STM32L151CBU6A Datasheet PDF - ST Microelectronics

The STM32L151CBU6A 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 128kB and RAM up to 16KB) 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 touch key, linear and rotary touch sensors

● CRC calculation unit

● 96-bit Unique ID