AT91SAM9X35-CU-999

The AT91SAM9X35-CU-999 is a 32-bit embedded microprocessor IC based on the ARM926EJ-S core running at up to 400 MHz. It integrates a high-bandwidth architecture and an extensive peripheral set targeted for industrial applications that require refined user interfaces and high-speed communication.

Designed for industrial-grade systems, the device combines display and touchscreen support, multiple memory controller options, high-speed connectivity and robust I/O to enable complex HMI, networking and data-handling designs.

Key Features

• Core  ARM926EJ-S 32-bit processor running at up to 400 MHz with instruction and data caches and a Memory Management Unit.
• Memory and External Bus  Internal boot ROM (64 Kbytes) and internal SRAM (32 Kbytes); external memory controllers for DDR2, LPDDR, DDR, SDR and SRAM; 32-bit External Bus Interface supporting 4-bank and 8-bank DDR2/LPDDR/SDR and static memories.
• NAND Flash Support  Integrated MLC/SLC 8-bit NAND controller with programmable multi-bit ECC up to 24 bits.
• Display and Touch  LCD controller with 4-layer overlay and 2D acceleration (alpha-blending, scaling, rotation, color conversion) plus a 10-bit ADC that supports 4-wire or 5-wire resistive touchscreens.
• Connectivity  10/100 Mbps Ethernet MAC and two CAN interfaces (2.0A/B compatible) for industrial networking and fieldbus integration.
• USB and Storage  USB Device High Speed, USB Host High Speed and USB Host Full Speed; dual high-speed SDCard/SDIO/MMC interfaces for removable storage.
• Peripheral Interfaces  Multiple serial interfaces including USARTs, SPIs, I2S and TWI for broad sensor and peripheral support.
• DMA and Bus Matrix  High-bandwidth multi-port AHB bus matrix with dual DMAC (2×8 central DMA channels) and dedicated DMAs for high-speed peripherals to minimize processor overhead.
• System and Power  Clock generator and power management controller with shutdown controller, low-power oscillators and battery backup registers for power optimization and low-power operation.
• Package and Environmental  217-ball LFBGA (15×15 mm, 0.8 mm ball pitch) surface-mount package; industrial temperature grade from −40 °C to 85 °C; RoHS compliant.

Typical Applications

• Industrial HMI and Touch Panels  Integrated LCD controller with touchscreen ADC and 2D acceleration supports responsive graphical user interfaces and advanced display features.
• Industrial Networking and Gateways  10/100 Ethernet and dual CAN interfaces provide the connectivity required for industrial communication, protocol bridging and edge networking.
• Embedded Storage and Data Logging  NAND controller with ECC and dual SDCard interfaces enable reliable local storage and high-capacity data logging solutions.
• USB-enabled Devices  High-speed USB device and host support allow external peripheral connectivity and mass-storage device integration.

Unique Advantages

• High-performance Processing: The ARM926EJ-S core at up to 400 MHz provides the processing throughput needed for graphics, networking and protocol handling in embedded systems.
• Comprehensive Memory Support: On-chip boot ROM and SRAM plus controllers for DDR/DDR2/LPDDR/SDR and NAND with up to 24-bit ECC simplify memory system design for varied performance and storage needs.
• Rich I/O and Connectivity: Integrated Ethernet, CAN, multiple USB modes and numerous serial interfaces reduce external components and streamline board-level integration.
• Integrated Display Pipeline: LCD controller with layering, alpha-blending and 2D acceleration accelerates UI rendering without excessive CPU load.
• Designed for Industrial Use: Industrial temperature rating (−40 °C to 85 °C) and RoHS compliance support deployment in demanding environments.
• Efficient Data Movement: Multi-layer AHB bus matrix and dual DMA controllers enable high-bandwidth peripheral transfers with minimal CPU intervention.

Why Choose AT91SAM9X35-CU-999?

The AT91SAM9X35-CU-999 pairs a 400 MHz ARM926EJ-S core with a high-bandwidth system architecture and a broad peripheral set to address industrial designs that require refined user interfaces, reliable storage and robust network connectivity. Its integrated display engine, memory controllers and connectivity options reduce system complexity while supporting demanding workloads.

Backed by Microchip Technology and offered in a 217-ball LFBGA package with industrial temperature rating and RoHS compliance, this MPU is positioned for embedded applications where performance, integration and long-term robustness are key design priorities.

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