The STM32L151R8T6A is an ultra-low-power STM32 L1 series 32-bit Microcontroller incorporates the connectivity power of the universal serial bus (USB) with the high-performance ARM Cortex-M3 RISC core operating at a frequency of 32MHz (33.3 DMIPS). It features a memory protection unit (MPU), high-speed embedded memories (Flash memory up to 64kB and RAM up to 10KB) and an extensive range of enhanced I/Os and peripherals connected to two APB buses. The devices offer one 12-bit ADC, two DACs, two ultra-low-power comparators, six general-purpose 16-bit timers and two basic timers, which can be used as time bases. The device contain standard and advanced communication interfaces - two I²Cs, two SPIs, three USARTs and an USB.
● 1.25 DMIPS/MHz (Dhrystone 2.1)
● Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
● Ultralow-power POR/PDR
● Programmable voltage detector (PVD)
● 1 to 24MHz Crystal oscillator
● 32kHz Oscillator for RTC with calibration
● High-speed internal 16MHz factory-trimmed RC (±1%)
● Internal low-power 37kHz RC
● Internal multispeed low-power 65kHz to 4.2MHz clock
● PLL for CPU clock and USB (48MHz)
● Pre-programmed bootloader - USART supported
● Serial wire debug supported
● JTAG and trace supported
● 7-channel DMA Controller
● 2 x Watchdog timers (Independent and window)
● Up to 20 capacitive sensing channels supporting touchkey, linear and rotary touch sensors
● CRC calculation unit
● 96-bit Unique ID
