Overview
The Nucleo L452RE(-P) boards feature an ARM Cortex-M4 based STM32L452RE MCU with a wide range of connectivity support and configurations.
Here some highlights of these boards:
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STM32 microcontroller in LQFP64 package
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Arduino Uno V3 connectivity
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On-board ST-LINK/V2-1 debugger/programmer with SWD connector
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Flexible board power supply:
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USB VBUS or external source(3.3V, 5V, 7 - 12V)
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Power management access point
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Three LEDs: USB communication (LD1), user LED (LD2), power LED (LD3)
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One push-button: RESET
Hardware
The STM32L452RE SoC provides the following hardware IPs:
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Ultra-low-power with FlexPowerControl (down to 28 nA Standby mode and 84 µA/MHz run mode)
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Core: ARM® 32-bit Cortex® -M4 CPU with FPU, frequency up to 80 MHz, 100DMIPS/1.25DMIPS/MHz (Dhrystone 2.1)
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Clock Sources:
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4 to 48 MHz crystal oscillator
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32 kHz crystal oscillator for RTC (LSE)
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Internal 16 MHz factory-trimmed RC ( ±1%)
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Internal low-power 32 kHz RC ( ±5%)
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Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy)
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2 PLLs for system clock, USB, audio, ADC
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RTC with HW calendar, alarms and calibration
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Up to 3 capacitive sensing channels: support touchkey, linear and rotary touch sensors
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12x timers:
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1x 16-bit advanced motor-control
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1x 32-bit and 3x 16-bit general purpose
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2x 16-bit basic
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2x low-power 16-bit timers (available in Stop mode)
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2x watchdogs
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SysTick timer
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Up to 26 fast I/Os, most 5 V-tolerant
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Memories
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Up to 512 KB single bank Flash, proprietary code readout protection
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160 KB of SRAM including 32 KB with hardware parity check
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Quad SPI memory interface
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Rich analog peripherals (independent supply)
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1x 12-bit ADC 5 MSPS, up to 16-bit with hardware oversampling, 200 µA/MSPS
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2x 12-bit DAC, low-power sample and hold
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1x operational amplifiers with built-in PGA
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2x ultra-low-power comparators
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17x communication interfaces - USB 2.0 full-speed crystal less solution with LPM and BCD - 1x SAI (serial audio interface) - 4x I2C FM+(1 Mbit/s), SMBus/PMBus - 3x USARTs (ISO 7816, LIN, IrDA, modem) - 1x UART (LIN, IrDA, modem) - 1x LPUART (Stop 2 wake-up) - 3x SPIs (and 1x Quad SPI) - CAN (2.0B Active) and SDMMC interface - IRTIM (Infrared interface)
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14-channel DMA controller
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True random number generator
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CRC calculation unit, 96-bit unique ID
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Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell*
More information about STM32L452RE can be found here:
