ATAES132A-SHEQ-B Integrated Circuits (ICs)

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The ATAES132A-SHEQ-B (Secure Hardware Encrypted Quick) is an innovative memory device from Microchip Technology designed to provide secure, reliable storage to a variety of embedded applications. The device combines 128-bit AES hardware encryption, a secure one time programmable (OTP) memory for loading encryption keys and up to 7Kbytes of user-defined, non-volatile memory for storing user data. The combination of secure encryption, key storage and configurable memory in the ATAES132A-SHEQ-B makes it the perfect solution for use in embedded systems requiring securely stored and retrieved data.

At its core, the ATAES132A-SHEQ-B is a secure non-volatile memory device designed to store and retrieve user data securely. It utilizes Microchip\'s ATAES132A secure authentication chip, supporting the advanced AES encryption algorithm for protecting data stored on the device. The device also features an onboard OTP memory which can be programmed once to store the secret key required to encrypt and decrypt the user data stored on the device itself. The OTP memory can be programmed to any combination of 256 characters, allowing for a secure and reliable method of storing a secret encryption key.

The ATAES132A-SHEQ-B is designed to provide secure and reliable storage for stringent embedded applications requiring secure storage and access to confidential data. The device supports various bus interfaces, including SPI, I2C, and UART. An I2C-user mode is available for configuring the device\'s clock and data rate and the maximum data length for a single transaction. The device also supports a variety of authentication protocols and modes, such as SHA-2 authentication and authentication with public/private keys, depending on the application.

In addition to the secure authentication chip, the ATAES132A-SHEQ-B also features up to 7Kbytes of user-defined, non-volatile memory for storing and retrieving user data. The memory is organized into five distinct addressable memory regions, with each region capable of being individually configured for maximum write protection. For example, one region could be configured for read-only access while another could be configured as read/write with a write disable feature. This allows system designers to tailor their security needs across various applications, ensuring maximum security while allowing the flexibility needed to meet application requirements.

The ATAES132A-SHEQ-B employs a number of features which make secure storage easier to implement within the application. It features the CryptoAuthentication protocol which is used to create secure authentication links between the ATAES132A-SHEQ-B and a host processor. The protocol supports both HMAC-SHA256 and ECDFA digital signatures, allowing secure mutual authentication and communication between an external host processor and the ATAES132A-SHEQ-B. The device also supports a hot-plugging feature which allows the device to be re-programmed without the need for additional hardware or software modifications.

The ATAES132A-SHEQ-B is an attractive solution for embedded applications requiring secure storage and access to confidential data. The combination of hardware encryption, secure key storage and configurable non-volatile memory in the form factor of a small IC makes it an ideal solution for space-constrained applications. With its extensive support of authentication protocols and modes, hot-plugging feature and robust encryption capabilities, the ATAES132A-SHEQ-B is the perfect solution for applications in need of robust secure storage.

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