Overview
The STM32G431KBU6 is a microcontroller from STMicroelectronics, part of the STM32G4 series. It is based on the high-performance Arm® Cortex®-M4 32-bit RISC core, operating at a frequency of up to 170 MHz and delivering 213 DMIPS. This device features a single-precision floating-point unit (FPU), digital signal processing (DSP) instructions, and a memory protection unit (MPU) for enhanced security. The STM32G431KBU6 operates within a temperature range of -40 to +85 °C (or +105 °C junction temperature) and is powered by a voltage supply of 1.71 to 3.6 V.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU |
| Frequency | Up to 170 MHz |
| Flash Memory | 128 Kbytes with ECC support and PCROP |
| SRAM | 22 Kbytes with hardware parity check |
| Operating Temperature | -40 to +85 °C (junction temperature up to +105 °C) |
| Power Supply | 1.71 to 3.6 V |
| D/A Converters | 4 x 12-bit DAC channels |
| Timers | 10 x 16-bit timers, 1 x 32-bit timer |
| UART/USART | 4 x USART/UARTs, 1 x LPUART |
| SPI | 3 x SPIs |
| I2C | 3 x I2C Fast mode plus (1 Mbit/s) |
| CAN | 1 x FDCAN controller supporting flexible data rate |
| I/Os | Up to 86 fast I/Os, 26 high current I/Os |
| Op-Amps | 3 x operational amplifiers |
| Comparators | 4 x ultra-fast rail-to-rail analog comparators |
Key Features
- Adaptive real-time accelerator (ART Accelerator) for 0-wait-state execution from Flash memory
- Mathematical hardware accelerators: CORDIC for trigonometric functions, FMAC for filter mathematical acceleration
- Comprehensive set of power-saving modes: sleep, stop, standby, and shutdown
- Independent power supplies for ADC, DAC, OPAMPs, and comparators; VBAT input for RTC and backup registers
- 12-channel DMA controller and interconnect matrix
- True random number generator (RNG) and CRC calculation unit
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
- Calendar RTC with alarm and periodic wakeup from stop/standby
- USB 2.0 full-speed interface with LPM and BCD support
Applications
- Industrial automation and control systems
- Medical devices requiring high precision and low power consumption
- Automotive systems, including motor control and sensor interfaces
- Consumer electronics, such as smart home devices and wearables
- IoT devices requiring advanced analog and digital capabilities
Q & A
- What is the core architecture of the STM32G431KBU6?
The STM32G431KBU6 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 STM32G431KBU6?
The maximum operating frequency is up to 170 MHz, delivering 213 DMIPS.
- What types of memory does the STM32G431KBU6 have?
The device features 128 Kbytes of Flash memory with ECC support, 22 Kbytes of SRAM, and additional CCM SRAM for routine boosting.
- What are the key power-saving features of the STM32G431KBU6?
The device includes comprehensive power-saving modes such as sleep, stop, standby, and shutdown, along with independent power supplies for various peripherals.
- What communication interfaces are available on the STM32G431KBU6?
The device includes 4 x USART/UARTs, 1 x LPUART, 3 x SPIs, 3 x I2C Fast mode plus, and 1 x FDCAN controller supporting flexible data rate.
- What analog features are integrated into the STM32G431KBU6?
The device features 2 x ADCs, 4 x 12-bit DAC channels, 3 x operational amplifiers, and 4 x ultra-fast rail-to-rail analog comparators.
- What is the temperature range for the STM32G431KBU6?
The operating temperature range is -40 to +85 °C (junction temperature up to +105 °C).
- What development tools and interfaces are supported by the STM32G431KBU6?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for development and debugging.
- What are some typical applications for the STM32G431KBU6?
Typical applications include industrial automation, medical devices, automotive systems, consumer electronics, and IoT devices.
- What is the purpose of the ART Accelerator in the STM32G431KBU6?
The ART Accelerator allows for 0-wait-state execution from Flash memory, enhancing performance.
- Does the STM32G431KBU6 support USB interfaces?
Yes, the device supports a USB 2.0 full-speed interface with LPM and BCD support.
