The STM32WLE5/E4xx long-range wireless and ultra-low-power devices embed a powerful and ultra-low-power LPWAN-compliant radio solution, enabling the following modulations: LoRa^®, (G)FSK, (G)MSK, and BPSK.

Specifications :

Features :

• Radio
  • Frequency range: 150 MHz to 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 such as 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 V to 3.6 V power supply
  • –40 °C to +105 °C temperature range
  • Shutdown mode: 31 nA (V_DD = 3 V)
  • Standby (+ RTC) mode:360 nA (V_DD = 3 V)
  • Stop2 (+ RTC) mode: 1.07 µA (V_DD = 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)
• Security and identification
  • Hardware encryption AES 256-bit
  • True random number generator (RNG)
  • Sector protection against read/write operations (PCROP, RDP, WRP)
  • CRC calculation unit
  • Unique device identifier (64-bit UID compliant)

Integrated Development Environment :

STM32 Cube IDE