DS28E05R+T Integrated Circuits (ICs)

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The DS28E05R+T is a secured memory device that combines a Maxim integrated Digital Signature Transponder with a secure EEPROM. This device enables secure authentication and storage of non-volatile data. It is typically used in applications that require data to be stored in a secure environment, and it is capable of securely storing up to 176 bytes of memory. In this article, we will discuss the application areas and working principles of the DS28E05R+T.

Application

The DS28E05R+T is ideal for applications that require secure authentication. It is particularly well-suited for security applications that require a high level of trust, such as smart cards and other secure ID tokens. It is also used in applications where storage of non-volatile data is needed, such as in automotive systems, medical devices, and industrial process control systems. Further, it is suitable for storage of sensitive information, such as passwords and encryption keys.

Working Principle

The DS28E05R+T combines a digital signature transponder with a secure EEPROM. The transponder contains a locked 64-bit binary register, which is used to store user-defined information. When the device is powered up, the user-defined information is locked. The EEPROM is used to store the user\'s data. Specifically, the device stores up to 176 bytes of non-volatile memory.

The DS28E05R+T has an onboard cryptographic coprocessor, which performs all of the cryptographic operations required for secure identification and authentication. The coprocessor generates an 8-byte cryptographic key on power-up, which is used to protect the user-defined information. Further, the coprocessor verifies the authenticity of the user-defined information on power-up and subsequent communications with a host device.

The device also provides an integrated secure communication protocol, called the Message Authentication Protocol. This protocol allows for secure, authenticated communication between the DS28E05R+T and a host device via a single-wire bus. The protocol is used for authentication and data transfer.

Conclusion

The DS28E05R+T is a secure memory device that combines a Digital Signature Transponder with a secure EEPROM. It enables secure authentication and storage of non-volatile data. It is typically used in applications that require data to be stored in a secure environment and is suitable for applications involving security, automotive systems, medical devices and industrial process control systems. The device provides an onboard cryptographic coprocessor to perform all cryptographic operations required for authentication, as well as an integrated secure communication protocol to enable secure, authenticated communication between the device and a host device.

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