Overview
The STM32L4R5AII6 is a member of the STM32L4+ Series of ultra-low-power microcontrollers from STMicroelectronics. This device is 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) and supports all Arm® single-precision data-processing instructions and DSP instructions. It also features a memory protection unit (MPU) for enhanced security.
The STM32L4R5AII6 is designed for low-power applications, offering various power-saving modes and a wide range of peripherals and interfaces. It is suitable for applications requiring high performance, low power consumption, and advanced features.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, up to 120 MHz |
| Memory | 2 Mbytes of Flash memory, 640 Kbytes of SRAM |
| Power Supply | 1.71 V to 3.6 V (internal LDO), 1.05 to 1.32 V (external SMPS) |
| Temperature Range | -40 °C to 85 °C / 125 °C |
| Timers | 2 x 32-bit, 11 x 16-bit, 2 x low-power 16-bit timers |
| Analog Peripherals | 12-bit ADC (5 Msps), 2 x 12-bit DAC, 2 x operational amplifiers, 2 x ultra-low-power comparators |
| Communication Interfaces | USB OTG 2.0, 4 x I2C, 3 x SPI, 6 x USART, CAN (2.0B Active), SDMMC |
| Package | UFBGA 169 7x7x0.6 P 0.5 mm |
| Power Modes | VBAT mode: 305 nA, Shutdown mode: 33 nA, Standby mode: 125 nA, Stop 2 mode with RTC: 2.8 μA |
Key Features
- Ultra-low-power with FlexPowerControl
- Batch acquisition mode (BAM)
- Rich analog peripherals with independent supply
- Advanced graphics features: Chrom-ART Accelerator (DMA2D), MIPI DSI Host controller
- Multiple communication interfaces: USB OTG, I2C, SPI, USART, CAN, SDMMC
- 14-channel DMA controller, true random number generator, CRC calculation unit
- Up to 24 capacitive sensing channels, support for touchkey, linear and rotary touch sensors
- Low-power RTC, multiple timers, and watchdogs
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell (ETM)
Applications
The STM32L4R5AII6 is suitable for a wide range of applications that require high performance and low power consumption, such as:
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Consumer electronics and appliances
- Automotive systems and infotainment
- IoT and smart home devices
- Wearable devices and fitness trackers
Q & A
- What is the core architecture of the STM32L4R5AII6?
The STM32L4R5AII6 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 STM32L4R5AII6?
The maximum operating frequency is up to 120 MHz.
- What are the power supply ranges for the STM32L4R5AII6?
The device operates from 1.71 V to 3.6 V using the internal LDO regulator and from 1.05 to 1.32 V using an external SMPS supply.
- What are the key analog peripherals available on the STM32L4R5AII6?
The device features a 12-bit ADC, two 12-bit DACs, two operational amplifiers, and two ultra-low-power comparators.
- What communication interfaces are supported by the STM32L4R5AII6?
The device supports USB OTG 2.0, four I2C interfaces, three SPI interfaces, six USARTs, CAN (2.0B Active), and SDMMC.
- What are the power-saving modes available on the STM32L4R5AII6?
The device offers several power-saving modes including VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode with RTC.
- What is the temperature range for the STM32L4R5AII6?
The device operates in the temperature range of -40 °C to 85 °C / 125 °C.
- What is the package type for the STM32L4R5AII6?
The device is available in a UFBGA 169 7x7x0.6 P 0.5 mm package.
- Does the STM32L4R5AII6 support capacitive sensing?
Yes, the device supports up to 24 capacitive sensing channels.
- What development tools are available for the STM32L4R5AII6?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell (ETM) for development.
