AT91SAM9XE512-CU

The AT91SAM9XE512-CU is a single-core, 32-bit microprocessor based on the ARM926EJ-S core running at 180 MHz, designed for embedded and industrial applications. It combines a high-performance ARM926 architecture with integrated on-chip memories, rich peripheral interfaces and a system controller to simplify complex embedded system designs.

Targeted at industrial embedded systems, human-machine interfaces and networked devices, the device delivers integrated connectivity and memory resources that reduce board-level complexity while supporting robust operation across an extended temperature range.

Key Features

• Core and Performance ARM926EJ-S core with DSP instruction extensions and ARM Jazelle technology, featuring 8 KB data cache, 16 KB instruction cache and a write buffer for responsive code execution at 180 MHz (200 MIPS quoted in the series documentation).
• Integrated Flash and SRAM On-chip high-speed flash (512 Kbytes for the XE512 variant) and a 32 Kbyte internal SRAM provide fast single-cycle access at maximum matrix speed and reduce external memory requirements.
• Enhanced Embedded Flash Controller (EEFC) 128-bit wide flash interface with fast read times and page-program/erase characteristics plus page lock and security bit features for reliable on-board non-volatile storage management.
• External Memory and Storage Support External Bus Interface (EBI) supports SDRAM, static memories, ECC-enabled NAND Flash and CompactFlash, enabling flexible system-level storage and memory expansion.
• USB 2.0 and DPRAM USB 2.0 Full Speed device port with on-chip transceiver and a 2,688‑byte configurable integrated DPRAM; the 217-ball LFBGA package provides dual host port capability.
• Ethernet MAC Integrated 10/100 Base-T Ethernet MAC with MII or reduced MII options, 128-byte FIFOs and dedicated DMA channels for efficient network data transfer.
• Image Sensor Interface ITU-R BT.601/656 compatible external interface with programmable frame capture and a 12-bit data path for camera/sensor integration and preview/scaling support.
• System Controller and Timers Comprehensive system control including reset and shutdown controllers, power management controller, advanced interrupt controller, watchdog and real-time timers for reliable platform operation.
• Clock and Power Management Multiple clock sources and PLL options with software-programmable power optimization modes to support dynamic power and performance tuning.
• Package and Temperature Supplied in a 217-LFBGA (15 × 15 mm) surface-mount package and specified for industrial operation from −40 °C to 85 °C.

Typical Applications

• Industrial Control Systems — Use the device’s industrial-grade temperature range, integrated Ethernet and robust system controller to manage sensors, actuators and networked control functions.
• Human-Machine Interfaces (HMI) — LCD and touchscreen controller support combined with onboard memory and USB connectivity enables responsive graphical interfaces and peripheral integration.
• Embedded Networking Devices — Integrated 10/100 Ethernet MAC and USB 2.0 host/device capability make it suitable for networked gateways, routers and connected instrumentation.
• Imaging and Vision Modules — The Image Sensor Interface with frame capture and preview/scaler support suits camera-based inspection, vision preprocessing and sensor interfacing tasks.
• Data Logging and Storage Appliances — External bus support for NAND and CompactFlash alongside ample on-chip flash enables compact data acquisition and local storage designs.

Unique Advantages

• Highly integrated memory subsystem: On-chip flash and SRAM reduce external component count and simplify board design for space-constrained embedded systems.
• Balanced compute and I/O: ARM926EJ-S core with caches plus Ethernet, USB and image interfaces provide the right mix of processing and connectivity for multimedia and networking applications.
• Industrial-ready operation: Specified −40 °C to 85 °C and supplied in a compact 217-LFBGA package for reliable deployment in industrial environments.
• Flexible external memory support: EBI compatibility with SDRAM, NAND and CompactFlash enables scalable storage and memory architectures.
• Embedded flash management: Enhanced Embedded Flash Controller and wide bus access deliver efficient on-chip code and data storage operations with page lock and security features.
• System-level integration: Built-in reset, power and interrupt management plus multiple timers and debug support streamline firmware development and system bring-up.

Why Choose AT91SAM9XE512-CU?

The AT91SAM9XE512-CU positions itself as a versatile industrial embedded MPU that combines a proven ARM926EJ-S core with significant on-chip memory, peripheral richness and system management features. Its integrated Ethernet, dual USB host capability in the 217-LFBGA package, image sensor interface and external memory flexibility make it suitable for designs that require a compact, connected and capable processing node.

Manufactured by Microchip Technology and targeted at embedded and industrial applications, this device is appropriate for engineers seeking a single-chip solution that balances compute performance, IO options and onboard storage while supporting extended-temperature operation for long-term, reliable deployment.

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