Overview
The STM32L431CCU6 is an ultra-low-power microcontroller from STMicroelectronics, based on the high-performance Arm Cortex-M4 32-bit RISC core. This microcontroller is designed for applications requiring low power consumption and high performance. It features a Floating Point Unit (FPU) and supports all Arm single-precision data-processing instructions, along with a full set of DSP instructions and a memory protection unit (MPU) for enhanced application security.
Key Specifications
| Parameter | Value |
|---|---|
| Core | Arm Cortex-M4 32-bit RISC |
| Flash Memory | Up to 256 Kbyte |
| SRAM | 64 Kbyte (48 Kbyte + 16 Kbyte) |
| ADC | 12-bit, 5 Msps |
| DAC Channels | 2 |
| Timers | 1 x 32-bit, 5 x 16-bit, 2 x 16-bit low-power |
| Operational Amplifier | 1 |
| Comparators | 2 |
| Capacitive Sensing Channels | Up to 21 |
| Communication Interfaces | 3 x I2C, 3 x SPI, 3 x USART, 1 x Low-Power UART, 1 x SAI |
| Operating Temperature | -40 to +85 °C (+105 °C junction) |
| Power Supply | 1.71 to 3.6 V |
| I/Os (High Current) | 38 |
Key Features
- Ultra-low-power consumption with dynamic voltage scaling and multiple power-saving modes.
- High-speed memories including Flash and SRAM with various protection mechanisms.
- Advanced communication interfaces such as I2C, SPI, USART, and SAI.
- Integrated peripherals including ADC, DAC, operational amplifier, and comparators.
- Support for capacitive sensing and motor control timers.
- Memory protection unit (MPU) for enhanced security.
- Low-power RTC and backup registers.
Applications
- IoT devices requiring low power consumption.
- Industrial automation and control systems.
- Medical devices and healthcare applications.
- Automotive systems, especially those requiring low power and high reliability.
- Consumer electronics such as smart home devices and wearables.
Q & A
- What is the core architecture of the STM32L431CCU6? The STM32L431CCU6 is based on the Arm Cortex-M4 32-bit RISC core.
- How much Flash and SRAM does the STM32L431CCU6 have? It has up to 256 Kbyte of Flash memory and 64 Kbyte of SRAM.
- What is the operating temperature range of the STM32L431CCU6? The operating temperature range is -40 to +85 °C (+105 °C junction).
- What communication interfaces are available on the STM32L431CCU6? It features 3 x I2C, 3 x SPI, 3 x USART, 1 x Low-Power UART, and 1 x SAI.
- Does the STM32L431CCU6 support capacitive sensing? Yes, it supports up to 21 capacitive sensing channels.
- What power-saving features does the STM32L431CCU6 have? It includes dynamic voltage scaling, low-power run mode, and various power-saving modes.
- Is the STM32L431CCU6 suitable for industrial applications? Yes, it is suitable for industrial automation and control systems due to its reliability and low power consumption.
- Does the STM32L431CCU6 have any security features? Yes, it includes a memory protection unit (MPU) for enhanced application security.
- Can the STM32L431CCU6 be used in automotive applications? Yes, it is suitable for automotive systems requiring low power and high reliability.
- What is the typical power supply range for the STM32L431CCU6? The power supply range is 1.71 to 3.6 V.
