MAX32520 ChipDNA Secure ARM Cortex™-M4 MCU Analog Devices MAX32520 ChipDNA Secure ARM Cortex™-M4 Microcontroller features a DeepCover® embedded security solution to cloak sensitive data. DeepCover provides an interoperable, secure, and cost-effective solution to build new generations of trusted embedded systems and communication devices such as the Internet of Things (IoT), IoT gateways, and wireless access points. MAX32520 also incorporates proprietary ChipDNA™ PUF technology that includes a physically unclonable function (PUF) that enables protection against invasive physical attacks. Analog Devices MAX32520 ChipDNA Secure ARM Cortex-M4 MCU utilizes ChipDNA output as key content to cryptographically secure all device-stored data, including user firmware.