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DS2252T Datasheet(PDF) 1 Page - Dallas Semiconductor |
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DS2252T Datasheet(HTML) 1 Page - Dallas Semiconductor |
1 / 16 page 1 of 16 REV: 061306 GENERAL DESCRIPTION The DS2252T secure microcontroller module is an 8051-compatible microcontroller based on nonvolatile RAM technology. It is designed for systems that need to protect memory contents from disclosure. This includes key data, sensitive algorithms, and proprietary information of all types. Like other members of the secure microcontroller family, it provides full compatibility with the 8051 instruction set, timers, serial port, and parallel I/O ports. By using NV RAM instead of ROM, the user can program, then reprogram the microcontroller while in-system. This allows frequent changing of sensitive processes with minimal effort. PIN CONFIGURATION Operating information and detailed summary of this product’s security features are contained in the Secure Microcontroller User’s Guide. This data sheet provides ordering information, pinout, and electrical specifications. FEATURES 8051-Compatible Microcontroller 8, 32, or 64kbytes of Nonvolatile SRAM for Program and/or Data Memory Storage In-System Programming via On-Chip Serial Port Capable of Modifying its Own Program and/or Data Memory in the End System Firmware Security Features Memory Stored in Encrypted Form Encryption Using On-Chip 64-Bit Key Automatic True Random Key Generator Self-Destruct Input (SDI) Improved Security Over Previous Generations Protects Memory Contents from Piracy Crashproof Operation Maintains All Nonvolatile Resources Up to 10 Years in the Absence of VCC at Room Temperature Power-Fail Reset Early Warning Power-Fail Interrupt Watchdog Timer Precision Reference for Power Monitor Fully 8051 Compatible 128 Bytes Scratchpad RAM Two Timer/Counters On-Chip Serial Port 32 Parallel I/O Port Pins Permanently Powered Real-Time Clock ORDERING INFORMATION PART RAM SIZE (kB) MAX CRYSTAL SPEED (MHz) TIMEKEEPING? DS2252T-64-16 64 16 Yes DS2252T-64-16# 64 16 Yes DS2252T-128-16 128 16 Yes DS2252T-128-16# 128 16 Yes # Denotes RoHS-compliant device that may contain lead exempt under the RoHS requirements. DS2252T Soft Microcontroller Module www.maxim-ic.com 1 20 21 40 40-Pin SIMM DS2252T |
Similar Part No. - DS2252T_06 |
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Similar Description - DS2252T_06 |
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