ATSAMA5D35A-CNR

Microprocessors Overview

The ATSAMA5D35A-CNR is a microprocessor unit (MPU) from the Microchip SAMA5D3 series, built on an ARM Cortex-A5 core. It operates at a maximum clock frequency of 536 MHz and features a 32-bit data bus width. The device integrates 128 kB of internal SRAM and 160 kB of ROM. It supports external memory interfaces including LPDDR, LPDDR2, and DDR2. The MPU includes a floating-point unit (FPU) and provides extensive connectivity options such as Ethernet, USB, CAN, I2C, SPI, UART, and SDIO. It is housed in a 324-LFBGA package with a 15x15 mm footprint.

Microprocessors Feature Summary

• Integrates a high-performance ARM Cortex-A5 processor core with a dedicated floating-point unit for efficient mathematical computations.
• Provides robust hardware security features including AES, SHA, TDES encryption engines, and a True Random Number Generator (TRNG).
• Supports multiple external memory types including LPDDR, LPDDR2, and DDR2 for flexible system design.
• Includes integrated peripherals for user interface applications such as TFT LCD controllers and touch screen controllers.

Microprocessors Applications

• Industrial automation and control systems requiring secure communication protocols.
• Human-machine interface (HMI) panels utilizing TFT LCD displays.
• Medical devices needing reliable processing and hardware-based security.
• Smart home and building automation controllers.

Microprocessors Procurement Notes

Verify the suffix 'CN' indicates RoHS compliance and lead-free manufacturing status. Confirm the 'R' suffix denotes tape-and-reel packaging if reel handling is required for assembly. Ensure the operating temperature range matches the specific application environment, as industrial variants typically support extended temperatures. Cross-reference the datasheet for exact pinout compatibility with existing PCB layouts.

Microprocessors Selection Notes

Select this component when a balance of processing power and low power consumption is needed for embedded Linux applications. The SAMA5D3 series offers a cost-effective solution compared to higher-end processors while maintaining sufficient performance for complex UI tasks. Consider the available peripheral count, particularly the number of UARTs and SDIO interfaces, to determine if additional controllers are necessary for the target system architecture.

Microprocessors Part Context

The ATSAMA5D35A-CNR belongs to the SAMA5D3 family of microprocessors designed by Microchip Technology. This series is optimized for applications requiring a rich set of peripherals and multimedia capabilities without the complexity of a full System-on-Chip (SoC). It serves as a bridge between simple microcontrollers and more powerful application processors, supporting standard operating systems like Linux.

Microprocessors Replacement Considerations

Check for direct pin-to-pin replacements within the SAMA5D3 family, such as the ATSAMA5D31 or ATSAMA5D36, depending on memory and peripheral requirements. Verify that any substitute part maintains the same package type and thermal characteristics. Ensure software compatibility if migrating between different members of the same processor family.