Overview
The STM32L4R7VIT6 is a member of the STM32L4+ Series, a family of ultra-low-power microcontrollers from STMicroelectronics. These devices are based on the high-performance Arm® Cortex®-M4 32-bit RISC core, operating at frequencies up to 120 MHz. The Cortex-M4 core includes a single-precision floating-point unit (FPU), digital signal processing (DSP) instructions, and a memory protection unit (MPU) for enhanced security. The microcontroller features 2 Mbytes of Flash memory and 640 Kbytes of SRAM, along with a flexible external memory controller and two OctoSPI Flash memories interfaces.
The STM32L4R7VIT6 is designed for low-power applications, offering various power-saving modes and independent power supplies for analog and digital components. It supports a wide temperature range from -40 to +85 °C (or +125 °C in certain configurations) and operates from a 1.71 to 3.6 V power supply.
Key Specifications
| Parameter | Specification |
|---|---|
| CPU Core | Arm® Cortex®-M4 with FPU |
| Maximum Clock Frequency | 120 MHz |
| Flash Memory | 2 Mbytes |
| SRAM | 640 Kbytes |
| ADC Resolution | 12-bit (up to 16-bit with hardware oversampling) |
| DAC Channels | 2 x 12-bit |
| Operational Amplifiers | 2 |
| Comparators | 2 |
| Timers | 16-bit: 11, 32-bit: 2 |
| Communication Interfaces | USB OTG 2.0, 4 x I2C, 3 x SPI, 3 x USART, 2 x UART, CAN 2.0B, SDMMC |
| Power Supply | 1.71 to 3.6 V |
| Temperature Range | -40 to +85 °C (or +125 °C) |
| Package | LQFP 100 14x14x1.4 mm |
Key Features
- Ultra-low-power with FlexPowerControl
- Arm® Cortex®-M4 CPU with FPU, DSP instructions, and MPU
- High-speed memories: 2 Mbytes of Flash and 640 Kbytes of SRAM
- Flexible external memory controller and two OctoSPI Flash memories interfaces
- Fast 12-bit ADC (5 Msps), two DAC channels, two operational amplifiers, and two comparators
- Low-power RTC, multiple timers (including motor control and low-power timers)
- Extensive range of communication interfaces (USB OTG, I2C, SPI, USART, UART, CAN, SDMMC)
- Up to 24 capacitive sensing channels and advanced graphics features (Chrom-ART Accelerator, MIPI DSI Host controller)
- Multiple power-saving modes and independent power supplies
- Support for touchkey, linear, and rotary touch sensors
Applications
The STM32L4R7VIT6 is suitable for a wide range of applications requiring low power consumption and high performance. These include:
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Consumer electronics and appliances
- Automotive systems and telematics
- IoT and smart home devices
- Wearable technology and fitness trackers
Q & A
- What is the maximum clock frequency of the STM32L4R7VIT6?
The maximum clock frequency is 120 MHz.
- How much Flash and SRAM memory does the STM32L4R7VIT6 have?
The device has 2 Mbytes of Flash memory and 640 Kbytes of SRAM.
- What is the resolution of the ADC in the STM32L4R7VIT6?
The ADC resolution is 12-bit, with the option for up to 16-bit with hardware oversampling.
- Does the STM32L4R7VIT6 support USB?
Yes, it supports USB OTG 2.0 full-speed.
- What are the power supply requirements for the STM32L4R7VIT6?
The device operates from a 1.71 to 3.6 V power supply.
- What is the temperature range for the STM32L4R7VIT6?
The device operates in the -40 to +85 °C (or +125 °C) temperature range.
- Does the STM32L4R7VIT6 have any power-saving modes?
Yes, it offers multiple power-saving modes including VBAT mode, Shutdown mode, Standby mode, and Stop mode.
- What communication interfaces are available on the STM32L4R7VIT6?
The device features USB OTG, I2C, SPI, USART, UART, CAN, and SDMMC interfaces.
- Can the STM32L4R7VIT6 be used for touch sensing applications?
Yes, it supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What is the package type for the STM32L4R7VIT6?
The device is available in an LQFP 100 14x14x1.4 mm package.
