Overview
The STM32L431RCT6 is an ultra-low-power microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M4 32-bit RISC core. This core operates at a frequency of up to 80 MHz and features a Floating point unit (FPU) single precision, supporting all Arm® single-precision data-processing instructions and data types. The device is designed for low-power applications, making it suitable for a wide range of industries including industrial control, medical devices, consumer electronics, and automotive systems.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® Cortex®-M4 32-bit RISC core, up to 80 MHz |
| Memory | Up to 256 Kbyte Flash, 64 Kbyte SRAM, Quad SPI flash memories interface |
| Peripherals | Extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix |
| Analog Features | Fast 12-bit ADC (5 Msps), two comparators, one operational amplifier, two DAC channels, internal voltage reference buffer |
| Timers | Low-power RTC, one general-purpose 32-bit timer, one 16-bit PWM timer dedicated to motor control, four general-purpose 16-bit timers, two 16-bit low-power timers |
| Communication Interfaces | Three I2Cs, three SPIs, three USARTs, one Low-Power UART, one SAI (Serial Audio Interface) |
| Operating Temperature | -40 to +85 °C (+105 °C junction), -40 to +105 °C (+125 °C junction), -40 to +125 °C (+130 °C junction) |
| Power Supply | 1.71 to 3.6 V |
| Package | 64-pin LQFP |
Key Features
- Core and Performance: Arm® Cortex®-M4 32-bit RISC core with a Floating point unit (FPU) single precision, operating at up to 80 MHz.
- Memory and Storage: High-speed memories including up to 256 Kbyte of Flash memory and 64 Kbyte of SRAM, along with a Quad SPI flash memories interface.
- Analog Peripherals: Fast 12-bit ADC (5 Msps), two comparators, one operational amplifier, two DAC channels, and an internal voltage reference buffer.
- Timers and Clocks: Low-power RTC, one general-purpose 32-bit timer, one 16-bit PWM timer dedicated to motor control, four general-purpose 16-bit timers, and two 16-bit low-power timers.
- Communication Interfaces: Three I2Cs, three SPIs, three USARTs, one Low-Power UART, and one SAI (Serial Audio Interface).
- Power Management: Comprehensive set of power-saving modes, operating from a 1.71 to 3.6 V power supply.
- Security: Full set of DSP instructions and a memory protection unit (MPU) which enhances application security.
Applications
- Industrial Control Systems: Ideal for controlling complex industrial processes due to its high processing power and extensive I/O capabilities.
- Medical Devices: Suitable for battery-powered medical devices due to its low power consumption and high processing power.
- Consumer Electronics: Used in home automation systems, wearable devices, and gaming consoles.
- Automotive Applications: Robust and reliable, making it suitable for engine control units and infotainment systems.
- Communication Systems: Ideal for use in wireless routers and modems due to its advanced communication interfaces.
Q & A
- What is the core architecture of the STM32L431RCT6?
The STM32L431RCT6 is based on the Arm® Cortex®-M4 32-bit RISC core.
- What is the maximum operating frequency of the STM32L431RCT6?
The maximum operating frequency is up to 80 MHz.
- How much Flash and SRAM memory does the STM32L431RCT6 have?
The device has up to 256 Kbyte of Flash memory and 64 Kbyte of SRAM.
- What are the key analog peripherals of the STM32L431RCT6?
The device features a fast 12-bit ADC (5 Msps), two comparators, one operational amplifier, and two DAC channels.
- What are the communication interfaces available on the STM32L431RCT6?
The device includes three I2Cs, three SPIs, three USARTs, one Low-Power UART, and one SAI (Serial Audio Interface).
- What is the operating temperature range of the STM32L431RCT6?
The operating temperature range is -40 to +85 °C (+105 °C junction), -40 to +105 °C (+125 °C junction), and -40 to +125 °C (+130 °C junction).
- What is the power supply range for the STM32L431RCT6?
The power supply range is from 1.71 to 3.6 V.
- What are some of the key applications of the STM32L431RCT6?
The device is used in industrial control systems, medical devices, consumer electronics, automotive applications, and communication systems.
- Does the STM32L431RCT6 have any security features?
Yes, it features a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.
- What is the package type of the STM32L431RCT6?
The device is available in a 64-pin LQFP package.
