Overview
The STM32G474RET6U is a high-performance microcontroller from STMicroelectronics, based on the Arm® Cortex®-M4 32-bit RISC core. This device operates at a frequency of up to 170 MHz and features an Adaptive Real-Time (ART) accelerator, allowing 0-wait-state execution from Flash memory. The Cortex-M4 core includes a single-precision floating-point unit (FPU), digital signal processing (DSP) instructions, and a memory protection unit (MPU) for enhanced security. The microcontroller is equipped with 512 Kbytes of Flash memory and 128 Kbytes of SRAM, along with various protection mechanisms for embedded memory.
Key Specifications
| Parameter | Value |
|---|---|
| Core Processor | Arm® Cortex®-M4F 32-bit Single-Core |
| Frequency | Up to 170 MHz |
| DMIPS | 213 DMIPS |
| Flash Memory | 512 Kbytes |
| SRAM | 128 Kbytes |
| ADCs | 5 x 12-bit, up to 42 channels |
| DACs | 7 x 12-bit, 3 external and 4 internal channels |
| Timers | 2 x 32-bit, 11 x 16-bit, 1 x low-power timer |
| Communication Interfaces | 4 x I2C, 4 x SPI, 3 x USART, 1 x LPUART, 3 x FDCAN, 1 x SAI, USB 2.0 full-speed |
| Operating Voltage | 1.71 V to 3.6 V |
| Operating Temperature | -40°C to 85°C |
Key Features
- Arm® Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator), and DSP instructions.
- Mathematical hardware accelerators: CORDIC for trigonometric functions and FMAC for filter functions.
- High-speed memories: 512 Kbytes of Flash memory and 128 Kbytes of SRAM.
- External memory controller (FSMC) and Quad-SPI Flash memory interface.
- Extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix.
- Five fast 12-bit ADCs, seven comparators, six operational amplifiers, and seven DAC channels.
- Multiple timers including general-purpose timers, advanced motor control timers, and a high-resolution timer with 184 ps resolution.
- Standard and advanced communication interfaces such as I2C, SPI, USART, FDCAN, SAI, and USB 2.0 full-speed.
- True random number generator, CRC calculation unit, and 96-bit unique ID.
- Low-power modes: sleep, stop, standby, and shutdown.
Applications
- Digital power solutions such as buck-boost converters and power LED lighting.
- Class-D audio amplifiers and other audio applications.
- Motor control and advanced motor control systems.
- Industrial automation and control systems.
- IoT and smart home devices requiring high-performance and low power consumption.
- Medical devices and healthcare applications needing precise analog and digital capabilities.
Q & A
- What is the core processor of the STM32G474RET6U?
The core processor is the Arm® Cortex®-M4F 32-bit Single-Core.
- What is the maximum operating frequency of the STM32G474RET6U?
The maximum operating frequency is up to 170 MHz.
- How much Flash and SRAM memory does the STM32G474RET6U have?
The device has 512 Kbytes of Flash memory and 128 Kbytes of SRAM.
- What types of ADCs and DACs are available on the STM32G474RET6U?
The device features 5 x 12-bit ADCs and 7 x 12-bit DAC channels.
- What communication interfaces are supported by the STM32G474RET6U?
The device supports I2C, SPI, USART, FDCAN, SAI, and USB 2.0 full-speed interfaces.
- What are the operating voltage and temperature ranges for the STM32G474RET6U?
The operating voltage range is 1.71 V to 3.6 V, and the operating temperature range is -40°C to 85°C.
- Does the STM32G474RET6U support low-power modes?
Yes, it supports sleep, stop, standby, and shutdown low-power modes.
- What kind of mathematical hardware accelerators are included in the STM32G474RET6U?
The device includes CORDIC for trigonometric functions and FMAC for filter functions.
- Is the STM32G474RET6U suitable for motor control applications?
Yes, it is suitable for motor control applications with its advanced motor control timers and other relevant peripherals.
- Does the STM32G474RET6U have any security features?
Yes, it includes a memory protection unit (MPU), readout protection, write protection, securable memory area, and proprietary code readout protection.
