STM32L052 User Reference Manual Guide

●The STM32L052R8T6 is an ultra-low-power STM32 L0 series 32-bit Microcontroller incorporates the connectivity power of the universal serial bus (USB 2.0 crystal-less) with the high-performance ARM Cortex-M0+ RISC core operating at a 32MHz frequency. It features a memory protection unit (MPU), high-speed embedded memories (64kB of Flash program memory, 2kB of data EEPROM and 8kB of RAM) plus an extensive range of enhanced I/Os and peripherals. This device provide high power efficiency for a wide range of performance. It is achieved with a large choice of internal and external clock sources, an internal voltage adaptation and several low-power modes.

● 0.95 DMIPS/MHz

● Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds

● Ultralow-power POR/PDR

● Programmable voltage detector (PVD)

● 1 to 25MHz 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 RC

● Internal self calibration of 48MHz RC for USB

● PLL for CPU clock

● Pre-programmed bootloader - USART, SPI supported

● Serial wire debug supported

● 20byte Backup register

● Sector protection against R/W operation

● 7-channel DMA Controller

● USB 2.0 crystal-less, battery charging detection and LPM

● 2 x Watchdogs (independent/window)

● CRC calculation unit

● 96-bit Unique ID