Overview
The STM32L4R5VIT6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L4+ Series. It is based on the high-performance Arm® Cortex®-M4 32-bit RISC core, operating at a frequency of up to 120 MHz. This microcontroller is designed for low-power applications, featuring a single-precision floating-point unit (FPU) and a full set of DSP instructions. It also includes a memory protection unit (MPU) for enhanced security. The device is equipped with 2 Mbytes of Flash memory and 640 Kbytes of SRAM, along with various peripherals and communication interfaces, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU |
| Frequency | Up to 120 MHz |
| Memory | 2 Mbytes Flash, 640 Kbytes SRAM |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to 85/125 °C |
| Package | LQFP 100 14x14x1.4 mm |
| ADC | 12-bit, 5 Msps |
| DAC | 2 x 12-bit |
| Timers | 16x timers (including 2 x 16-bit advanced motor-control, 2 x 32-bit, etc.) |
| Communication Interfaces | USB OTG, 4 x I2C, 3 x SPI, 3 x USART, 2 x UART, CAN, SDMMC, etc. |
| Capacitive Sensing Channels | Up to 24 channels |
| Graphics Features | Chrom-ART Accelerator, MIPI DSI Host controller, LCD-TFT controller |
Key Features
- Ultra-low-power with FlexPowerControl, including various power-saving modes such as Shutdown, Standby, and Stop modes.
- Batch acquisition mode (BAM) and support for external sigma delta modulators (DFSDM).
- Advanced graphics features including Chrom-ART Accelerator (DMA2D) and MIPI DSI Host controller.
- Rich analog peripherals including 12-bit ADC, 12-bit DAC, operational amplifiers, and comparators.
- Extensive range of communication interfaces such as USB OTG, I2C, SPI, USART, UART, CAN, and SDMMC.
- Up to 136 fast I/Os, most 5 V-tolerant, with up to 14 I/Os having independent supply down to 1.08 V.
- Internal voltage reference buffer, low-power RTC, and multiple timers for various applications.
- Support for touchkey, linear, and rotary touch sensors through capacitive sensing channels.
Applications
The STM32L4R5VIT6 microcontroller is versatile and can be used in a variety of applications, including:
- 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, especially those requiring advanced graphics and communication interfaces.
- IoT devices that need efficient power management and robust peripherals.
Q & A
- What is the core architecture of the STM32L4R5VIT6 microcontroller?
The core architecture is based on the Arm® 32-bit Cortex®-M4 CPU with a single-precision floating-point unit (FPU).
- What is the maximum operating frequency of the STM32L4R5VIT6?
The maximum operating frequency is up to 120 MHz.
- What are the power supply voltage ranges for the STM32L4R5VIT6?
The power supply voltage ranges from 1.71 V to 3.6 V.
- What are the key power-saving modes available in the STM32L4R5VIT6?
The key power-saving modes include Shutdown, Standby, and Stop modes, with options like VBAT mode for RTC and backup registers.
- What types of timers are available on the STM32L4R5VIT6?
The device includes 16 timers, including 2 x 16-bit advanced motor-control timers, 2 x 32-bit timers, and several general-purpose and low-power timers.
- What communication interfaces are supported by the STM32L4R5VIT6?
The device supports USB OTG, I2C, SPI, USART, UART, CAN, SDMMC, and other communication interfaces.
- Does the STM32L4R5VIT6 support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What are the advanced graphics features of the STM32L4R5VIT6?
The device features a Chrom-ART Accelerator (DMA2D), MIPI DSI Host controller, and an LCD-TFT controller.
- What is the temperature range for the STM32L4R5VIT6?
The operating temperature range is from -40 °C to 85/125 °C.
- What types of memory are available on the STM32L4R5VIT6?
The device includes 2 Mbytes of Flash memory and 640 Kbytes of SRAM.
