STM32WLEx 32-Bit Wireless Long-Range MCUs

STMicroelectronics’ long-range wireless and ultra-low-power devices embed a powerful ultra-low-power LPWAN-compliant radio solution

STMicroelectronics’ STM32WLE5/E4xx long-range wireless and ultra-low-power devices embed a powerful ultra-low-power LPWAN-compliant radio solution, enabling the LoRa® (available in STM32WLx5xx only), (G)FSK, (G)MSK, and BPSK modulations. These MCUs are compatible with standardized or proprietary protocols such as LoRaWAN®, Sigfox, W-MBUS, and more (fully open wireless system on chip).

Features

Key features

• Arm® Cortex®-M4 CPU up to 48 MHz
• Up to 256 KB Flash and 64 KB SRAM
• Sub-GHz radio – multi-modulations: LoRa, (G)FSK, (G)MSK, BPSK
• Peripherals: 3 x I²C, 2 x USART, 1 x LP-UART, 2 x SP

Additional features

Radio

• Frequency range: 150…960 MHz
• Modulation: LoRa^®, (G)FSK, (G)MSK, and BPSK
• RX sensitivity:
  • -123 dBm for 2-FSK (at 1.2 Kbit/s)
  • -148 dBm for LoRa^® (at 10.4 kHz, spreading factor 12)
• Transmitter high output power, programmable up to +22 dBm
• Transmitter low output power, programmable up to +15 dBm
• Compliant with the following radio frequency regulations:
• ETSI EN 300 220, EN 300 113, EN 301 166, FCC CFR 47 Part 15, 24, 90, 101, and the Japanese ARIB STD-T30, T-67, T-108
• Compatible with standardized or proprietary protocols such as LoRaWAN^®, Sigfox™, W-MBus, and more (fully open wireless system-on-chip)

Ultra-low-power platform

• 1.8…3.6 V power supply
• -40…+105 °C temperature range
• Shutdown mode: 31 nA (VDD = 3 V)
• Standby (+ RTC) mode: 360 nA (VDD = 3 V)
• Stop2 (+ RTC) mode: 1.07 µA (VDD = 3 V)
• Active-mode MCU: < 72 µA/MHz (CoreMark^®)
• Active-mode RX: 4.82 mA
• Active-mode TX: 15 mA at 10 dBm and 87 mA at 20 dBm (LoRa^® 125 kHz) Core
• 32-bit Arm^® Cortex^®-M4 CPU:
  • Adaptive real-time accelerator (ART Accelerator) allowing 0-wait-state execution from Flash memory
  • Frequency up to 48 MHz
  • MPU and DSP instructions
  • 1.25 DMIPS/MHz (Dhrystone 2.1)
• 32-bit Arm^® Cortex^®-M0+ CPU (for STM32WLEx series only)
  • Frequency up to 48 MHz
  • MPU instructions
  • 0.95 DMIPS/MHz (Dhrystone 2.1)

more information: https://www.st.com/en/microcontrollers-microprocessors/stm32wlex.html

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