AT91SAM9261B-CU-999

The AT91SAM9261B-CU-999 is a single-core, 32-bit microprocessor built around the ARM926EJ-S core running at 190 MHz. It targets embedded and industrial applications that require integrated display control, external memory support and high I/O integration.

With an optimized feature set for LCD-based hosts and integrated peripherals including USB and external memory interfaces, this device delivers a balance of processing performance, display capability and system integration for industrial and embedded designs.

Key Features

• Core ARM926EJ-S processor, single 32-bit core running at 190 MHz and capable of 210 MIPS as documented for the series.
• Memory Includes 32 KB internal ROM and 160 KB internal SRAM; SRAM can be configured as a frame buffer to reduce LCD refresh impact on overall performance.
• Caches and Performance 16 KB instruction cache and 16 KB data cache with write buffer to improve instruction and data throughput.
• Display Integrated LCD controller supporting passive and active displays, up to 16M colors (TFT mode) and resolutions up to 2048 × 2048, suitable for graphic-enabled HMIs.
• External Memory & Storage Interfaces External Bus Interface (EBI) supports SDRAM and static memories and includes dedicated interface circuitry for CompactFlash and NAND Flash devices.
• USB USB 2.0 Full Speed support with dual host transceivers and a device port; integrated FIFOs and DMA channels for efficient data transfer.
• System & Power Management On-chip Power Management Controller (PMC) with programmable clocks and PLLs, shutdown controller and clock generator to optimize power and system clocking.
• Debug & Trace EmbeddedICE debug features, a dedicated UART debug channel (DBGU) and Embedded Trace Macrocell (ETM) for real-time trace and development support.
• On-chip Peripherals Bus Matrix handling multiple masters/slaves, advanced interrupt controller, timers (PIT, watchdog, real-time) and multiple PIO controllers for system-level integration.
• Package & Temperature 217-LFBGA (15 × 15 mm) surface-mount package supplied in Tape & Reel; industrial operating temperature range from −40 °C to 85 °C.

Typical Applications

• Graphic-enabled HMIs Integrated LCD controller and configurable SRAM frame buffer make this part suited for human-machine interfaces with color displays.
• Industrial Control Systems Industrial grade temperature range and extensive system peripherals support embedded controllers and operator panels.
• Embedded Host with Local Storage EBI support for SDRAM, NAND Flash and CompactFlash combined with USB host ports enables local data storage and peripheral connectivity.
• Data Acquisition and Logging USB device/host capability and multiple timers/PIOs allow robust interfacing and data transfer for measurement and logging applications.

Unique Advantages

• Highly integrated display capability: On-chip LCD controller and the ability to use internal SRAM as a frame buffer reduce external component count and simplify display system design.
• Built-in storage interfaces: EBI support for SDRAM, NAND Flash and CompactFlash eliminates the need for many external bridge components, lowering BOM and board complexity.
• Dual USB and DMA support: Dual host transceivers plus a device port with integrated FIFOs and DMA channels enable efficient peripheral and mass-storage connectivity.
• Development and debug-ready: EmbeddedICE, DBGU and ETM support simplify development and real-time debugging for time-critical embedded applications.
• Industrial robustness: Surface-mount LFBGA package and −40 °C to 85 °C operating range address industrial deployment requirements.

Why Choose AT91SAM9261B-CU-999?

The AT91SAM9261B-CU-999 combines an ARM926EJ-S core with a broad set of integrated peripherals—display controller, external memory interfaces, USB and system management—providing a compact, highly integrated MPU for embedded and industrial designs. Its combination of processing throughput, on-chip memory options and debug features supports efficient development cycles and reliable operation in temperature-challenging environments.

This part is well suited to designers building LCD-based human-machine interfaces, embedded hosts with local storage needs, and industrial control systems seeking reduced BOM and simplified board architecture, all backed by Microchip Technology’s product offering for the SAM9261 series.

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