Overview
The STM32WL55CCU6 is a cutting-edge wireless microcontroller from STMicroelectronics, designed to provide robust wireless connectivity and ultra-low-power performance. This device integrates a dual-core architecture with an Arm Cortex-M4 and an Arm Cortex-M0+ core, operating at up to 48 MHz. It is particularly suited for IoT applications requiring long-range wireless communication and low power consumption.
The STM32WL55CCU6 features an embedded multi-modulation radio supporting LoRa®, (G)FSK, (G)MSK, and BPSK modulations, making it compliant with various LPWAN protocols such as LoRaWAN®, Sigfox™, and W-MBus. The device also supports Bluetooth Low Energy (BLE) 5.2 for additional wireless connectivity options.
Key Specifications
| Parameter | Specification |
|---|---|
| Cores | Dual-core Arm Cortex-M4/M0+ @48 MHz |
| Memory | 256 Kbytes of Flash memory, 64 Kbytes of SRAM |
| Wireless Modulations | LoRa®, (G)FSK, (G)MSK, BPSK |
| Frequency Range | 150 MHz to 960 MHz |
| Power Supply | 1.8 V to 3.6 V |
| Operating Temperature | –40 °C to +105 °C (+85 °C with radio) |
| ADC/DAC | 12-bit ADC, 12-bit DAC |
| Timers | 1x 16-bit single-channel timer, 2x 16-bit four-channel timers, 1x 32-bit four-channel timer, 3x 16-bit ultra-low-power timers |
| Communication Interfaces | 2x USARTs, 1x LPUART, 3x I2Cs, 2x SPIs, 1x I2S |
| Power Modes | Shutdown mode: 31 nA, Standby (+ RTC) mode: 360 nA |
Key Features
- Dual-Core Architecture: Arm Cortex-M4 and Arm Cortex-M0+ cores for enhanced processing and security.
- Wireless Connectivity: Embedded multi-modulation radio supporting LoRa®, (G)FSK, (G)MSK, BPSK, and BLE 5.2.
- Low Power Consumption: Ultra-low-power design with various power-saving modes.
- Security Features: Secure sub-GHz MAC layer, secure firmware update, secure firmware install, and management of secure keys.
- Analog Peripherals: 12-bit ADC, 12-bit DAC, two ultra-low-power comparators, and a high-accuracy reference voltage generator.
- Timers and Clocks: Multiple timers including 16-bit and 32-bit timers, and various clock sources such as 32 MHz crystal oscillator and internal RC oscillators.
- Communication Interfaces: USARTs, LPUART, I2Cs, SPIs, and I2S for versatile communication options.
- Power Management: High-efficiency SMPS step-down converter and independent power supplies for analog inputs.
Applications
- IoT Devices: Ideal for various IoT applications requiring wireless connectivity and low power consumption.
- Smart Home Devices: Used in smart home devices for wireless control and automation.
- Wearables: Suitable for wearable devices requiring wireless communication.
- Industrial Sensors: Used in industrial sensors for remote monitoring and data transmission.
- Smart Lighting Systems: Used in smart lighting systems for wireless control and automation.
- Health Monitoring Devices: Finds applications in health monitoring devices for data transmission.
Q & A
- What are the core specifications of the STM32WL55CCU6?
The STM32WL55CCU6 features a dual-core architecture with an Arm Cortex-M4 and an Arm Cortex-M0+ core, operating at up to 48 MHz.
- What wireless modulations does the STM32WL55CCU6 support?
The device supports LoRa®, (G)FSK, (G)MSK, BPSK, and BLE 5.2.
- What is the frequency range of the STM32WL55CCU6?
The frequency range is from 150 MHz to 960 MHz.
- What are the power supply and operating temperature ranges of the STM32WL55CCU6?
The power supply range is 1.8 V to 3.6 V, and the operating temperature range is –40 °C to +105 °C (+85 °C with radio).
- What are the key analog peripherals of the STM32WL55CCU6?
The device includes a 12-bit ADC, a 12-bit DAC, two ultra-low-power comparators, and a high-accuracy reference voltage generator.
- What communication interfaces are available on the STM32WL55CCU6?
The device features USARTs, LPUART, I2Cs, SPIs, and I2S.
- What are the power-saving modes of the STM32WL55CCU6?
The device has shutdown mode (31 nA) and standby (+ RTC) mode (360 nA).
- Is the STM32WL55CCU6 secure?
Yes, it includes security features such as a secure sub-GHz MAC layer, secure firmware update, and management of secure keys.
- What are some common applications of the STM32WL55CCU6?
Common applications include IoT devices, smart home devices, wearables, industrial sensors, smart lighting systems, and health monitoring devices.
- How does the STM32WL55CCU6 support wireless connectivity?
The device supports wireless connectivity through its embedded multi-modulation radio and BLE 5.2.
- What is the package type of the STM32WL55CCU6?
The device is available in a compact UFQFPN-48 package.
