Overview
The STM32G431CBU3, produced by STMicroelectronics, is a mainstream Arm Cortex-M4 microcontroller (MCU) that offers high performance and advanced features. This MCU is part of the STM32G431x6/x8/xB family and is designed to operate at frequencies up to 170 MHz. It features an Arm 32-bit Cortex-M4 CPU with a single-precision floating-point unit (FPU), adaptive real-time accelerator (ART Accelerator), and DSP instructions, making it suitable for a wide range of applications requiring high computational power and efficiency.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm 32-bit Cortex-M4 CPU with FPU, ART Accelerator |
| Frequency | Up to 170 MHz |
| Flash Memory | 128 Kbytes with ECC support, PCROP, securable memory area, 1 Kbyte OTP |
| SRAM | 22 Kbytes with hardware parity check on the first 16 Kbytes, 10 Kbytes 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 | 2 x 12-bit ADCs, up to 23 channels, 0 to 3.6 V conversion range |
| DACs | 4 x 12-bit DAC channels (2 external, 2 internal) |
| Timers | 1 x 32-bit timer, 10 x 16-bit timers, 2 x watchdog timers |
| Communication Interfaces | 3 x I2C, 3 x SPI, 4 x USART/UART, 1 x FDCAN, 1 x SAI, USB 2.0 full-speed |
| Package | UFQFPN 48 7x7x0.55 mm |
Key Features
- Mathematical Hardware Accelerators: CORDIC for trigonometric functions and FMAC for filter functions.
- Analog Peripherals: Two fast 12-bit ADCs, four ultra-fast rail-to-rail analog comparators, three operational amplifiers, and four DAC channels.
- Communication Interfaces: Three I2Cs, three SPIs, four USART/UARTs, one FDCAN, one SAI, and a USB 2.0 full-speed interface.
- Timers and Counters: One 32-bit timer, ten 16-bit timers, and two watchdog timers.
- Low-Power Modes: Sleep, stop, standby, and shutdown modes for low-power applications.
- Security Features: Readout protection, write protection, securable memory area, and proprietary code readout protection.
- Development Support: Serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
Applications
The STM32G431CBU3 is versatile and can be used in various applications, including:
- Industrial Automation: Motor control, process control, and automation systems.
- Medical Devices: Medical diagnostic equipment and patient monitoring systems.
- Consumer Electronics: Smart home devices, audio equipment, and other consumer electronics requiring advanced analog and digital capabilities.
- Automotive Systems: Infotainment systems, driver assistance systems, and other automotive applications.
- IoT Devices: Internet of Things devices requiring low power consumption and high computational efficiency.
Q & A
- What is the maximum operating frequency of the STM32G431CBU3?
The maximum operating frequency is up to 170 MHz.
- How much Flash and SRAM memory does the STM32G431CBU3 have?
The device has 128 Kbytes of Flash memory and 22 Kbytes of SRAM.
- What are the key mathematical hardware accelerators in the STM32G431CBU3?
The device includes CORDIC for trigonometric functions and FMAC for filter functions.
- What types of communication interfaces are available on the STM32G431CBU3?
The device features three I2Cs, three SPIs, four USART/UARTs, one FDCAN, one SAI, and a USB 2.0 full-speed interface.
- Does the STM32G431CBU3 support low-power modes?
Yes, it supports sleep, stop, standby, and shutdown modes for low-power applications.
- What is the operating voltage range of the STM32G431CBU3?
The operating voltage range is from 1.71 V to 3.6 V.
- What types of timers are available on the STM32G431CBU3?
The device includes one 32-bit timer, ten 16-bit timers, and two watchdog timers.
- Does the STM32G431CBU3 have any security features?
Yes, it includes readout protection, write protection, securable memory area, and proprietary code readout protection.
- What development tools are supported by the STM32G431CBU3?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
- In what package is the STM32G431CBU3 available?
The device is available in a UFQFPN 48 7x7x0.55 mm package.
