Overview
The STM32G491CEU6, produced by STMicroelectronics, is a high-performance microcontroller based on the Arm® Cortex®-M4 32-bit RISC core. It 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 includes high-speed memories such as up to 512 Kbytes of flash memory and 112 Kbytes of SRAM, along with a Quad-SPI flash memory interface. It also offers a wide range of peripherals and communication interfaces, making it suitable for various applications requiring advanced analog and digital capabilities.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) |
| Frequency | Up to 170 MHz with 213 DMIPS |
| Memories | 512 Kbytes of flash memory, 112 Kbytes of SRAM, 16 Kbytes of CCM SRAM |
| ADCs | Three 12-bit ADCs (up to 36 channels), 0.25 µs conversion time |
| DACs | Four 12-bit DAC channels (two external, two internal) |
| Timers | One 32-bit timer, eleven 16-bit timers, including advanced motor control timers |
| Communication Interfaces | Three I2Cs, three SPIs, five USART/UARTs, two FDCAN controllers, USB 2.0 full-speed interface |
| Operating Conditions | VDD, VDDA voltage range: 1.71 V to 3.6 V, Operating temperature: -40 to +85 °C (industrial grade) |
| Package | UFQFPN 48 7x7x0.55 mm |
Key Features
- Includes ST state-of-the-art patented technology
- Mathematical hardware accelerators: CORDIC for trigonometric functions and FMAC for filter functions
- Quad-SPI flash memory interface
- Low-power modes: sleep, stop, standby, and shutdown
- VBAT supply for RTC and backup registers
- Internal voltage reference buffer (VREFBUF) supporting three output voltages
- Four ultra-fast rail-to-rail analog comparators and four operational amplifiers
- 16-channel DMA controller and interconnect matrix
- True random number generator (RNG) and CRC calculation unit
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
Applications
The STM32G491CEU6 is versatile and can be used in a variety of applications, including:
- Industrial automation and control systems
- Medical devices requiring advanced analog and digital capabilities
- Automotive systems, especially those needing high-performance and low-power operation
- Consumer electronics requiring sophisticated user interfaces and real-time processing
- IoT devices that need efficient power management and robust communication interfaces
Q & A
- What is the core architecture of the STM32G491CEU6?
The STM32G491CEU6 is based on the Arm® Cortex®-M4 32-bit RISC core.
- What is the maximum operating frequency of the STM32G491CEU6?
The maximum operating frequency is up to 170 MHz with 213 DMIPS.
- How much flash and SRAM memory does the STM32G491CEU6 have?
The device has up to 512 Kbytes of flash memory and 112 Kbytes of SRAM.
- What types of ADCs and DACs are available on the STM32G491CEU6?
It features three 12-bit ADCs and four 12-bit DAC channels.
- What are the key communication interfaces available on this microcontroller?
The device includes three I2Cs, three SPIs, five USART/UARTs, two FDCAN controllers, and a USB 2.0 full-speed interface.
- What are the operating voltage and temperature ranges for the STM32G491CEU6?
The operating voltage range is 1.71 V to 3.6 V, and the operating temperature range is -40 to +85 °C (industrial grade).
- What kind of power-saving modes does the STM32G491CEU6 support?
The device supports sleep, stop, standby, and shutdown low-power modes.
- Does the STM32G491CEU6 have any mathematical hardware accelerators?
Yes, it includes CORDIC for trigonometric functions and FMAC for filter functions.
- What is the package type for the STM32G491CEU6?
The package type is UFQFPN 48 7x7x0.55 mm.
- Does the STM32G491CEU6 support any specific development tools?
Yes, it supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
- Is the STM32G491CEU6 compliant with any environmental standards?
Yes, it is ECOPACK2 compliant.
