Overview
The STM32G474VBT3 is a high-performance 32-bit microcontroller from STMicroelectronics, part of the STM32G4 series. It is based on the Arm® Cortex®-M4 core with a floating-point unit (FPU), offering advanced features and peripherals for a wide range of applications. This MCU integrates ST's state-of-the-art patented technology, including an adaptive real-time accelerator (ART Accelerator) that allows 0-wait-state execution from Flash memory, enhancing performance and efficiency.
The device operates at a frequency of up to 170 MHz with 213 DMIPS, and it includes a rich set of analog and digital peripherals, making it suitable for complex and demanding applications.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU |
| Maximum Clock Frequency | 170 MHz / 213 DMIPS |
| Flash Memory | 512 Kbytes with ECC support, two banks read-while-write, PCROP, securable memory area, 1 Kbyte OTP |
| SRAM | 96 Kbytes with hardware parity check on the first 32 Kbytes, 32 Kbytes of CCM SRAM |
| ADC Resolution | 12-bit, up to 16-bit with hardware oversampling, 0 to 3.6 V conversion range |
| DAC Channels | 7 x 12-bit DAC channels (3 buffered external, 4 unbuffered internal) |
| Timers | 17 timers including HRTIM, 32-bit timers, 16-bit timers, watchdog timers, and low-power timer |
| Communication Interfaces | 3 x FDCAN, 4 x I2C, 5 x USART/UARTs, 1 x LPUART, 4 x SPIs, 1 x SAI, USB 2.0 full-speed interface |
| Power Supply | VDD, VDDA voltage range: 1.71 V to 3.6 V |
| Low-Power Modes | Sleep, stop, standby, and shutdown |
| Number of I/Os | Up to 107 fast I/Os, several with 5 V tolerant capability |
Key Features
- Advanced Core: Arm® 32-bit Cortex®-M4 CPU with FPU and ART Accelerator for 0-wait-state execution from Flash memory.
- Mathematical Hardware Accelerators: CORDIC for trigonometric functions and FMAC for filter mathematical acceleration.
- Analog Peripherals: 5 x 12-bit ADCs, 7 x 12-bit DAC channels, 7 x ultra-fast rail-to-rail analog comparators, and 6 x operational amplifiers.
- Communication Interfaces: 3 x FDCAN, 4 x I2C, 5 x USART/UARTs, 1 x LPUART, 4 x SPIs, 1 x SAI, and USB 2.0 full-speed interface.
- Timer and Clock Management: 17 timers including HRTIM, and various clock sources like crystal oscillators and internal RC oscillators.
- Low-Power Modes: Sleep, stop, standby, and shutdown modes to optimize power consumption.
- Security Features: Memory protection unit, PCROP, securable memory area, and true random number generator.
Applications
The STM32G474VBT3 is versatile and can be used in a variety of applications, including:
- Industrial Automation: Motor control, power management, and industrial communication protocols.
- Medical Devices: High-precision analog measurements and real-time processing.
- Automotive Systems: Advanced driver-assistance systems (ADAS), infotainment, and vehicle networking.
- Consumer Electronics: Smart home devices, wearables, and IoT applications.
- Aerospace and Defense: High-reliability systems requiring advanced processing and low power consumption.
Q & A
- What is the core architecture of the STM32G474VBT3?
The core is based on the Arm® 32-bit Cortex®-M4 CPU with a floating-point unit (FPU).
- What is the maximum clock frequency of the STM32G474VBT3?
The maximum clock frequency is 170 MHz with 213 DMIPS.
- How much Flash and SRAM memory does the STM32G474VBT3 have?
The device has 512 Kbytes of Flash memory and 96 Kbytes of SRAM.
- What are the key analog peripherals of the STM32G474VBT3?
The device includes 5 x 12-bit ADCs, 7 x 12-bit DAC channels, 7 x ultra-fast rail-to-rail analog comparators, and 6 x operational amplifiers.
- What communication interfaces are available on the STM32G474VBT3?
The device supports 3 x FDCAN, 4 x I2C, 5 x USART/UARTs, 1 x LPUART, 4 x SPIs, 1 x SAI, and USB 2.0 full-speed interface.
- What are the low-power modes available on the STM32G474VBT3?
The device supports sleep, stop, standby, and shutdown modes.
- Does the STM32G474VBT3 have any security features?
Yes, it includes a memory protection unit, PCROP, securable memory area, and a true random number generator.
- What is the voltage range for the STM32G474VBT3?
The voltage range is 1.71 V to 3.6 V for VDD and VDDA.
- How many I/Os does the STM32G474VBT3 have?
The device has up to 107 fast I/Os, with several being 5 V tolerant.
- What are some common applications for the STM32G474VBT3?
Common applications include industrial automation, medical devices, automotive systems, consumer electronics, and aerospace and defense systems.
