AT91SAM9261-CJ

The AT91SAM9261-CJ is an industrial-grade, ARM926EJ-S based 32-bit microprocessor running at 190 MHz, supplied in a 217-LFBGA (15×15) package. It combines a high-performance processor core with integrated memories, a flexible external bus interface and a broad set of peripherals designed for embedded applications requiring display support, removable-media interfaces and USB connectivity.

With on-chip ROM and SRAM, an integrated LCD controller and multiple host/device USB ports, the device targets embedded and industrial designs that need a compact, highly integrated processing subsystem with robust system management and I/O capabilities.

Key Features

• Core  ARM926EJ-S core, 32-bit, single core operating at 190 MHz delivering up to 210 MIPS; includes 16 KB instruction cache, 16 KB data cache and a write buffer for improved execution efficiency.
• On-chip Memory  Includes 32 KB of internal ROM and 160 KB of internal SRAM with single-cycle access at maximum bus speed to reduce external memory dependency.
• External Memory Interface (EBI/EMI)  Supports SDRAM, static memory, NAND Flash and CompactFlash via the External Bus Interface for flexible system storage and expansion.
• Display Controller  Integrated LCD controller supporting passive and active displays; up to 16 bpp STN color mode and up to 24-bit TFT mode with resolutions up to 2048 × 2048 for rich HMI implementations.
• USB  USB 2.0 Full Speed support with dual Host ports and a Device port, on-chip transceivers, integrated FIFOs and dedicated DMA channels for efficient USB data handling.
• Peripherals & DMA  Nineteen peripheral DMA (PDC) channels, Multimedia Card Interface (MCI) for SD/MMC, three 32-bit PIO controllers (96 I/O lines) and multiple timers including watchdog and real-time timer for deterministic control.
• System & Power Management  Integrated system controller features including reset controller, shutdown controller, clock generator with PLLs, advanced interrupt controller and programmable power optimization modes.
• Bus Matrix & Boot  Five-master/five-slave Bus Matrix with boot mode select and remap command to simplify system-level memory and peripheral arbitration.
• Package & Environmental  217-LFBGA (15×15) surface-mount package; industrial operating temperature range from −40 °C to 85 °C. RoHS compliant.
• Graphics Acceleration  No dedicated graphics accelerator; display output handled by the integrated LCD controller.

Typical Applications

• Human–Machine Interfaces (HMIs)  Use the integrated LCD controller and ample processing performance to drive passive or active displays for menuing, status and control panels.
• Industrial Control Systems  Industrial-grade temperature range and comprehensive system management features make the device suitable for embedded controllers and automation nodes.
• Removable Media Storage & Data Logging  EBI support for NAND/CompactFlash and the integrated MCI for SD/MMC enable robust local storage and data acquisition applications.
• Embedded USB Host/Device Products  Dual USB Host ports and a Device port with on-chip FIFOs and DMA simplify implementation of USB peripherals and host-based connectivity functions.

Unique Advantages

• High integration reduces BOM: On-chip ROM, SRAM, LCD controller, USB ports and peripheral DMA reduce the need for multiple external components.
• Flexible memory and storage options: External Bus Interface supporting SDRAM, static memory, NAND Flash and CompactFlash provides design flexibility for a range of storage strategies.
• Display-ready architecture: Native LCD controller supporting up to 24-bit TFT and high resolutions enables rich graphical user interfaces without an external GPU.
• Industrial reliability: Designed for an operating range of −40 °C to 85 °C and supplied in a robust 217-LFBGA package for surface-mount assembly.
• Comprehensive system control: Integrated reset, shutdown, clock, interrupt and power management controllers simplify system-level design and power optimization.

Why Choose AT91SAM9261-CJ?

The AT91SAM9261-CJ positions itself as a performance-oriented, highly integrated microprocessor for embedded and industrial designs. With a 190 MHz ARM926EJ-S core, on-chip memories, extensive I/O and display support, and comprehensive system management features, it is well suited to designs that require a compact processing subsystem with built-in multimedia and storage interfaces.

Designed for industrial environments and supplied by Microchip Technology, the AT91SAM9261-CJ offers a balance of compute performance, peripheral integration and environmental robustness that supports long-term deployment in embedded control, HMI and data acquisition products.

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