AT91SAM9N12-CUR

The AT91SAM9N12-CUR is a 32-bit microprocessor based on the ARM926EJ-S core, running at up to 400 MHz in a single-core configuration. It combines a high-performance application core with integrated memory controllers and a wide set of peripherals to support embedded designs that require user interfaces, storage connectivity and robust industrial operation.

Designed for embedded and industrial applications, this part targets systems that need LCD/touchscreen support, high-speed USB connectivity, and flexible external memory options while operating across an extended temperature range.

Key Features

• Processor  ARM926EJ-S core, single 32-bit core running up to 400 MHz with instruction and data caches and an MMU.
• Memory and Storage  On-chip 128 Kbyte internal ROM and 32 Kbyte internal SRAM; external 32-bit External Bus Interface supporting LPDDR, LPDDR2, DDR2, SDR and SRAM; integrated MLC/SLC NAND controller with programmable multi-bit ECC (PMECC).
• Display and HMI  Integrated LCD controller and resistive touchscreen support for user-interface applications.
• Connectivity  Two USB 2.0 full-speed interfaces (Host and Device supported), SDIO and multiple serial peripheral interfaces including UART, SPI and I2C as described in the series summary.
• System Architecture and DMA  Multi-layer bus architecture with a system frequency up to 133 MHz and an 8-channel DMA controller to sustain high bandwidth between CPU, memory and peripherals.
• Security and Randomness  Includes a True Random Number Generator (TRNG) for key generation and cryptographic protocols as indicated for the SAM9N12 series.
• Power Management and RTC  Integrated power management features including clock gating, shutdown controller, low-power oscillators and battery backup registers to reduce standby and active power consumption.
• Package and Mounting  217-ball LFBGA package (15 × 15 mm) for surface-mount assembly.
• Industrial Temperature Range  Rated for operation from −40 °C to 85 °C.
• Standards and Compliance  RoHS compliant.

Typical Applications

• Human-Machine Interfaces (HMIs)  Drive LCD panels and resistive touchscreens while running the application stack on the ARM926EJ-S core.
• Industrial Control and Automation  Provide deterministic processing, external memory support and extended temperature operation for embedded controllers and gateways.
• Connectivity and Storage Devices  Use integrated USB 2.0 and SDIO plus NAND controller for high-data-rate connectivity and on-board storage management.
• Embedded Networking Appliances  Combine the processor, DMA and peripheral set to handle protocol processing and peripheral interfacing in compact embedded systems.

Unique Advantages

• High single-core performance: Up to 400 MHz ARM926EJ-S core provides strong single-threaded compute for UI and protocol tasks.
• Flexible memory support: Native controllers for LPDDR/LPDDR2/DDR2/SDR and SRAM plus NAND support simplify BOM and allow multiple storage options.
• Integrated display and touch support: On-chip LCD controller and touchscreen interface reduce external components for HMIs.
• Rich peripheral connectivity: Dual USB 2.0, SDIO and standard serial interfaces enable a variety of connectivity scenarios without extensive external logic.
• Industrial-ready packaging and thermal range: 217-LFBGA surface-mount package and −40 °C to 85 °C rating support deployment in industrial environments.
• Power and boot management: Built-in power management, shutdown controller and boot ROM provide controlled startup and low-power operation.

Why Choose AT91SAM9N12-CUR?

The AT91SAM9N12-CUR positions itself as a balanced, industrial-grade MPU that pairs an ARM926EJ-S processor running to 400 MHz with integrated memory controllers, display interfaces and a comprehensive peripheral set. It is suited to embedded systems that require user interface capability, robust external memory support and reliable connectivity in extended-temperature environments.

This device is appropriate for design teams seeking a compact, surface-mount solution with on-chip features that reduce external component count while providing long-term deployment advantages such as RoHS compliance and industrial temperature operation.

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