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32-bit MCUs come with chip-level security and Arm TrustZone

32-bit MCUs come with chip-level security and Arm TrustZone

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By eeNews Europe



The MCU families are based on the Arm Cortex-M23 core, with the SAM L11 featuring Arm TrustZone for Armv8-M, a programmable environment that provides hardware isolation between certified libraries, IP and application code. Microchip enables robust security by including chip-level tamper resistance, secure boot and secure key storage which, when combined with TrustZone technology, protects customer applications from both remote and physical attacks.

Both MCU families offer the industry’s lowest power consumption, as well as capacitive touch capability with water tolerance and noise immunity. When benchmarked for power consumption, the SAM L10 received a ULPMark score of 405, which is over 200 percent better performance than the nearest competitor certified by the Embedded Microprocessor Benchmark Consortium (EEMBC), claims Microchip. It uses proprietary picoPower technology to provide industry-leading low power consumption in active and all sleep modes.

In addition to TrustZone technology, the SAM L11 security features include an on-board cryptographic module supporting Advanced Encryption Standard (AES), Galois Counter Mode (GCM) and Secure Hash Algorithm (SHA). The secure boot and secure key storage with tamper detection capabilities establish a hardware root of trust. It also offers secure bootloader for secure firmware upgrades.

Microchip – www.microchip.com

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