ATSAMA5D35A-CUR

The ATSAMA5D35A-CUR is a single-core, 32-bit microprocessor based on the ARM® Cortex®-A5 core running at up to 536 MHz. It combines a high-performance CPU with an on-chip floating point unit, multi-layer bus architecture and extensive connectivity to address industrial and consumer embedded applications.

Designed for control panels, HMIs and connected devices, this industrial-grade MPU delivers integrated memory controllers, multiple high-speed interfaces and hardware security engines while supporting extended temperature operation from -40 °C to 85 °C.

Key Features

• Core ARM® Cortex®-A5 processor, 1 core, 32-bit, up to 536 MHz, with VFP (floating point unit) and integrated MMU for application-level processing.
• Caches and Memory 32 kB data cache and 32 kB instruction cache; internal memory includes 160 kB ROM and 128 kB SRAM. High-bandwidth 32-bit multi-port DRAM controller supports LPDDR, LPDDR2 and DDR2.
• Storage and ECC Independent static memory controller with support for SLC/MLC NAND Flash and up to 24-bit ECC for robust external storage options.
• Connectivity Integrated Gigabit Ethernet MAC (10/100/1000 Mbps) and additional 10/100 EMAC support; three USB 2.0 ports; multiple serial interfaces including CAN, UART, SPI and I²C for broad peripheral integration.
• Display and Sensor Interfaces LCD controller with overlay support, touchscreen controller and a CMOS sensor interface suitable for user interfaces and image capture paths.
• Security Hardware-accelerated cryptography with AES, SHA, TDES and a True Random Number Generator (TRNG), plus secure boot capabilities to protect code and data.
• System Architecture Multi-layer bus architecture with 39 DMA channels and 64-bit advanced interrupt controller to sustain high data bandwidth and offload CPU for real-time transfers.
• Clocking and Power On-chip PLLs (including a 480 MHz USB-optimized PLL and a 400–1000 MHz system PLL) and multiple low-power modes with sub-milliwatt idle capability for power-sensitive designs.
• Package and Environment 324-LFBGA (15 × 15 mm) surface-mount package, industrial grade, operating temperature range −40 °C to 85 °C. RoHS compliant.

Typical Applications

• Control Panels & HMI: Drives graphical displays, touchscreen interfaces and sensor inputs for industrial and consumer human-machine interfaces.
• Industrial Gateways & Networking: Gigabit Ethernet, multiple serial buses and hardware security make it suitable for connected industrial controllers and protocol gateways.
• Battery-Powered Devices: Low-power modes and optimized clocking support designs where reduced standby consumption is required.
• Secure Embedded Systems: On-chip encryption, TRNG and secure boot enable protected firmware and secure external data transfers.

Unique Advantages

• High single-core compute with floating point: 536 MHz Cortex-A5 plus VFP enables accelerated numeric and control tasks without external accelerators.
• Comprehensive on-chip connectivity: Gigabit Ethernet, three USB 2.0 ports and multiple serial interfaces reduce external component count and simplify board routing.
• Robust memory subsystem: Multi-port DRAM controller with LPDDR/LPDDR2/DDR2 support and NAND ECC reduces integration complexity for high-capacity storage.
• Hardware security and secure boot: Built-in AES, SHA, TDES and TRNG provide a hardware foundation for authentication and encrypted communications.
• Industrial-grade reliability: Extended −40 °C to 85 °C operating range and surface-mount 324-LFBGA package support demanding embedded environments.
• DMA-rich architecture: 39 DMA channels and multi-layer bus offload data movement from the CPU, improving throughput for multimedia and high-speed I/O.

Why Choose ATSAMA5D35A-CUR?

The ATSAMA5D35A-CUR positions itself as a balanced, high-performance MPU that integrates processing, memory control, connectivity and security features into a single industrial-grade device. Its Cortex-A5 core with floating point, extensive peripheral set and hardware cryptography make it suitable for designers building connected HMIs, industrial controllers and secure embedded systems that require long-term robustness.

With high-bandwidth DMA, multi-port DRAM support and proven series-level features such as secure boot and NAND ECC, this part helps reduce BOM complexity while delivering the interfaces and capabilities needed for scalable, field-deployable products.

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