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DS5250
Rev 4; 11/08
ABRIDGED DATA SHEET
EVAALVUAAILTAIOBNLEKIT
High-Speed Secure Microcontroller
General Description
The DS5250 is a highly secure, four clocks-permachine cycle, 100% 8051-instruction-set-compatible microprocessor in Maxim’s secure microcontroller family. It was designed to be the cryptographic engine of PIN pads, financial terminals, and any other application in which data security is paramount. A key feature of the device is that it encrypts its program memory and optionally its data memory with a hardware-based single- or triple-DES (data encryption standard) algorithm, making it almost impossible to extract information. It also implements block cipher encoding that uses block addresses to modify the encrypted data, further strengthening security.