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STM32L052K8U6TR

STM32L052K8U6TR

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STM32L052K8U6TR Overview

The ultra-low-power STM32L052x6/8 microcontrollers incorporate the connectivity power of the universal serial bus (USB 2.0 crystal-less) with the high-performance Arm? Cortex?-M0+ 32-bit RISC core operating at a 32 MHz frequency, a memory protection unit (MPU), high-speed embedded memories (64 Kbytes of Flash program memory, 2 Kbytes of data EEPROM and 8 Kbytes of RAM) plus an extensive range of enhanced I/Os and peripherals.

The STM32L052x6/8 devices 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.
The STM32L052x6/8 devices offer several analog features, one 12-bit ADC with hardware oversampling, one DAC, two ultra-low-power comparators, several timers, one low-power timer (LPTIM), three general-purpose 16-bit timers and one basic timer, one RTC and one SysTick which can be used as timebases. They also feature two watchdogs, one watchdog with independent clock and window capability and one window watchdog based on bus clock.
Moreover, the STM32L052x6/8 devices embed standard and advanced communication interfaces: up to two I2C, two SPIs, one I2S, two USARTs, a low-power UART (LPUART), and a crystal-less USB. The devices offer up to 24 capacitive sensing channels to simply add touch sensing functionality to any application.
The STM32L052x6/8 also include a real-time clock and a set of backup registers that remain powered in Standby mode.
The ultra-low-power STM32L052x6/8 devices operate from a 1.8 to 3.6 V power supply (down to 1.65 V at power down) with BOR and from a 1.65 to 3.6 V power supply without BOR option. They are available in the -40 to +125 °C temperature range. A comprehensive set of power-saving modes allows the design of low-power applications.

ECAD Model

Symbol

STM32L052K8U6TR

Footprint

STM32L052K8U6TR

Features

  • 1.65 V to 3.6 V power supply
  • -40 to 125 °C temperature range
  • 0.27 μA Standby mode (2 wakeup pins)
  • 0.4 μA Stop mode (16 wakeup lines)
  • 0.8 μA Stop mode + RTC + 8 KB RAM retention
  • 88 μA/MHz in Run mode
  • 3.5 μs wakeup time (from RAM)
  • 5 μs wakeup time (from Flash memory)
  • Core: Arm 32-bit Cortex-M0+ with MPU
    • From 32 kHz up to 32 MHz max.
    • 0.95 DMIPS/MHz
  • Reset and supply management
    • Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
    • Ultra-low-power POR/PDR
    • Programmable voltage detector (PVD)
  • Clock sources
    • 1 to 25 MHz crystal oscillator
    • 32 kHz oscillator for RTC with calibration
    • High speed internal 16 MHz factory-trimmed RC (+/- 1%)
    • Internal low-power 37 kHz RC
    • Internal multispeed low-power 65 kHz to 4.2 MHz RC
    • Internal self calibration of 48 MHz RC for USB
    • PLL for CPU clock
  • Pre-programmed bootloader
    • USART, SPI supported
  • Development support
    • Serial wire debug supported
  • Up to 51 fast I/Os (45 I/Os 5V tolerant)
  • Memories
    • Up to 64 KB Flash memory with ECC
    • 8KB RAM
    • 2 KB of data EEPROM with ECC
    • 20-byte backup register
    • Sector protection against R/W operation

    • Applications

    STM32L0

    Specifications

    • Core Processor ARM Cortex M0+

    • Speed 32MHz

    • Operating Temperature -40℃ ~ 85℃ (TA)

    • Program Memory Type FLASH

    • RAM Size 8K x 8

    • Number of I/O 27

    • Peripherals Brown-out Detect/Reset, DMA, POR, PWM, WDT

    • Mounting Type Surface Mount

    • Oscillator Type Internal

    • Supplier Device Package 32-UFQFPN (5x5)

    • EEPROM Size 2K x 8

    • Package / Case 32-UFQFN Exposed Pad

    • Core Size 32-Bit

    • Connectivity I2C, IrDA, SPI, UART/USART, USB

    • Program Memory Size 64KB (64K x 8)

    • Data Converters A/D 10x12b; D/A 1x12b

    • Voltage - Supply (Vcc/Vdd) 1.65V ~ 3.6V

    Circuit Diagram

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