AT91SAM9XE512-QU

The AT91SAM9XE512-QU is a single-core 32-bit microprocessor based on the ARM926EJ-S core running at 180 MHz, supplied by Microchip Technology as part of the SAM9X series. Designed for embedded applications, the device integrates on-chip flash and SRAM, a memory management unit and a rich set of peripheral interfaces to support networking, imaging and human-machine interface implementations.

With industrial-grade operating range and a 208-pin PQFP (28×28) surface-mount package, the part targets embedded designs that require integrated connectivity, storage and real-time capture capabilities in a compact footprint.

Key Features

• Core and Performance  ARM926EJ-S 32-bit core at 180 MHz with support for ARM Thumb and DSP instruction extensions; documented performance metric of 200 MIPS at 180 MHz and integrated MMU, instruction and data caches (16 KB instruction cache, 8 KB data cache) and write buffer.
• Embedded Memory  On-chip non-volatile and volatile memories include 512 Kbytes internal high-speed flash (for the AT91SAM9XE512 variant), a 32 Kbyte internal ROM and 32 Kbyte internal SRAM with single-cycle access at maximum matrix speed. Flash organized in 1024 pages of 512 bytes with read and programming characteristics documented (fast read 45 ns; page program 4 ms; full erase 10 ms; 10,000 write cycles).
• External Memory and Bus Matrix  External Bus Interface (EBI) supports SDRAM, static memories, ECC-enabled NAND Flash and CompactFlash. Six-layer 32-bit bus matrix enables concurrent master accesses and system remapping.
• USB and Storage Interfaces  USB 2.0 full-speed (12 Mbps) device port with on-chip transceiver and 2,688-byte configurable DPRAM. The 208-pin PQFP variant includes a single USB host port with integrated FIFOs and dedicated DMA channels.
• Ethernet and Networking  Integrated 10/100 Base-T Ethernet MAC with MII or RMII interface options, 128-byte FIFOs and dedicated DMA channels for transmit and receive.
• Image Sensor and Display Support  Image Sensor Interface compatible with ITU‑R BT.601/656, programmable frame capture rate, 12-bit data interface for high-sensitivity sensors, SAV/EAV synchronization and a preview path with scaler. Display controller support includes LCD and touchscreen interfaces.
• System Controller and Timers  Comprehensive system controller features including reset and shutdown controllers, clock generator with PLL options, power management controller, advanced interrupt controller (vectored, eight-level priority), debug unit with EmbeddedICE and Debug Communication Channel support, periodic interval timer, watchdog and real-time timer.
• Enhanced Embedded Flash Controller (EEFC)  128-bit wide flash interface to improve read and execution performance in ARM and Thumb modes, plus flash security bits and page lock capabilities.
• Package and Environmental  208-PQFP (28×28) surface-mount package; industrial-grade operating temperature range from −40 °C to 85 °C.

Typical Applications

• Industrial HMI and Touch Panels  On-chip LCD and touchscreen controller support combined with integrated flash and SRAM make the device suitable for user-interface controllers and panel displays in industrial environments.
• Networked Embedded Controllers  The integrated 10/100 Ethernet MAC and USB 2.0 interfaces enable connected embedded systems requiring wired networking and peripheral connectivity.
• Imaging and Machine Vision  Image Sensor Interface with 12-bit data support, programmable frame capture and scaler preview path make the part appropriate for camera capture, preview and processing front ends.
• Storage and Peripheral Host Devices  EBI support for NAND and CompactFlash plus USB host/device capability allow implementation of local storage, data logging and peripheral host functions.

Unique Advantages

• Integrated Memory Subsystem: On-chip 512 KB flash, 32 KB SRAM and 32 KB ROM reduce the need for external code storage and simplify BOM for many embedded applications.
• Broad Peripheral Integration: Ethernet MAC, USB host/device, image sensor interface and display controllers are integrated, enabling fewer external components and streamlined board designs.
• Deterministic 32-bit Processing: ARM926EJ-S core with caches, MMU and documented 200 MIPS at 180 MHz provides a predictable execution environment for real-time and control tasks.
• Robust System Control: Built-in reset, power management, advanced interrupt controller and debug support facilitate reliable system operation and development-time visibility.
• Industrial Temperature Range: Rated for −40 °C to 85 °C, supporting deployment in industrial temperature environments.
• Standard Surface-Mount Package: 208-PQFP (28×28) package offers a compact, manufacturable footprint for surface-mount assembly.

Why Choose AT91SAM9XE512-QU?

The AT91SAM9XE512-QU delivers a balanced combination of integrated memory, peripheral connectivity and ARM926EJ-S processing in a single-chip solution targeted at embedded designs. Its mix of on-chip flash and SRAM, USB and Ethernet interfaces, and dedicated image capture functionality makes it suitable for compact, connected systems where integration and deterministic processing matter.

As part of the SAM9X family from Microchip Technology, this variant (AT91SAM9XE512) provides a clear memory scaling point within the series and is positioned for customers building industrial-grade embedded products that require on-chip storage, peripheral integration and a standard 208-PQFP surface-mount package.

Request a quote or submit your procurement inquiry to get pricing and availability for the AT91SAM9XE512-QU for your next embedded design.