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The AT91SAM9XE256B-CU is a 32-bit ARM926EJ-S microprocessor (MPU) developed by Microchip Technology, featuring a 217-LFBGA package, and is primarily targeted at applications such as industrial control, embedded network devices, and human-machine interfaces (HMI). The chip integrates 256KB of Flash memory, an SDRAM/SRAM controller, and a rich set of peripheral interfaces, making it suitable for high-performance embedded system designs.

AT91SAM9XE256B-CU Core Features

Processor Architecture

ARM926EJ-S 32-bit RISC core, operating at 180MHz, with Java acceleration support (Jazelle technology).

16KB instruction cache (I-Cache) + 16KB data cache (D-Cache) to enhance code execution efficiency.

Storage Resources  

256KB on-chip Flash (supports ECC error correction).  

56KB SRAM (including 32KB high-speed cache).  

SDRAM controller (supports 16/32-bit bus).

Communication Interfaces

10/100Mbps Ethernet MAC (supports MII/RMII).

3× USB 2.0 Host/Device (full-speed/high-speed).

Standard interfaces such as UART, SPI, I²C, and SSC (synchronous serial).

Display and Control

LCD controller (supports TFT screens with a maximum resolution of 1024×768).

Touchscreen interface (4/5-wire resistive).

Power and Reliability

1.8V/2.5V/3.3V multi-voltage domains to accommodate different peripheral device requirements.

Industrial-grade temperature range (-40°C to +85°C), compliant with AEC-Q100 standards (for certain derivative models).

Watchdog (WDT) and undervoltage detection (BOD) enhance system stability.

AT91SAM9XE256B-CU Typical Applications

Industrial HMI panels (PLC control terminals).

Embedded gateways (supporting Ethernet/USB communication).

Medical devices (portable monitors).

Automotive infotainment systems (requires automotive-grade models).

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.