Overview
The STM32WB15CCU6E is a multiprotocol wireless and ultra-low-power microcontroller unit (MCU) developed by STMicroelectronics. This device is designed to be highly efficient and integrates a powerful radio compliant with the Bluetooth® Low Energy SIG specification v5.4. It features a dual-core architecture, with a high-performance Arm® Cortex®-M4 32-bit RISC core operating at up to 64 MHz and a dedicated Arm® Cortex®-M0+ for real-time low-layer operations. The device is optimized for low-power applications and includes various peripherals and security features, making it suitable for a wide range of wireless and IoT applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 with FPU, up to 64 MHz |
| Secondary Core | Arm® 32-bit Cortex®-M0+ for real-time radio layer |
| Memory | 320 KB Flash, 48 KB SRAM |
| Radio | 2.4 GHz RF transceiver, Bluetooth® 5.4, RX sensitivity: -95.5 dBm |
| Power Supply | 1.71 to 3.6 V |
| Temperature Range | -40 to +85 °C (+105 °C junction), -40 to +105 °C (+125 °C junction) |
| ADC | 12-bit, 2.5 Msps, 190 µA/Msps |
| Timers | 1x 32-bit, 3x 16-bit, 2x 16-bit low-power timers |
| Communication Interfaces | USART, LPUART, I2C, SPI up to 32 MHz |
| Power Modes | Shutdown: 12 nA, Standby + RTC + 48 KB RAM: 610 nA, Active-mode MCU: 33 µA/MHz |
| Package | UFQFPN 48 7x7x0.55 mm |
Key Features
- Ultra-low-power platform with various power-saving modes
- High-efficiency SMPS step-down converter with automatic bypass mode
- Support for Bluetooth® Low Energy v5.4 with GATT caching and EATT
- Accurate RSSI for power control and compliance with radio frequency regulations
- Rich analog peripherals including a 12-bit ADC and an ultra-low-power comparator
- Advanced security features: AES encryption, PKA, RNG, and sector protection
- Up to eight capacitive sensing channels and touch sensing controller
- Multiple communication interfaces: USART, LPUART, I2C, SPI
- Development support with Serial Wire Debug (SWD) and JTAG
Applications
- Wireless IoT devices
- Smart home and building automation
- Industrial automation and control systems
- Health and fitness trackers
- Smart wearables and mobile devices
- Low-power sensor networks
Q & A
- What is the core architecture of the STM32WB15CCU6E?
The device features a dual-core architecture with an Arm® Cortex®-M4 32-bit RISC core and a dedicated Arm® Cortex®-M0+ for real-time low-layer operations.
- What Bluetooth® specification does the STM32WB15CCU6E support?
The device supports Bluetooth® Low Energy v5.4.
- What is the operating temperature range of the STM32WB15CCU6E?
The device operates in the -40 to +85 °C (+105 °C junction) and -40 to +105 °C (+125 °C junction) temperature ranges.
- What are the power supply requirements for the STM32WB15CCU6E?
The device operates from a 1.71 to 3.6 V power supply.
- What are the key security features of the STM32WB15CCU6E?
The device includes AES encryption, PKA, RNG, sector protection, and secure firmware installation for Bluetooth® Low Energy.
- What communication interfaces are available on the STM32WB15CCU6E?
The device features USART, LPUART, I2C, and SPI up to 32 MHz.
- How does the STM32WB15CCU6E manage power consumption?
The device includes various power-saving modes such as shutdown, standby, and low-power timers, along with a high-efficiency SMPS step-down converter.
- What is the role of the IPCC and HSEM in the STM32WB15CCU6E?
The IPCC (Inter-Processor Communication Controller) and HSEM (Hardware Semaphores) facilitate communication and resource sharing between the two processors.
- What are the key analog peripherals of the STM32WB15CCU6E?
The device includes a 12-bit ADC and an ultra-low-power comparator, along with up to eight capacitive sensing channels.
- What development tools are supported by the STM32WB15CCU6E?
The device supports Serial Wire Debug (SWD) and JTAG for development and debugging.
