Overview
The STM32G491MET6 is a high-performance microcontroller from STMicroelectronics, part of the STM32G4 series. It is based on the Arm® Cortex®-M4 core with a floating-point unit (FPU), offering a balance of performance and power efficiency. This microcontroller is designed for a wide range of applications, including industrial control, medical devices, and consumer electronics, due to its rich set of peripherals and advanced analog capabilities.
Key Specifications
| Parameter | Value |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU |
| Maximum Clock Frequency | 170 MHz |
| Program Memory Size | 512 KB Flash |
| Data Bus Width | 32 bit |
| SRAM | 112 KB |
| ADC Resolution | Up to 16-bit with hardware oversampling |
| DAC Channels | 4 x 12-bit DAC channels |
| Operating Voltage Range | 1.71 V to 3.6 V |
| Package Type | LQFP80 (12 x 12 mm) |
Key Features
- Core and Performance: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) for 0-wait-state execution from flash memory, and up to 170 MHz frequency with 213 DMIPS.
- Memory: 512 KB of flash memory with ECC support, proprietary code readout protection (PCROP), and securable memory area; 112 KB of SRAM with hardware parity check.
- Analog Capabilities: 3 x ADCs with up to 16-bit resolution, 4 x 12-bit DAC channels, 4 x ultra-fast rail-to-rail analog comparators, and 4 x operational amplifiers.
- Communication Interfaces: 2 x FDCAN controllers, 3 x I2C Fast mode plus, 5 x USART/UARTs, 1 x LPUART, 3 x SPIs, 1 x SAI (serial audio interface), and USB 2.0 full-speed interface.
- Timers and Clocks: 15 timers including advanced motor control timers, general-purpose timers, and low-power timers; various clock sources including crystal oscillators and internal RC oscillators.
- Low-Power Modes: Sleep, stop, standby, and shutdown modes to optimize power consumption.
- Security and Development Tools: True random number generator (RNG), CRC calculation unit, 96-bit unique ID, and support for serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
Applications
- Industrial Control: Motor control, industrial automation, and process control systems.
- Medical Devices: Portable medical devices, diagnostic equipment, and medical imaging systems.
- Consumer Electronics: Smart home devices, wearables, and IoT applications.
- Automotive Systems: In-vehicle infotainment, driver assistance systems, and automotive control units.
- Energy and Utilities: Smart meters, energy management systems, and renewable energy control systems.
Q & A
- What is the core architecture of the STM32G491MET6?
The STM32G491MET6 is based on the Arm® 32-bit Cortex®-M4 CPU with a floating-point unit (FPU).
- What is the maximum clock frequency of the STM32G491MET6?
The maximum clock frequency is 170 MHz.
- How much flash memory does the STM32G491MET6 have?
The STM32G491MET6 has 512 KB of flash memory.
- What are the key analog features of the STM32G491MET6?
The key analog features include 3 x ADCs with up to 16-bit resolution, 4 x 12-bit DAC channels, 4 x ultra-fast rail-to-rail analog comparators, and 4 x operational amplifiers.
- What communication interfaces are available on the STM32G491MET6?
The available communication interfaces include 2 x FDCAN controllers, 3 x I2C Fast mode plus, 5 x USART/UARTs, 1 x LPUART, 3 x SPIs, 1 x SAI, and USB 2.0 full-speed interface.
- What are the low-power modes supported by the STM32G491MET6?
The STM32G491MET6 supports sleep, stop, standby, and shutdown modes to optimize power consumption.
- Does the STM32G491MET6 have any security features?
Yes, it includes a true random number generator (RNG), CRC calculation unit, and 96-bit unique ID for enhanced security.
- What development tools are supported by the STM32G491MET6?
The STM32G491MET6 supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for development and debugging.
- What is the operating voltage range of the STM32G491MET6?
The operating voltage range is from 1.71 V to 3.6 V.
- What package types are available for the STM32G491MET6?
The STM32G491MET6 is available in LQFP80 (12 x 12 mm) package among others.
