The ATSHA204A-SSHDA-B is an encryption chip manufactured by Atmel (now acquired by Microchip Technology). Here are the details about it:
Flexible command set: The chip's command set allows it to be used in a variety of applications, such as cryptographic elements with protected hardware-based key stores, secure symmetric authentication device host and client operations, advanced SHA-256 hashing algorithm with message verification code (MAC), and hashing based Message Verification Code (HMAC) options.
Advanced encryption performance: The ATSHA204A-SSHDA-B has the best-in-class 256-bit key length and can store up to 16 keys. It also features a guaranteed unique 72-bit serial number, built-in high-quality random number generator (RNG), 4.5Kb EEPROM for keys and data, and 512-bit OTP (one-time programmable) bits for fixed information.
Multiple I/O options: The ATSHA204A-SSHDA-B supports multiple I/O options, such as UART-compatible high-speed, single-wire interface, 1MHz I2C interface, and more.
Wide range of applications: Due to its strong encryption capabilities and flexibility, ATSHA204A-SSHDA-B is widely used in security ics/verification ics, RoHS products, devices with a data bus width of 72 bit, etc.
Wide supply voltage range: The chip's operating supply voltage is 2 V to 5.5 V, and the communication voltage range is 1.8 V to 5.5 V.
Large operating temperature range: The ATSHA204A-SSHDA-B can operate normally in the temperature range of -40°C to +85°C.
The above information is for reference only, if you need more information about ATSHA204A-SSHDA-B, it is recommended to consult Atmel's technical support department or its official documentation.
