AT91SAM9CN12-CFU

The AT91SAM9CN12-CFU is a single-core, 32-bit embedded microprocessor based on the ARM926EJ-S core running up to 400 MHz. It combines user-interface features (LCD controller and resistive touchscreen support) with high-data-rate connectivity and flexible memory interfaces, making it well suited for embedded systems that require integrated peripherals and secure boot capabilities.

Designed for industrial-grade applications, the device emphasizes integration and performance with on-chip cryptographic accelerators, multiple USB ports, a multi-layer bus with DMA, and support for modern memory types to simplify system design.

Key Features

• Core  ARM926EJ-S 32-bit processor core running up to 400 MHz, with instruction and data caches and an MMU for system-level memory management.
• Memory and Storage Interfaces  Supports LPDDR, LPDDR2, DDR2, SDR and SRAM; includes a 32 Kbyte internal SRAM and a 128 Kbyte internal ROM for bootstrap and system code.
• Display and Touch  Integrated LCD controller and resistive touchscreen support for user-interface applications.
• Connectivity  Two USB 2.0 full-speed ports (Host and Device) plus general-purpose serial/peripheral interfaces (UART, SPI, I2C, SDIO referenced in series description).
• External Bus and Storage  32-bit External Bus Interface supporting DDR2/LPDDR and static memories, and an MLC/SLC NAND controller with programmable multibit ECC.
• Security and Crypto  On-chip hardware accelerators supporting up to 256-bit AES and FIPS 180-2 compliant SHA1/SHA256, plus an embedded True Random Number Generator and device fuse bits. The SAM9CN12 includes a secure Boot ROM.
• System Performance  Internal 133 MHz multi-layer bus architecture with an 8-channel DMA controller to sustain high peripheral and processor bandwidths.
• Power and Clocking  Power management features including clock gating, multiple internal oscillators, and dedicated PLLs for system and USB clocking to optimize power consumption.
• Package and Mounting  247-ball LFBGA package (10 × 10 mm ball pitch) in a surface-mount form factor for compact board designs.
• Industrial Temperature Range  Operating temperature range from −40 °C to +85 °C for industrial applications.
• IO Voltage Flexibility  I/Os support 1.8 V or 3.3 V operation and are independently configurable for memory and peripheral I/Os.
• Compliance  RoHS compliant.

Typical Applications

• Human-Machine Interfaces (HMIs)  Use the integrated LCD controller and touchscreen support to build compact, responsive user interfaces for industrial control panels and operator displays.
• Secure Embedded Gateways  Leverage on-chip AES/SHA accelerators and TRNG with secure Boot ROM to implement authenticated and encrypted data transfer in connected devices.
• Multimedia and Data Acquisition  High-bandwidth bus architecture and DMA support enable efficient handling of display data, peripheral I/O and high-rate data streams.
• Industrial Controllers  Industrial temperature rating, flexible memory interfaces and multiple peripherals make this MPU suitable for control systems that require robust, long-term operation.

Unique Advantages

• Integrated security features: Secure Boot ROM, hardware AES/SHA accelerators and TRNG reduce the need for external security co-processors and simplify secure system design.
• Flexible memory support: Native support for LPDDR/DDR2, SDR and NAND flash enables designers to choose memory technologies that match performance and cost targets.
• High I/O integration: Built-in LCD controller, touchscreen support, dual USB ports, and multiple serial/peripheral interfaces lower BOM count and speed time-to-market.
• Industrial robustness: Rated for −40 °C to +85 °C operation and offered in a compact 247-BGA package for reliable deployment in industrial environments.
• Efficient data handling: Multi-layer bus and 8-channel DMA provide sustained throughput for processor and high-speed peripherals.
• Configurable I/O voltage: 1.8 V or 3.3 V selectable I/Os remove the need for external level shifters in mixed-voltage designs.

Why Choose AT91SAM9CN12-CFU?

The AT91SAM9CN12-CFU positions itself as a highly integrated embedded MPU that combines an ARM926EJ-S core running up to 400 MHz with extensive peripheral integration, hardware security accelerators, and modern memory interfaces. Its feature set addresses designs that require user interfaces, secure connectivity, and industrial operating conditions.

This device is ideal for engineers building industrial HMI, secure gateways, and data-intensive embedded systems who need on-chip cryptography, flexible memory support, dual USB, and a compact BGA package to streamline board design and reduce system complexity.

Request a quote or submit your project requirements to receive pricing and availability for the AT91SAM9CN12-CFU.