SAM microcontroller families add connectivity interface options

SAM microcontroller families add connectivity interface options

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By Graham Prophet

The D5/E5 MCUs employ ARM Cortex-M4 processor cores with Floating Point Unit (FPU), enabling process-intensive applications on a low-power platform. Running at up to 120 MHz, the D5x and E5x MCUs have up to 1 MB of dual-panel Flash with Error Correction Code (ECC), enabling live updates with no interruption to the running system. These families are available with up to 256 kB of SRAM with ECC, for mission-critical applications such as medical devices or server systems.


These MCUs have multiple interfaces; both families include a Quad Serial Peripheral Interface (QSPI) with an Execute in Place (XIP) feature. This allows the system to use high-performance serial Flash memories, which are both small and inexpensive compared to traditional pin parallel Flash, for external memory needs. The SAM D5/E5 devices also feature a Secure Digital Host Controller (SDHC) for data logging, a Peripheral Touch Controller (PTC) for capacitive touch capabilities and active power performance of 65 uA/MHz for applications requiring power efficiency. The SAM E5 family includes two CAN-FD ports and a 10/100 Mbps Ethernet Media Access Controller (MAC) with IEEE 1588 support, for industrial automation, connected home and other Internet of Things (IoT) applications.


Both the SAM D5x and E5x families contain cryptographic hardware and software support. Hardware-based security features include a Public Key Cryptographic Controller (PUKCC) supporting Elliptic Curve Cryptography (ECC) and RSA schemes as well as an Advanced Encryption Standard (AES) cipher and Secure Hash Algorithms (SHA).


The SAM E54 Xplained Pro Evaluation Kit incorporates an on-board debugger, as well as additional peripherals, to further ease the design process. All SAM D5x/E5x MCUs are supported by the Atmel Studio 7 Integrated Development Environment (IDE) as well as Atmel START, a free online tool to configure peripherals and software to accelerate development. The SAM E54 Xplained Pro Evaluation Kit is priced at $84.99 each.





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