Overview
The STM32L4R5AII6P is a member of the STM32L4+ Series of ultra-low-power microcontrollers from STMicroelectronics. This device is based on the high-performance Arm® 32-bit Cortex®-M4 CPU with a single-precision floating-point unit (FPU) and adaptive real-time accelerator (ART Accelerator), enabling 0-wait-state execution from Flash memory up to 120 MHz. The microcontroller is designed for low-power applications, featuring advanced power-saving modes and a comprehensive set of peripherals and interfaces.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU, ART Accelerator |
| Frequency | Up to 120 MHz |
| Power Supply | 1.71 V to 3.6 V (LDO mode), 1.05 to 1.32 V (SMPS mode) |
| Temperature Range | -40 °C to 85 °C / 125 °C |
| Flash Memory | 2 Mbytes, 2 banks read-while-write |
| SRAM | 640 Kbytes, including 64 Kbytes with hardware parity check |
| External Memory Interface | Supports SRAM, PSRAM, NOR, NAND, and FRAM memories |
| Timers | 16x 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, 2 x SAIs, 4 x I2C, 3 x SPI, 6 x USARTs, CAN (2.0B Active), SDMMC |
| Package | UFBGA 169 (7x7x0.6 P 0.5 mm) |
Key Features
- Ultra-low-power with FlexPowerControl and multiple power-saving modes (VBAT, Shutdown, Standby, Stop 2 with RTC)
- Batch acquisition mode (BAM) and brownout reset (BOR) in all modes except shutdown
- Advanced graphics features including Chrom-ART Accelerator (DMA2D) and Chrom-GRC (GFXMMU)
- MIPI® DSI Host controller with two DSI lanes running at up to 500 Mbits/s each
- LCD-TFT controller and up to 24 capacitive sensing channels
- Rich analog peripherals with independent supply inputs for ADC, DAC, OPAMPs, and comparators
- 14-channel DMA controller, true random number generator, and CRC calculation unit
- Development support with serial wire debug (SWD), JTAG, and Embedded Trace Macrocell (ETM)
Applications
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Consumer electronics such as smart home devices and wearables
- Automotive systems, including infotainment and driver assistance
- IoT devices and wireless sensor networks
- Energy metering and smart grid applications
Q & A
- What is the core architecture of the STM32L4R5AII6P?
The STM32L4R5AII6P is based on the Arm® 32-bit Cortex®-M4 CPU with a single-precision floating-point unit (FPU) and adaptive real-time accelerator (ART Accelerator).
- What is the maximum operating frequency of the STM32L4R5AII6P?
The maximum operating frequency is up to 120 MHz.
- What are the power supply ranges for the STM32L4R5AII6P?
The device operates from 1.71 V to 3.6 V (LDO mode) and 1.05 to 1.32 V (SMPS mode).
- What are the key power-saving modes of the STM32L4R5AII6P?
The device features VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode with RTC.
- What types of memory does the STM32L4R5AII6P have?
The device includes 2 Mbytes of Flash memory and 640 Kbytes of SRAM.
- What are the advanced graphics features of the STM32L4R5AII6P?
The device features a Chrom-ART Accelerator (DMA2D) and Chrom-GRC (GFXMMU) for enhanced graphic content creation.
- What communication interfaces are available on the STM32L4R5AII6P?
The device includes USB OTG 2.0, SAIs, I2C, SPI, USARTs, CAN (2.0B Active), and SDMMC interfaces.
- What is the package type of the STM32L4R5AII6P?
The device is available in a UFBGA 169 (7x7x0.6 P 0.5 mm) package.
- What are the temperature ranges for the STM32L4R5AII6P?
The device operates in the -40 °C to 85 °C / 125 °C temperature range.
- Does the STM32L4R5AII6P support external memory interfaces?
Yes, it supports SRAM, PSRAM, NOR, NAND, and FRAM memories through its external memory interface.
- What development tools are available for the STM32L4R5AII6P?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell (ETM) for development.
