Microchip Technology

High-performance secure memory that provides 1Kbit of user memory with advanced security and cryptographic features built-in. The user memory is divided into four 32-byte zones, each of which may be either individually set with different security access rights or effectively combined together to provide space for one to four data files. The device features an enhanced command set that allows direct communication with the microcontroller hardware two-wire interface. This enables faster firmware development with reduced code space requirements.

Designed as the mate to Microchip CryptoRF?? and CryptoMemory?? devices, the CryptoCompanion??? device makes extensive use of the SHA-1 hash algorithm. CryptoCompanion generates SHA-1 digests of single round datasets at a time.

High-performance secure memory that provides 2Kbit of user memory with advanced security and cryptographic features built-in. The user memory is divided into four 64-byte zones, each of which may be either individually set with different security access rights or effectively combined together to provide space for one to four data files. The device features an enhanced command set that allows direct communication with the microcontroller hardware two-wire interface. This enables faster firmware development with reduced code space requirements.

High-performance secure memory that provides 4-Kbit of user memory with advanced security and cryptographic features built-in. The user memory is divided into four 128-byte zones, each of which may be either individually set with different security access rights or effectively combined together to provide space for one to four data files. The device features an enhanced command set that allows direct communication with the microcontroller hardware two-wire interface. This enables faster firmware development with reduced code space requirements.

Microchip CryptoRF?? integrates a 13.56MHz RF interface into Microchip CryptoMemory?? to create a contactless secure RFID solution with advanced security and cryptographic features. The device is optimized as contactless secure memory for RF tags and secure data storage without requiring an internal microprocessor. This device contains 8Kb of user memory and 2Kb of configuration memory containing: eight sets of read/write passwords, four crypto key sets, security access registers for each user zone, and password/key registers for each zone. The maximum communication range between the reader antenna and contactless card is approximately 10cm when used with an RFID reader that transmits the maximum ISO/IEC 14443-2 RF power level. The RF interface powers the other circuits.

Designed as the hotstick companion to the Microchip CryptoRF?? and Microchip CryptoMemory?? devices, the Microchip CryptoCompanion??? device makes extensive use of the SHA-1 hash algorithm. The device eliminates the concern of hostside secrets in the firmware.