ARM® Cortex®-M4F STM32G4 Microcontroller IC 32-Bit 170MHz 512KB (512K x 8) FLASH 64-LQFP (10x10)
The STM32G491RET6 from STMicroelectronics is a high-performance 32-bit microcontroller based on the Arm® Cortex®-M4 core with Floating Point Unit (FPU), designed for advanced embedded applications requiring high computational performance, precise analog processing, and real-time control. It belongs to the STM32G4 series and integrates enhanced analog peripherals, motor-control timers, communication interfaces, security features, and hardware accelerators such as CORDIC and FMAC.
The device operates at up to 170 MHz, provides 512 KB Flash memory, and includes 96 KB SRAM, making it suitable for applications such as motor control, digital power conversion, industrial automation, robotics, and embedded control systems.
Key Features
Core: Arm® Cortex®-M4 32-bit CPU with FPU, DSP instructions, and MPU
Maximum CPU Frequency: Up to 170 MHz (up to 213 DMIPS)
Memory:
512 KB Flash memory with ECC support
96 KB SRAM with parity checking features
Quad-SPI memory interface
Operating Voltage: 1.71 V to 3.6 V
Package: LQFP-64
Advanced Analog Features:
3 × 12-bit ADCs with high-speed conversion
4 × 12-bit DAC channels
4 × Rail-to-Rail operational amplifiers
4 × Fast analog comparators
Internal voltage reference buffer
Hardware Accelerators:
CORDIC accelerator for trigonometric calculations
FMAC (Filter Math Accelerator) for digital filtering applications
Timers & Motor Control:
Advanced PWM timers for motor-control applications
Multiple 16-bit and 32-bit timers
Support for encoder and PWM control
Communication Interfaces:
2 × FDCAN interfaces
5 × USART/UART
3 × SPI interfaces
3 × I²C interfaces
USB 2.0 Full-Speed interface
SAI audio interface
Security Features:
True Random Number Generator (TRNG)
CRC calculation unit
Unique device ID
Debug & Programming:
SWD and JTAG debugging support
Typical Applications
Motor control and BLDC controllers
Digital power converters
Industrial automation equipment
Robotics and motion control
Smart sensors and embedded control systems
Power management applications
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