DS5240

An NDA is required for full disclosure of details. Contact factory. DS5240 High-Speed Secure Microcontroller www.maxim-ic.com FEATURES § − − − − − − − − − Security features Designed to meet the physical security requirements of FIPS140 and Common Criteria certifications Fine-line, top-level metal pattern detects intrusion of the chip’s cryptographic boundary Additional on-chip sensors detect out-of-range environmental conditions that generate a tamper response The equipment enclosure can be monitored by tamper response inputs for added protection Fast write SRAM technology causes rapid “zeroization” of secure information as a tamper response Eavesdropping on the external memory bus prevented by single or triple -DES encryption of the programs Internal chip clock isolated from external system clock by phase-locked loop Asynchronous internal ring oscillator provides clock for arithmetic operations Resources inside cryptographic boundary include: − Modulo Arithmetic Accelerator (MAA) for up to 4096-bit (e.g., PKI) − DES and 112-bit key triple -DES engines available for secret key cryptography − Random number generator − Memory Management Unit and 1kB cache − Firmware bootstrap loader resides in a 16kB factory-programmed ROM 8051 compatible with expanded addressing Linear address space directly accesses up to 8MB of external memory Dedicated memory and parallel I/O bus saves port pins Four 8-bit ports, one 6-bit port § − − − − − − § − − − Advanced features CRC-16/32 generator p...