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ST STM32L452REY6TR

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STM32L452REY6TR Overview

The STM32L452xx devices are the ultra-low-power microcontrollers based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all Arm® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.

The STM32L452xx devices embed high-speed memories (Flash memory up to 512 Kbyte, 160 Kbyte of SRAM), a Quad SPI flash memories interface (available on all packages) and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.
The STM32L452xx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall.
The devices offer a fast 12-bit ADC (5 Msps), two comparators, one operational amplifier, one DAC channel, an internal voltage reference buffer, a low-power RTC, one general-purpose 32-bit timer, one 16-bit PWM timer dedicated to motor control, four general-purpose 16-bit timers, and two 16-bit low-power timers.
In addition, up to 21 capacitive sensing channels are available.
They also feature standard and advanced communication interfaces.
The STM32L452xx operates in the -40 to +85 °C (+105 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V VDD power supply when using internal LDO regulator and a 1.05 to 1.32V VDD12 power supply when using external SMPS supply. A comprehensive set of power-saving modes allows the design of low-power applications.
Some independent power supplies are supported: analog independent supply input for ADC, DAC, OPAMP and comparators. A VBAT input allows to backup the RTC and backup registers. Dedicated VDD12 power supplies can be used to bypass the internal LDO regulator when connected to an external SMPS.
The STM32L452xx family offers six packages from 48 to 100-pin packages.

ECAD Model

Symbol

STM32L452REY6TR

Footprint

STM32L452REY6TR

Features

  • 1.71 V to 3.6 V power supply
  • -40 °C to 85/125 °C temperature range
  • 145 nA in VBAT mode: supply for RTC and 32x32-bit backup registers
  • 22 nA Shutdown mode (5 wakeup pins)
  • 106 nA Standby mode (5 wakeup pins)
  • 375 nA Standby mode with RTC
  • 2.05 μA Stop 2 mode, 2.40 μA with RTC
  • 84 μA/MHz run mode (LDO Mode)
  • 36 μA/MHz run mode (@3.3 V SMPS Mode)
  • Batch acquisition mode (BAM)
  • 4 μs wakeup from Stop mode
  • Brown out reset (BOR)
  • Interconnect matrix
  • Core: Arm 32-bit Cortex-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) allowing 0-wait-state execution from Flash memory, frequency up to 80 MHz, MPU, 100DMIPS and DSP instructions
  • Performance benchmark
    • 1.25 DMIPS/MHz (Drystone 2.1)
    • 273.55 CoreMark (3.42 CoreMark/MHz @ 80 MHz)
  • Energy benchmark
    • 335 ULPMark CP score
    • 104 ULPMark PP score
  • Clock Sources
    • 4 to 48 MHz crystal oscillator
    • 32 kHz crystal oscillator for RTC (LSE)
    • Internal 16 MHz factory-trimmed RC (±1%)
    • Internal low-power 32 kHz RC (±5%)
    • Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy)
    • Internal 48 MHz with clock recovery
    • 2 PLLs for system clock, audio, ADC
  • Up to 83 fast I/Os, most 5 V-tolerant
  • RTC with HW calendar, alarms and calibration
  • Up to 21 capacitive sensing channels: support touchkey, linear and rotary touch sensors
  • 12x timers: 1x 16-bit advanced motor-control, 1x 32-bit and 3x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer
  • Applications

    STM32L4

    Product Parameter

    • Core Processor ARM Cortex M4

    • Speed 80MHz

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

    • Program Memory Type FLASH

    • RAM Size 160K x 8

    • Number of I/O 52

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

    • Mounting Type Surface Mount

    • Oscillator Type Internal

    • Supplier Device Package 64-WLCSP (3.36x3.66)

    • Package / Case 64-UFBGA, WLCSP

    • Core Size 32-Bit

    • Connectivity CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART, USB

    • Program Memory Size 512KB (512K x 8)

    • Data Converters A/D 16x12b; D/A 1x12b

    • Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.6V

    Circuit Diagram

    STM32L452REY6TR Related Keywords

    • STM32L452REY6TR Price
    • STM32L452REY6TR Datasheet
    • STM32L452REY6TR Picture
    • STM32L452REY6TR MCU
    • STM32L452REY6TR Circuit diagram
    • STM32L452REY6TR PDF
    • STM32L452REY6TR Specifications
    • STM32L452REY6TR Pin voltage

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