Features:
■Core: ARM 32-bit Cortex™-M3 CPU
– 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
–V BAT supply for RTC and backup registers
■2 x 12-bit, 1 µs 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 dead-time generation and emergency stop
– 2 watchdog timers (Independent and Window)
– SysTick timer: a 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
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