Overview
The STM32G474VET3 is a high-performance microcontroller from STMicroelectronics, part of the STM32G474xB/xC/xE family. It is based on the Arm® 32-bit Cortex®-M4 CPU, which includes a single-precision floating-point unit (FPU) and supports all Arm single-precision data-processing instructions and DSP instructions. This microcontroller operates at a frequency of up to 170 MHz and features an Adaptive real-time accelerator (ART Accelerator) for 0-wait-state execution from Flash memory. It is designed to enhance application security with a memory protection unit (MPU) and various protection mechanisms for embedded Flash memory and SRAM.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, ART Accelerator |
| Operating Frequency | Up to 170 MHz |
| 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 |
| External Memory Interface | FSMC for SRAM, PSRAM, NOR, and NAND memories; Quad-SPI memory interface |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 to +85 °C (+105 °C junction), -40 to +125 °C (+130 °C junction) |
| ADCs | 5 x 12-bit ADCs, up to 42 channels, resolution up to 16-bit with hardware oversampling |
| DACs | 7 x 12-bit DAC channels, 3 external and 4 internal |
| Timers | 17 timers including HRTIM, 32-bit timers, 16-bit timers, and low-power timer |
| Communication Interfaces | 3 x FDCAN, 4 x I2C, 5 x USART/UARTs, 4 x SPIs, 1 x SAI, USB 2.0 full-speed interface |
| Package | LQFP 100 14x14x1.4 mm |
Key Features
- Mathematical hardware accelerators: CORDIC for trigonometric functions and FMAC for filter functions
- Advanced analog peripherals: 5 x 12-bit ADCs, 7 x 12-bit DAC channels, 7 x ultra-fast rail-to-rail analog comparators, 6 x operational amplifiers
- High-resolution timer (HRTIM) with 184 ps resolution and complex waveform builder
- Multiple communication interfaces: FDCAN, I2C, USART/UART, SPI, SAI, USB 2.0 full-speed
- Low-power modes: sleep, stop, standby, and shutdown; VBAT supply for RTC and backup registers
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
- True random number generator (RNG) and CRC calculation unit with 96-bit unique ID
Applications
The STM32G474VET3 is suitable for a wide range of applications, including:
- Industrial automation and control systems
- Medical devices requiring advanced analog and digital signal processing
- Automotive systems, especially those needing high-speed and secure data processing
- Consumer electronics that require low power consumption and high performance
- IoT devices that need robust communication interfaces and security features
Q & A
- What is the core architecture of the STM32G474VET3?
The STM32G474VET3 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 STM32G474VET3?
The maximum operating frequency is up to 170 MHz.
- How much Flash and SRAM memory does the STM32G474VET3 have?
The device has 512 Kbytes of Flash memory and 96 Kbytes of SRAM.
- What are the key analog peripherals of the STM32G474VET3?
The device features 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 STM32G474VET3?
The device includes 3 x FDCAN, 4 x I2C, 5 x USART/UARTs, 4 x SPIs, 1 x SAI, and a USB 2.0 full-speed interface.
- What are the power-saving modes available on the STM32G474VET3?
The device supports sleep, stop, standby, and shutdown modes, along with a VBAT supply for RTC and backup registers.
- What is the temperature range for the STM32G474VET3?
The operating temperature range is -40 to +85 °C (+105 °C junction) and -40 to +125 °C (+130 °C junction).
- What package options are available for the STM32G474VET3?
The device is available in an LQFP 100 14x14x1.4 mm package.
- Does the STM32G474VET3 support secure memory areas?
Yes, it includes proprietary code readout protection (PCROP) and a securable memory area.
- What development tools are supported by the STM32G474VET3?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
