Overview
The STM32G474CET3 is a high-performance ARM-based 32-bit microcontroller from STMicroelectronics, part of the STM32G4 series. It is built around the Arm® Cortex®-M4 32-bit RISC core, which includes a single-precision floating-point unit (FPU) and supports all Arm single-precision data-processing instructions and DSP (digital signal processing) instructions. The 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. It also includes a memory protection unit (MPU) to enhance application security.
The microcontroller is equipped with 512 Kbytes of Flash memory and 96 Kbytes of SRAM, along with various protection mechanisms such as readout protection, write protection, and securable memory areas. It supports a wide range of operating conditions, including an operating voltage range of 1.71 V to 3.6 V and an industrial temperature range from -40°C to 125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU |
| 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 CCM SRAM |
| Operating Voltage | 1.71 V to 3.6 V |
| Temperature Range | -40°C to 125°C |
| Package | 48-pin LQFP |
| Communication Interfaces | CAN, I2C, I2S, SAI, SPI, UART, USART, USB 2.0 full-speed |
| Timers | 2 x 32-bit timers, 11 x 16-bit timers, 1 x low-power timer, Hi-Resolution Timer (HRTIM) |
| 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 |
| Development Support | Serial wire debug (SWD), JTAG, Embedded Trace Macrocell™ |
Key Features
- High-Performance Core: Arm® Cortex®-M4 32-bit RISC core with FPU and DSP instructions.
- Memory and Protection: 512 Kbytes of Flash memory with ECC support, 96 Kbytes of SRAM, and various protection mechanisms like PCROP and securable memory areas.
- Mathematical Accelerators: CORDIC for trigonometric functions acceleration and FMAC for filter functions.
- Analog Peripherals: Five 12-bit ADCs, seven 12-bit DAC channels, seven ultra-fast rail-to-rail analog comparators, and six operational amplifiers.
- Communication Interfaces: Multiple interfaces including CAN, I2C, I2S, SAI, SPI, UART, USART, and USB 2.0 full-speed.
- Timers and Clock Management: Various timers including 32-bit and 16-bit timers, Hi-Resolution Timer (HRTIM), and clock management options like crystal oscillators and internal RC oscillators.
- Low-Power Modes: Sleep, stop, standby, and shutdown modes to support low-power applications.
- Development Support: Serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for comprehensive development support.
Applications
The STM32G474CET3 is versatile and can be used in a wide range of applications, including:
- Industrial Automation: Motor control, industrial communication, and automation systems.
- Medical Devices: Medical equipment requiring high precision and reliability.
- Consumer Electronics: Advanced consumer devices needing robust processing and analog capabilities.
- Automotive Systems: In-vehicle systems, including infotainment and safety features.
- IoT Devices: Internet of Things applications requiring low power consumption and high performance.
Q & A
- What is the core architecture of the STM32G474CET3?
The STM32G474CET3 is based on the Arm® Cortex®-M4 32-bit RISC core with a single-precision floating-point unit (FPU) and DSP instructions.
- What is the maximum operating frequency of the STM32G474CET3?
The maximum operating frequency is up to 170 MHz.
- How much Flash and SRAM memory does the STM32G474CET3 have?
The device has 512 Kbytes of Flash memory and 96 Kbytes of SRAM.
- What are the key protection mechanisms in the STM32G474CET3?
The device includes readout protection, write protection, securable memory area, and proprietary code readout protection (PCROP).
- What are the available communication interfaces on the STM32G474CET3?
The device features CAN, I2C, I2S, SAI, SPI, UART, USART, and USB 2.0 full-speed interfaces.
- What are the low-power modes supported by the STM32G474CET3?
The device supports sleep, stop, standby, and shutdown modes to reduce power consumption.
- What is the temperature range for the STM32G474CET3?
The operating temperature range is from -40°C to 125°C.
- What development tools are available for the STM32G474CET3?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for development.
- What types of timers are available on the STM32G474CET3?
The device includes 32-bit and 16-bit timers, a Hi-Resolution Timer (HRTIM), and other specialized timers for motor control and low-power applications.
- What analog peripherals are included in the STM32G474CET3?
The device features five 12-bit ADCs, seven 12-bit DAC channels, seven ultra-fast rail-to-rail analog comparators, and six operational amplifiers.
