STM32L4R9ZIJ6

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The STM32L4R9ZIJ6 is a microcontroller from STMicroelectronics’ STM32L4 ultra-low-power series. It forms part of the 32-bit Arm Cortex-M4 platform that features advanced peripherals including an Ethernet controller, USB OTG FS and crystal-less USB, CRC acceleration, advanced audio and LCD control. This device is used for applications that require low power consumption and longevity. Its 256KB of Flash memory, 192KB of RAM and its low power consumption make it ideal for a variety of applications.

Applications of the STM32L4R9ZIJ6 include:

• Internet of Things (IoT) devices
• Utility meters
• Wearable devices
• Advanced automotive functions
• Security systems
• Medical diagnostics
• Home appliances
• Robotics

The most important features of the STM32L4R9ZIJ6 are:

• A 32-bit Arm Cortex-M4 core with a frequency of up to 115MHz, providing high performance.
• An extended voltage range of 1.7 to 3.6-volts.
• USB OTG FS and crystal-less USB.
• Ethernet controller.
• Motor control subsystem.
• Application tracing.
• Advanced LCD control.
• Operating temperatures from -40°C to 105°C.
• Low-power timer.
• A 7 to 16MHz crystal oscillator.
• Messaging and streaming interfaces.

The working principle of the STM32L4R9ZIJ6 is straightforward and for the most part, it depends on the software running on the processor. The processor first receives instructions, then decodes and executes them. The processor has multiple instruction sets which can be used to perform various operations, such as arithmetic, logic and data manipulation, as well as control operations such as jumping to a specific address in the program.

As a part of the STM32L4 ultra-low-power series, the STM32L4R9ZIJ6 is optimised for low power. The device has a standby mode that can reduce the average power consumption to below 1µA. The embedded flash memory also supports high-speed utility functions, such as read flexibility and redundancy, to reduce long-term system costs.

The STM32L4R9ZIJ6 microcontroller is a powerful tool for embedded systems. It is optimised for low power, providing longer run times for battery powered applications, and is equipped with advanced peripherals for Ethernet, USB, LCD and audio control. Its 256KB of Flash memory, 192KB of RAM and 1.7 to 3.6 volts operating voltage make it suitable for a variety of applications.

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