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Features

? ARM 32-bit Cortex?-M3 CPU Core

– 72 MHz maximum frequency, 1.25 DMIPS/MHz (Dhrystone 2.1)

performance at 0 wait state memory access

– Single-cycle multiplication and hardware division

? Memories

– 64 or 128 Kbytes of Flash memory

– 20 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-16 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

? 2 x 12-bit, 1 ?s A/D converters (up to 16

channels)

– Conversion range: 0 to 3.6 V

– Dual-sample and hold capability

– Temperature sensor

? DMA

– 7-channel DMA controller

– Peripherals supported: timers, ADC, SPIs, I2Cs and USARTs

? Up to 80 fast I/O ports

– 26/37/51/80 I/Os, all mappable on 16 external interrupt vectors and almost all 5 V-tolerant

? Debug mode

– Serial wire debug (SWD) & JTAG interfaces

? 7 timers

– Three 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and

quadrature (incremental) encoder input

– 16-bit, motor control PWM timer with deadtime generation and emergency stop

– 2 watchdog timers (Independent and

Window)

– SysTick timer 24-bit downcounter

? Up to 9 communication interfaces

– Up to 2 x I2C interfaces (SMBus/PMBus)

– Up to 3 USARTs (ISO 7816 interface, LIN,

IrDA capability, modem control)

– Up to 2 SPIs (18 Mbit/s)

– CAN interface (2.0B Active)

– USB 2.0 full-speed interface

? CRC calculation unit, 96-bit unique ID

? Packages are ECOPACK?