Overview
The STM32L4S5QII6 is a member of the STM32L4+ Series of ultra-low-power microcontrollers from STMicroelectronics. It is based on the high-performance Arm® Cortex®-M4 32-bit RISC core, which includes a single-precision floating-point unit (FPU) and supports all Arm® single-precision data-processing instructions and DSP instructions. This MCU operates at a frequency of up to 120 MHz and features an adaptive real-time accelerator (ART Accelerator) allowing 0-wait-state execution from Flash memory.
The device is designed for low-power applications, offering various power-saving modes such as Shutdown, Standby, and Stop modes, with power consumption as low as 33 nA in Shutdown mode and 2.8 µA in Stop 2 mode with RTC. It also supports independent power supplies for various peripherals.
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 |
| Temperature Range | -40 °C to 85/125 °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 full-speed, 4 x I2C, 3 x SPI, 3 x USART, CAN (2.0B Active), SDMMC |
| Encryption | AES (128/256-bit key), HASH (SHA-256) |
| Package | UFBGA 132 7x7x0.6 P 0.5 mm |
Key Features
- Ultra-low-power with FlexPowerControl
- Batch acquisition mode (BAM)
- Advanced graphics features: Chrom-ART Accelerator (DMA2D), Chrom-GRC (GFXMMU)
- MIPI® DSI Host controller with two DSI lanes running at up to 500 Mbit/s each
- LCD-TFT controller
- Up to 24 capacitive sensing channels
- 14-channel DMA controller
- True random number generator, CRC calculation unit, 96-bit unique ID
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™ (ETM)
Applications
The STM32L4S5QII6 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 such as smart home devices and wearables
- Automotive systems, especially those requiring low power and high reliability
- IoT devices and smart sensors
Q & A
- What is the core architecture of the STM32L4S5QII6?
The STM32L4S5QII6 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 STM32L4S5QII6?
The maximum operating frequency is up to 120 MHz.
- What are the power supply and temperature ranges for the STM32L4S5QII6?
The power supply range is 1.71 V to 3.6 V, and the temperature range is -40 °C to 85/125 °C.
- What types of memory does the STM32L4S5QII6 have?
The device has 2 Mbytes of Flash memory and 640 Kbytes of SRAM.
- What are the key analog peripherals of the STM32L4S5QII6?
The device features a 12-bit ADC (5 Msps), two 12-bit DACs, two operational amplifiers, and two ultra-low-power comparators.
- What communication interfaces are available on the STM32L4S5QII6?
The device includes USB OTG 2.0 full-speed, four I2C interfaces, three SPI interfaces, three USART interfaces, CAN (2.0B Active), and SDMMC.
- Does the STM32L4S5QII6 support encryption?
Yes, it supports AES (128/256-bit key) and HASH (SHA-256) encryption.
- What is the package type of the STM32L4S5QII6?
The package type is UFBGA 132 7x7x0.6 P 0.5 mm.
- What are the power-saving modes available on the STM32L4S5QII6?
The device supports Shutdown, Standby, and Stop modes, among others, with very low power consumption.
- Does the STM32L4S5QII6 support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels.
