The STM32F101x4 and STM32F101x6 Low-density access line family incorporates the high-performance ARM Cortex™-M3 32-bit RISC core operating at a 36 MHz frequency, high-speed embedded memories (Flash memory of 16 to 32 Kbytes and SRAM of 4 to 6 Kbytes), and an extensive range of enhanced peripherals and I/Os connected to two APB buses. All devices offer standard communication interfaces (one I2C, one SPI, and two USARTs), one 12-bit ADC and up to two general-purpose 16-bit timers.
Features
■ Core: ARM 32-bit Cortex™-M3CPU
– 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
– 16 to 32 Kbytes of Flash memory
– 4 to 6 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
–VBATsupply 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
