Overview
The STM32L4R5QII6 is a microcontroller from STMicroelectronics, part of the ultra-low-power STM32L4+ Series. It is based on the high-performance 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. This microcontroller is designed for low-power applications and features advanced peripherals and communication interfaces, making it suitable for a wide range of applications, including industrial, medical, and consumer electronics.
Key Specifications
| Specification | Value |
|---|---|
| Core | Arm Cortex-M4 32-bit RISC core with FPU |
| Operating Frequency | Up to 120 MHz |
| Program Memory Size | 2 MB (2M x 8) Flash memory |
| RAM Size | 640 Kbytes SRAM |
| Voltage Supply (Vcc/Vdd) | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to +85 °C / +125 °C |
| Package | UFBGA-132 7x7x0.6 P 0.5 mm |
| ADC | 12-bit, 5 Msps, up to 16-bit with hardware oversampling |
| DAC | 2x 12-bit, low-power sample and hold |
| Operational Amplifiers | 2x with built-in PGA |
| Comparators | 2x ultra-low-power |
| Timers | 16x timers (including 2x 32-bit, 11x 16-bit, and 2x low-power 16-bit) |
| Communication Interfaces | USB OTG 2.0 full-speed, 4x I2C, 3x SPI, 3x USART, 2x UART, 1x CAN, 1x SDMMC, etc. |
Key Features
- Ultra-low-power with FlexPowerControl, offering various power-saving modes such as Shutdown, Standby, and Stop modes.
- High-performance Arm Cortex-M4 core with FPU, DSP instructions, and a memory protection unit (MPU).
- Advanced graphics features including Chrom-ART Accelerator (DMA2D) and Chrom-GRC (GFXMMU).
- Rich analog peripherals including 12-bit ADC, 12-bit DAC, operational amplifiers, and ultra-low-power comparators.
- Extensive range of communication interfaces including USB OTG, I2C, SPI, USART, UART, CAN, and SDMMC.
- Support for capacitive sensing with up to 24 channels.
- Internal voltage reference buffer, low-power RTC, and multiple timer options.
- Independent power supplies for various components like ADC, DAC, OPAMPs, and USB.
Applications
- Industrial automation and control systems.
- Medical devices requiring low power consumption and high performance.
- Consumer electronics such as smart home devices and wearables.
- Automotive systems, including motor control and sensor interfaces.
- IoT devices that need efficient power management and advanced peripherals.
Q & A
- What is the core architecture of the STM32L4R5QII6?
The STM32L4R5QII6 is based on the Arm Cortex-M4 32-bit RISC core with a single-precision floating-point unit (FPU).
- What is the maximum operating frequency of the STM32L4R5QII6?
The maximum operating frequency is up to 120 MHz.
- How much program memory and RAM does the STM32L4R5QII6 have?
The STM32L4R5QII6 has 2 MB of Flash memory and 640 Kbytes of SRAM.
- What is the voltage supply range for the STM32L4R5QII6?
The voltage supply range is from 1.71 V to 3.6 V.
- What are the key analog peripherals of the STM32L4R5QII6?
The key analog peripherals include a 12-bit ADC, 12-bit DAC, operational amplifiers, and ultra-low-power comparators.
- What communication interfaces are available on the STM32L4R5QII6?
The available communication interfaces include USB OTG 2.0 full-speed, I2C, SPI, USART, UART, CAN, and SDMMC.
- What is the temperature range for the STM32L4R5QII6?
The temperature range is from -40 °C to +85 °C / +125 °C.
- Does the STM32L4R5QII6 support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels.
- What power-saving modes are available on the STM32L4R5QII6?
The available power-saving modes include Shutdown, Standby, and Stop modes, among others.
- Can the STM32L4R5QII6 be used in industrial automation?
Yes, it is suitable for industrial automation and control systems due to its high performance and low power consumption.
