AT91SAM9261SB-CU

The AT91SAM9261SB-CU is a single-core, 32-bit microprocessor based on the ARM926EJ-S core running at 190 MHz. It is a highly integrated embedded MPU designed for industrial applications, combining a fast CPU, on-chip memories, extensive peripheral controllers and flexible external memory interfaces.

With integrated display support, USB host/device capability, multimedia interfaces and a comprehensive system controller, the device targets embedded designs that require performance, peripheral integration and operation across an industrial temperature range.

Key Features

• Core & Performance ARM926EJ-S core, 190 MHz operation with reported 210 MIPS performance at 190 MHz, including Thumb and DSP instruction extensions and Jazelle technology for Java acceleration.
• On-chip Memory 32 Kbyte internal ROM with single-cycle access at maximum bus speed and 16 Kbyte internal SRAM with single-cycle access at bus speed; includes 16 Kbyte instruction and 16 Kbyte data caches and a write buffer.
• External Memory Interface (EBI) External Bus Interface supporting SDRAM, static memory, NAND Flash and CompactFlash for flexible system storage and boot options.
• Display Controller Integrated LCD controller supporting passive or active displays—up to 16 bits/pixel in STN color mode and up to 24-bit/TFT (16M colors), with resolutions up to 2048 × 2048.
• USB and Connectivity USB 2.0 Full Speed host (double port) and device port with on-chip transceivers, integrated FIFOs and dedicated DMA channels for efficient USB data handling.
• Multimedia and Audio Multimedia Card Interface (MMC/SDCard compliant) with PDC support and three Synchronous Serial Controllers (SSC) including I²S analog interface for audio applications.
• System & Debug EmbeddedICE debug support, Embedded Trace Macrocell, Debug Communication Channel, Advanced Interrupt Controller and extensive DMA/PDC channels to simplify system design and debugging.
• Power, Clock & Timers Integrated clock generator and power management controller, two PLLs, watchdog, periodic interval timer and real-time timer for robust system control and power optimization.
• Industrial Grade & Packaging Industrial operating temperature range −40 °C to 85 °C and 217-LFBGA (15 × 15 mm) surface-mount package.

Typical Applications

• Graphical Human-Machine Interfaces — The on-chip LCD controller with up to 24-bit TFT color and high-resolution support enables rich display-driven interfaces for industrial panels and control consoles.
• USB-Connected Embedded Systems — Dual USB host ports and a device port, plus integrated FIFOs and DMA, make the device suitable for USB peripherals, data acquisition and connectivity hubs.
• Multimedia and Audio Devices — MMC/SD card interface combined with SSCs and I²S support allow secure media playback, audio streaming and local storage applications.
• Storage and Boot Systems — External Bus Interface compatibility with NAND Flash and CompactFlash supports mass storage, boot from external media and flexible memory expansion.

Unique Advantages

• Highly integrated peripheral set: Combines display, USB, MMC/SD, SSC/I²S and a flexible EBI to reduce BOM and simplify board design.
• Deterministic performance: ARM926EJ-S core at 190 MHz with caches and a write buffer delivers predictable processing capability for embedded workloads.
• Comprehensive system control: On-chip clock generator, power management controller, reset and shutdown controllers streamline system-level design and power optimization.
• Robust development and debug support: EmbeddedICE, debug communication channel and trace capabilities ease software bring-up and troubleshooting.
• Industrial temperature rating: Specified operation from −40 °C to 85 °C for deployment in industrial environments.
• Compact BGA package: 217-LFBGA (15 × 15 mm) surface-mount package provides a small footprint for space-constrained embedded boards.

Why Choose AT91SAM9261SB-CU?

The AT91SAM9261SB-CU positions itself as a balanced, integrated MPU for embedded designs that require a mix of CPU performance, display capabilities, multimedia interfaces and flexible external memory support. Its ARM926EJ-S core, on-chip memories and rich peripheral set reduce external components while enabling a broad range of system functions.

This device is well suited for engineers developing industrial-grade embedded products who need a compact BGA package, industrial temperature operation and built-in system management and debug features to accelerate development and lower system complexity.

Request a quote or submit a procurement inquiry to evaluate the AT91SAM9261SB-CU for your next embedded design. For pricing, availability and lead-time information, please submit a quote request today.