Overview
The STM32G431RBT3 is a high-performance microcontroller from STMicroelectronics, part of the STM32G431x6/x8/xB family. It is based on the Arm® 32-bit Cortex®-M4 CPU, which includes a single-precision floating-point unit (FPU) and supports DSP instructions. This microcontroller operates at a frequency of up to 170 MHz and achieves 213 DMIPS. It is designed to enhance application security with a memory protection unit (MPU) and various protection mechanisms for embedded Flash memory and SRAM.
The device features extensive high-speed memories, including up to 128 Kbytes of Flash memory and 32 Kbytes of SRAM, along with a routine booster of 10 Kbytes of SRAM. It also includes a wide range of peripherals and communication interfaces, making it versatile for various applications.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) |
| Frequency | Up to 170 MHz, 213 DMIPS |
| Memories | 128 Kbytes of Flash memory, 32 Kbytes of SRAM, 10 Kbytes of CCM SRAM |
| Operating Voltage | 1.71 V to 3.6 V |
| Operating Temperature | -40 to +85 °C (+105 °C junction), -40 to +125 °C (+130 °C junction) |
| ADCs | Two fast 12-bit ADCs (4 Msps), up to 23 channels |
| DACs | Four 12-bit DAC channels (2 external, 2 internal) |
| Timers | One 32-bit timer, ten 16-bit timers, two watchdog timers |
| Communication Interfaces | Three I2Cs, three SPIs, three USARTs, one UART, one low-power UART, one FDCAN, one SAI, USB 2.0 full-speed interface |
| Package | LQFP 64 10x10x1.4 mm, UFBGA 64 5x5x0.6 P 0.5 mm |
Key Features
- Mathematical Hardware Accelerators: CORDIC for trigonometric functions and FMAC for filter functions.
- Low-Power Modes: Sleep, stop, standby, and shutdown modes for low-power applications.
- Analog Peripherals: Two fast 12-bit ADCs, four 12-bit DAC channels, four ultra-fast rail-to-rail analog comparators, and three operational amplifiers.
- Communication Interfaces: Multiple I2Cs, SPIs, USARTs, UARTs, FDCAN, SAI, and a USB 2.0 full-speed interface.
- Timers and Counters: One 32-bit timer, ten 16-bit timers, and two watchdog timers.
- Security Features: Memory protection unit (MPU), readout protection, write protection, securable memory area, and proprietary code readout protection.
- Development Support: Serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
Applications
- Industrial Automation: Suitable for industrial control systems, including PLC solutions targeting SIL3 applications.
- Consumer Electronics: Ideal for battery-operated devices such as brushless power tools and other portable electronics.
- Automotive Systems: Can be used in various automotive applications due to its robust communication interfaces and low-power modes.
- Medical Devices: Applicable in medical devices requiring precise analog and digital signal processing.
- IoT Devices: Suitable for Internet of Things (IoT) devices that require high performance and low power consumption.
Q & A
- What is the core architecture of the STM32G431RBT3?
The STM32G431RBT3 is based on the Arm® 32-bit Cortex®-M4 CPU with a single-precision floating-point unit (FPU) and DSP instructions.
- What is the maximum operating frequency of the STM32G431RBT3?
The maximum operating frequency is up to 170 MHz, achieving 213 DMIPS.
- What types of memories are available on the STM32G431RBT3?
The device features up to 128 Kbytes of Flash memory, 32 Kbytes of SRAM, and 10 Kbytes of CCM SRAM.
- What are the operating voltage and temperature ranges of the STM32G431RBT3?
The operating voltage range is 1.71 V to 3.6 V, and the operating temperature range is -40 to +85 °C (+105 °C junction) and -40 to +125 °C (+130 °C junction).
- What analog peripherals are available on the STM32G431RBT3?
The device includes two fast 12-bit ADCs, four 12-bit DAC channels, four ultra-fast rail-to-rail analog comparators, and three operational amplifiers.
- What communication interfaces does the STM32G431RBT3 support?
The device supports multiple I2Cs, SPIs, USARTs, UARTs, FDCAN, SAI, and a USB 2.0 full-speed interface.
- What are the low-power modes available on the STM32G431RBT3?
The device supports sleep, stop, standby, and shutdown modes for low-power applications.
- What security features are included in the STM32G431RBT3?
The device includes a memory protection unit (MPU), readout protection, write protection, securable memory area, and proprietary code readout protection.
- What development tools are supported by the STM32G431RBT3?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
- What are the typical applications of the STM32G431RBT3?
The device is suitable for industrial automation, consumer electronics, automotive systems, medical devices, and IoT devices.
- What packages are available for the STM32G431RBT3?
The device is available in LQFP 64 10x10x1.4 mm and UFBGA 64 5x5x0.6 P 0.5 mm packages.
