■ Core: ARM® 32-bit Cortex® -M3 CPU
– 36 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 to 128 Kbytes of Flash memory
– 10 to 16 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
–V BAT 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 and USARTs
■ 1 × 12-bit, 1 µs A/D converter (up to 16 channels)
– Conversion range: 0 to 3.6 V
– Temperature sensor
■ 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
■ Six timers
– Three 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter
– 2 watchdog timers (Independent and Window)
– SysTick timer: 24-bit downcounter
■ Up to 7 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)
■ CRC calculation unit, 96-bit unique ID
■ ECOPACK® package