Overview
The STM32WLE5C8U6 is a multiprotocol, long-range wireless and ultra-low-power microcontroller from STMicroelectronics. It is based on the high-performance Arm® Cortex®-M4 32-bit RISC core, operating at a frequency of up to 48 MHz. This device is designed for low-power applications and features a comprehensive set of peripherals and communication interfaces, making it suitable for various IoT and industrial applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | 32-bit Arm® Cortex®-M4 CPU, up to 48 MHz |
| Memory | Up to 256 Kbytes of Flash memory, up to 64 Kbytes of SRAM |
| Modulation | LoRa®, (G)FSK, (G)MSK, BPSK |
| Frequency Range | 150 MHz to 960 MHz |
| Transmitter Output Power | Programmable up to +22 dBm (high), up to +15 dBm (low) |
| Power Supply | 1.8 V to 3.6 V |
| Temperature Range | –40 °C to +105 °C |
| Low-Power Modes | Shutdown: 31 nA, Standby (+ RTC): 360 nA, Stop2 (+ RTC): 1.07 µA |
| Active-Mode Power Consumption | < 72 µA/MHz (MCU), 4.82 mA (RX), 15 mA at 10 dBm and 87 mA at 20 dBm (TX LoRa® 125 kHz) |
| Analog Peripherals | 12-bit ADC, 12-bit DAC, 2x ultra-low-power comparators |
| Communication Interfaces | 2x USART, 1x LPUART, 2x SPI, 3x I2C, 2x 16-bit timers, 1x 16-bit 4-channel timer, 1x 32-bit 4-channel timer |
| Security Features | AES 256-bit, True random number generator (RNG), Sector protection, CRC calculation unit, Unique device identifier (64-bit UID) |
Key Features
- Ultra-Low-Power Platform: Optimized for low-power consumption with various power-saving modes.
- Multiprotocol Radio: Supports LoRa®, (G)FSK, (G)MSK, and BPSK modulations.
- Advanced Security: Includes AES 256-bit encryption, true random number generator, and sector protection.
- Rich Analog Peripherals: Features a 12-bit ADC, 12-bit DAC, and ultra-low-power comparators.
- Comprehensive Communication Interfaces: Includes USART, LPUART, SPI, I2C, and timers.
- High-Efficiency SMPS: Embedded step-down converter and smart switch between SMPS and LDO.
- Development Support: Serial-wire debug (SWD), JTAG, and OTA firmware update capability.
Applications
- IoT Devices: Suitable for various IoT applications requiring low power and long-range wireless communication.
- Industrial Automation: Used in industrial automation for remote monitoring and control.
- Smart Metering: Ideal for smart metering applications due to its low power consumption and wireless capabilities.
- Asset Tracking: Can be used in asset tracking systems that require long-range communication and low power consumption.
- Smart Cities: Applicable in smart city infrastructure for various sensing and monitoring applications.
Q & A
- What is the core architecture of the STM32WLE5C8U6?
The STM32WLE5C8U6 is based on the 32-bit Arm® Cortex®-M4 CPU.
- What are the supported modulations for this device?
The device supports LoRa®, (G)FSK, (G)MSK, and BPSK modulations.
- What is the frequency range of the radio?
The frequency range is from 150 MHz to 960 MHz.
- What are the power consumption modes of the device?
The device has shutdown, standby (+ RTC), and stop2 (+ RTC) modes with respective power consumptions.
- Does the device support over-the-air firmware updates?
Yes, the device supports OTA firmware updates.
- What are the key security features of the STM32WLE5C8U6?
The device includes AES 256-bit encryption, true random number generator, sector protection, and a unique device identifier.
- What are the available communication interfaces?
The device features USART, LPUART, SPI, I2C, and various timers.
- Is the device RoHS compliant?
Yes, the device is RoHS compliant.
- What is the operating temperature range of the device?
The operating temperature range is from –40 °C to +105 °C.
- Does the device support motor control?
Yes, the device includes a 16-bit 4-channel timer supporting motor control.
