskable interrupt channels
4)Interrupt processing (down to 6 CPU cycles) with tail chaining

2.Memories:
1)32-to-128 Kbytes of Flash memory
2)6-to-20 Kbytes of SRAM

3.Clock,reset and supply management:
1)2.0 to 3.6 V application supply and I/Os
2)POR,PDR,and programmable voltage detector (PVD)
3)4-to-16MHz quartz oscillator
4)Internal 8 MHz factory-trimmed RC
5)Internal 32KHz RC
6)PLL for CPU clock
7)Dedicated 32KHz oscillator for RTC with calibration

4.Low power:
1)Sleep,Stop and Standby modes
2)VBAT supply for RTC and backup registers

5.2x12-bit,1us A/D converters (16-channel):
1)Conversion range:0 to 3.6 V
2)Dual-sample and hold capability
3)Synchronizable with advanced control timer
4)Temperature sensor

6.DMA:
1)7-channel DMA controller
2)Peripherals supported:timers,ADC,SPIs,I2Cs and USARTs
7.Debug mode:
1)Serial wire debug (SWD) and JTAG interfaces

8.Up to 80 fast I/O ports:
1)32/49/80 5 V-tolerant I/Os
2)All mappable on 16 external interrupt vectors
3)Atomic read/modify/write operations

9.Up to 7 timers:
1)Up to three 16-bit timers,each with up to 4 IC/OC/PWM or pulse counter
2)16-bit,6-channel advanced control timer:up to 6 channels for PWM output Dead time generation and emergency stop
3)2x16-bit watchdog timers (Independent and Window)
4)SysTick timer:a 24-bit downcounter

10.Up to 9 communication interfaces:
1)Up to 2xI2C interfaces (SMBus/PMBus)
2)Up to 3 USARTs (ISO 7816 interface,LIN,IrDA capability,modem control)
3)Up to 2 SPIs (18 Mbit/s)
4)CAN interface (2.0B Active)
5)USB 2.0 full speed interface