Overview
The STM32G474MEY6TR is a mainstream Arm Cortex-M4 microcontroller from STMicroelectronics. It is part of the STM32G474xB/xC/xE family, which is based on the high-performance Arm Cortex-M4 32-bit RISC core. This MCU operates at a frequency of up to 170 MHz and features a single-precision floating-point unit (FPU), DSP instructions, and a memory protection unit (MPU) for enhanced security. The device is equipped with 512 Kbytes of Flash memory and 96 Kbytes of SRAM, along with various peripherals and interfaces, making it suitable for a wide range of applications requiring high performance and low power consumption.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm 32-bit Cortex-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) |
| Frequency | Up to 170 MHz with 213 DMIPS |
| Flash Memory | 512 Kbytes with ECC support, two banks read-while-write, PCROP, securable memory area |
| SRAM | 96 Kbytes with hardware parity check on the first 32 Kbytes, 32 Kbytes CCM SRAM |
| External Memory Interface | FSMC for SRAM, PSRAM, NOR, and NAND memories; Quad-SPI memory interface |
| 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 | Five fast 12-bit ADCs, up to 42 channels |
| DACs | Seven 12-bit DAC channels (3 external, 4 internal) |
| Timers | Two 32-bit timers, eleven 16-bit timers, one 16-bit low-power timer, high resolution timer with 184 ps resolution |
| Communication Interfaces | Four I2Cs, four SPIs, three USARTs, two UARTs, one low-power UART, three FDCANs, one SAI, USB device, UCPD |
| Package | WLCSP 81 4.3x4x0.6 P 0.4 mm |
Key Features
- Arm 32-bit Cortex-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) allowing 0-wait-state execution from Flash memory
- Mathematical hardware accelerators: CORDIC for trigonometric functions and FMAC for filter functions
- High-speed memories: 512 Kbytes of Flash memory and 96 Kbytes of SRAM
- Extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix
- Protection mechanisms: readout protection, write protection, securable memory area, and proprietary code readout protection
- Advanced analog peripherals: five fast 12-bit ADCs, seven comparators, six operational amplifiers, and seven DAC channels
- Comprehensive set of power-saving modes: sleep, stop, standby, and shutdown
- Independent power supplies for analog components and backup of RTC and registers via VBAT input
- Standard and advanced communication interfaces including I2C, SPI, USART, UART, FDCAN, SAI, USB, and UCPD
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
Applications
- Industrial automation and control systems
- Medical devices requiring high precision and low power consumption
- Aerospace and defense applications where security and reliability are critical
- Automotive systems, including advanced driver-assistance systems (ADAS) and vehicle control units
- Consumer electronics such as smart home devices and wearables
- IoT devices that require robust performance and power efficiency
Q & A
- What is the core architecture of the STM32G474MEY6TR?
The core architecture is based on the Arm 32-bit Cortex-M4 CPU with a single-precision floating-point unit (FPU) and Adaptive real-time accelerator (ART Accelerator).
- What is the maximum operating frequency of the STM32G474MEY6TR?
The maximum operating frequency is up to 170 MHz with 213 DMIPS.
- How much Flash and SRAM memory does the STM32G474MEY6TR have?
The device has 512 Kbytes of Flash memory and 96 Kbytes of SRAM.
- What are the key analog peripherals of the STM32G474MEY6TR?
The key analog peripherals include five fast 12-bit ADCs, seven comparators, six operational amplifiers, and seven DAC channels.
- What communication interfaces are available on the STM32G474MEY6TR?
The device features four I2Cs, four SPIs, three USARTs, two UARTs, one low-power UART, three FDCANs, one SAI, USB device, and UCPD.
- What are the power-saving modes available on the STM32G474MEY6TR?
The device supports sleep, stop, standby, and shutdown power-saving modes.
- What is the operating temperature range of the STM32G474MEY6TR?
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 STM32G474MEY6TR?
The device is available in a WLCSP 81 4.3x4x0.6 P 0.4 mm package.
- Does the STM32G474MEY6TR support independent power supplies for analog components?
Yes, it supports independent power supplies for ADC, DAC, OPAMPs, and comparators.
- What development tools are supported by the STM32G474MEY6TR?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
