Overview
The STM32L4R7AII6 is a member of the STM32L476xx family of microcontrollers produced by STMicroelectronics. This ultra-low-power Arm® Cortex®-M4 32-bit MCU is designed for applications requiring high performance, low power consumption, and advanced peripherals. The device integrates a wide range of features, including a high-performance core, extensive memory, and a rich set of communication and analog interfaces.
Key Specifications
| Specification | Value |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU |
| Maximum Clock Frequency | 80 MHz |
| Program Memory Size | Up to 1 MB flash |
| Data Bus Width | 32 bit |
| SRAM | Up to 128 KB |
| ADC Resolution | 12 bit, up to 16 bit with hardware oversampling |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to 85/105/125 °C |
| Low Power Modes | 300 nA in VBAT mode, 30 nA Shutdown mode, 120 nA Standby mode, 1.1 µA Stop 2 mode |
| Communication Interfaces | USB OTG 2.0, 2x SAIs, 3x I2C, 5x USARTs, 1x LPUART, 3x SPIs, CAN, SDMMC |
Key Features
- Ultra-low-power with FlexPowerControl, including multiple low-power modes such as VBAT, Shutdown, Standby, and Stop 2 modes.
- Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™), and up to 100 DMIPS performance.
- Rich analog peripherals including 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, and 2x ultra-low-power comparators.
- Extensive communication interfaces: USB OTG 2.0, serial audio interfaces (SAIs), I2C, USARTs, LPUART, SPIs, CAN, and SDMMC.
- Support for capacitive sensing with up to 24 touchkey, linear, and rotary touch sensor channels.
- Advanced timer and watchdog capabilities, including 16x timers and 2x watchdogs.
- Internal voltage reference, battery voltage monitoring, and digital filter for Sigma-Delta modulators.
- Development support with serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
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 infotainment and driver assistance.
- IoT devices and smart sensors.
- Energy metering and monitoring systems.
Q & A
- What is the core architecture of the STM32L4R7AII6?
The STM32L4R7AII6 is based on the Arm® 32-bit Cortex®-M4 CPU with FPU. - What is the maximum clock frequency of the STM32L4R7AII6?
The maximum clock frequency is 80 MHz. - What are the power supply voltage ranges for the STM32L4R7AII6?
The power supply voltage ranges from 1.71 V to 3.6 V. - What are the low power modes available in the STM32L4R7AII6?
The device supports multiple low power modes including VBAT, Shutdown, Standby, and Stop 2 modes. - What types of communication interfaces does the STM32L4R7AII6 support?
The device supports USB OTG 2.0, SAIs, I2C, USARTs, LPUART, SPIs, CAN, and SDMMC. - Does the STM32L4R7AII6 support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors. - What kind of timers and watchdogs are available on the STM32L4R7AII6?
The device includes 16x timers and 2x watchdogs. - Is the STM32L4R7AII6 suitable for industrial automation?
Yes, it is suitable for industrial automation and control systems due to its high performance and low power consumption. - What development tools are supported by the STM32L4R7AII6?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™. - Is the STM32L4R7AII6 ECOPACK2 compliant?
Yes, all packages of the STM32L4R7AII6 are ECOPACK2 compliant.
