AT91SAM7XC128-AU-999

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The AT91SAM7XC128-AU-999 is an embedded microcontroller that is designed to meet the requirements of industrial and commercial applications. It is a 32-bit RISC processor based on the ARM Cortex-M3 core along with a high-density of embedded flash memory. This microcontroller is suitable for applications that require complex computation and communication.

The AT91SAM7XC128-AU-999 features two clock frequency domains, a high speed 120MHz and a low speed 8MHz. The integrated peripherals include a high resolution 12-bit Analog-to-Digital Converter, dual-mode USB 2.0 interface and three-channel Serial Peripheral Interface(SPI). It also supports four channel UART, three channel I2C, single channel CAN, one-slave configuration of High-Speed Universal Serial Bus (HUSI), one configuration of High-Speed Serial Peripheral Interface (HSI) and a 2-channel LCD Controller.

The key features of the AT91SAM7XC128-AU-999 are:

• 32-bit RISC Cortex-M3 microcontroller
• Maximum operating frequency of 120 MHz
• Integrated embedded flash memory up to 256 Kbytes
• Dual-mode USB 2.0 interface
• Three-channel SPI
• Four UARTs
• Three I2Cs
• Single CAN
• One slave configuration of universal serial bus (HUSI)
• One configuration of High-Speed Serial Peripheral Interface (HSI)
• Two-channel LCD controller
• CPU functions supported by Thumb-2 instruction set
• Memory Protection Unit (MPU)
• Numerous power management modes
• On-chip debug unit with 4-pin JTAG interface

The AT91SAM7XC128-AU-999 operating voltage is from 1.8V to 3.3V, and consumes an average active power of just 170mW when operating at 120MHz. This microcontroller is offered in several packages which include LQFP128, LQFP144, and the ball-grid-array (BGA) packages.

The AT91SAM7XC128-AU-999 is well suited for numerous applications, including industrial automation, building automation and control, home automation and control, consumer electronics, automotive, medical and banking applications.

The working principle of the AT91SAM7XC128-AU-999 microcontroller is centered on its ARM® Cortex™ core that allows the microcontroller to operate efficiently at high speeds. The ARM Cortex-M3 core is based on the Harvard architecture, where the instruction and data buses are distinct from memory access, allowing the pipeline to execute instructions from Flash or SRAM even when it is refresh the instruction cache. The ARM Cortex-M3 uses four stages of pipelining, allowing for a maximum clock rate of 240MHz.

The AT91SAM7XC128-AU-999 utilizes Thumb-2 instruction set for higher code densities compared to traditional ARM instructions. Additionally, the microcontroller has a Memory Protection Unit (MPU) which allows for protection from illegal memory access, as well as power saving features like the multiple options of power saving modes, automatic clock gating, and frequency domain switching.

The AT91SAM7XC128-AU-999 is a powerful, reliable and highly integrated microcontroller that is perfect for embedded applications. With the features of high speeds and power saving, the AT91SAM7XC128-AU-999 microcontroller gives engineers and system designers greater freedom to create innovative solutions for their various embedded applications.

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