Overview
The STM32L4S9AII6 is a high-performance, ultra-low-power microcontroller from STMicroelectronics, based on the Arm® Cortex®-M4 32-bit CPU with a floating-point unit (FPU). This microcontroller is part of the STM32L4 series, known for its energy efficiency and advanced features. It is designed to meet the needs of various applications requiring high processing power, low power consumption, and a rich set of peripherals.
Key Specifications
| Specification | Value |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU |
| Maximum Clock Frequency | 120 MHz |
| Performance Benchmark | 150 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1) |
| Flash Memory | Up to 2 MB |
| SRAM | 640 KB |
| ADC Resolution | 2 x 12-bit, up to 16-bit with hardware oversampling |
| Number of I/Os | Up to 136 fast I/Os |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to 85/125 °C |
| Low-Power Modes | Shutdown, Standby, Stop 2 with RTC, etc. |
Key Features
- Ultra-low-power with FlexPowerControl: Features like batch acquisition mode (BAM), low power modes (Shutdown, Standby, Stop 2 with RTC), and a power supply range of 1.71 V to 3.6 V.
- Advanced Graphics and Display: Includes Chrom-ART Accelerator (DMA2D) for enhanced graphic content creation, MIPI® DSI Host controller, and LCD-TFT controller.
- Rich Analog Peripherals: 12-bit ADC, 12-bit DAC, operational amplifiers, ultra-low-power comparators, and digital filters for sigma-delta modulators.
- Communication Interfaces: USB OTG 2.0 full-speed, serial audio interfaces (SAIs), I2C, USARTs, SPIs, CAN, and SDMMC.
- Security and Encryption: AES (128/256-bit key) and HASH (SHA-256) hardware accelerators, true random number generator, and CRC calculation unit.
- Development Support: Serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ (ETM).
Applications
The STM32L4S9AII6 is suitable for a wide range of applications due to its high performance, low power consumption, and rich set of peripherals. Some key applications include:
- Industrial Automation: For control and monitoring systems that require high processing power and low energy consumption.
- Medical Devices: For devices that need advanced graphics, secure data handling, and low power consumption.
- Consumer Electronics: For products like smart home devices, wearables, and other IoT applications.
- Automotive Systems: For in-vehicle systems that require robust performance and low power consumption.
Q & A
- What is the core architecture of the STM32L4S9AII6?
The STM32L4S9AII6 is based on the Arm® 32-bit Cortex®-M4 CPU with a floating-point unit (FPU).
- What is the maximum clock frequency of the STM32L4S9AII6?
The maximum clock frequency is 120 MHz.
- What are the power supply and temperature ranges for the STM32L4S9AII6?
The power supply range is 1.71 V to 3.6 V, and the temperature range is -40 °C to 85/125 °C.
- What are the key low-power modes of the STM32L4S9AII6?
The key low-power modes include Shutdown, Standby, Stop 2 with RTC, and others).
- What advanced graphics features does the STM32L4S9AII6 support?
The STM32L4S9AII6 supports Chrom-ART Accelerator (DMA2D), MIPI® DSI Host controller, and LCD-TFT controller).
- What communication interfaces are available on the STM32L4S9AII6?
The microcontroller includes USB OTG 2.0 full-speed, SAIs, I2C, USARTs, SPIs, CAN, and SDMMC).
- Does the STM32L4S9AII6 have built-in security features?
Yes, it includes AES (128/256-bit key) and HASH (SHA-256) hardware accelerators, a true random number generator, and a CRC calculation unit).
- What development tools and interfaces are supported by the STM32L4S9AII6?
The microcontroller supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ (ETM)).
- What types of memory does the STM32L4S9AII6 have?
The STM32L4S9AII6 has up to 2 MB of Flash memory and 640 KB of SRAM).
- What are some typical applications for the STM32L4S9AII6?
Typical applications include industrial automation, medical devices, consumer electronics, and automotive systems).
