Microchip Technology ATSHA204A-XHDA-T

The ATSHA204A-XHDA-T is a sophisticated security device from Microchip Technology that provides a host of features to enhance the security of your electronic systems. This compact, high-security chip is designed to be easily integrated into various applications, including IoT devices, accessory and consumable authentication, secure download and boot, and many more.

At the core of the ATSHA204A-XHDA-T is a hardware-based SHA-256 cryptographic engine that supports a wide range of cryptographic operations. This includes message authentication codes (MAC), hash-based message authentication codes (HMAC), and the generation of random numbers, which are essential for creating secure cryptographic keys.

The device also features a guaranteed unique 72-bit serial number, which is instrumental in preventing counterfeiting and ensuring that each device is uniquely identifiable. This is particularly valuable for supply chain security and for preventing unauthorized device substitution.

With 4.5Kb of EEPROM storage, the ATSHA204A-XHDA-T provides ample space for storing encryption keys, certificates, and other sensitive data. The memory is divided into 16 slots that can be individually configured to meet the needs of your application, offering flexibility in how you manage your security data.

The ATSHA204A-XHDA-T operates within a wide temperature range of -40°C to +85°C, making it suitable for harsh environments. Additionally, it supports an I2C interface for communication, which is a widely used protocol and ensures easy integration into existing systems.

Security is further enhanced with a number of defensive mechanisms. The chip includes active tamper detection and secure EEPROM for key storage, which ensures that sensitive information remains protected even in the event of a physical attack on the device. Furthermore, the ATSHA204A-XHDA-T comes in a compact 8-pad UDFN package, providing a space-saving solution for PCB designs.

Whether you're looking to secure networked systems, authenticate peripherals, or protect intellectual property, the ATSHA204A-XHDA-T from Microchip Technology offers a robust, flexible, and cost-effective solution for your security needs.