ARM®Cortex®-M3 microcontroller, 32-bit, 2V, 128 KB, LQFP-48

STM32F103x8 / STM32F103xB
Medium-density performance line ARM®-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 com. interfaces

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 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 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®