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Introduction

The STM32L4S7VIT6 is a member of the STM32L4 microcontroller family from STMicroelectronics. It is an ultra-low-power ARM® Cortex®-M4 based microcontroller with integrated 96Kbytes of RAM, on-chip Flash memory up to 2 Mbytes, DSP instructions, and a wide variety of peripherals. This microcontroller is suitable for cost-sensitive and power-conscious applications such as those in the industrial, medical and consumer markets.

Application Field

The STM32L4S7VIT6 is a highly integrated microcontroller and is suitable for a wide range of applications. It has been designed to be used in industrial, medical and consumer markets. It is ideal for applications that need low-power operation, as it can operate on very low power, up to 1 mA. It also has a number of on-chip peripherals, such as GPIO, UART, ADC and DAC, and can be easily integrated into system designs. It can be used for controlling motors, sensors and actuators, system diagnostics, signal processing, data acquisition and communication.

Working Principle

The STM32L4S7VIT6 is based on the ARM Cortex-M4 processor core. It is 32-bit and is clocked at up to 120MHz. It supports multiple forms of instruction set architectures, including Thumb-1 and Thumb-2 instruction sets. The processor core includes a 128-bit wide single-cycle multiply, a hardware divide unit and four ARM Cortex-M4 NVIC interrupt controllers. The ARM Cortex-M4 processor also includes built-in support for low-power status changes.

The STM32L4S7VIT6 also includes up to 96Kbytes of RAM and up to 2 Mbytes of on-chip Flash memory. The Flash memory is organized into 16Kbytes, 64Kbytes and 128Kbytes sectors for the various kind of applications. The on-chip RAM is also organized as a single 16Kbytes block. The processor can access the Flash and RAM via dedicated instruction and data bus.

The STM32L4S7VIT6 has a variety of on-chip peripherals, such as I2C, UART, SPI, USB and CAN interfaces, GPIO, ADC and DAC, PGA and timers. The processor can access these peripherals via dedicated internal buses and they each have their own instruction and data bus. For example, the UART and SPI are connected via a single internal bus and the GPIO, ADC and DAC also have their own dedicated bus.

The STM32L4S7VIT6 also includes a variety of system control features such as sleep and power-down modes, clock gating and IDLE mode support. It includes a low-power internal oscillator, which can be used for the low-power implementation of the core and the peripherals. It also includes an on-chip debug module for debugging applications. It also has an embedded bootloader which allows the microcontroller to be programmed and debugged without external hardware.

Conclusion

The STM32L4S7VIT6 is an ultra-low-power ARM Cortex-M4 based microcontroller suitable for cost-sensitive and power-conscious applications. It is well-suited for applications that require low-power operation and has a variety of on-chip peripherals. Its wide range of system control features, integrated RAM, Flash and oscillator make it an ideal choice for embedded systems. Its support for low-power status changes, on-chip debug module and embedded bootloader also make it an attractive solution for embedded system applications.

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