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DS5230
IP Security Microcontroller

High-Speed 8051 Microcontroller Encrypts Application Software to Prevent Copying and Reverse Engineering


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Data Sheet
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Description
ABRIDGED DATA SHEET (PDF, 60kB)
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The DS5230 is a highly secure, four clocks-per-machine cycle, 100% 8051-instruction-set-compatible microprocessor in the secure microcontroller family from Maxim Integrated Products. It is a feature-reduced and cost-reduced version of the popular DS5250 high-speed secure microcontroller. Its proven architecture protects embedded application software and data against reverse engineering or cloning. A key feature of the device is that it encrypts its program memory with a hardware-based single- or triple-DES (data encryption standard) algorithm and provides optional data memory encryption, 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. This makes the device ideal for storage and transmission of passwords, personal identification numbers, encryption keys, and other highly confidential information.

Note: Designers must have the following documents to fully use all the features of this device. This data sheet contains pin descriptions, feature overviews, and electrical specifications. Errata sheets contain deviations from published specifications. The user's guides offer detailed information about device features and operation.

Key Features
  • Feature-Rich, 8051-Compatible Microprocessor
    • Accesses Up to 64KB Program and 64KB Data Memory (All Nonvolatile)
    • In-System Programmable Through Serial Port
    • Three 16-Bit Timer/Counters
    • 256 Bytes of Scratchpad RAM
  • Advanced Features
    • CRC-16/32 Generator
    • 2KB Battery-Backed (Nonvolatile) Internal SRAM
    • Dedicated Single DES or 3DES Engine for Automatic Program Memory Encryption
  • High-Speed Architecture
    • Four Clocks-per-Machine Cycle
    • DC-to-25MHz Operation
    • Single-Cycle Instruction in 160ns
    • Dual Data Pointers Can Increment or Decrement Independently
    • Automatic Data Pointer (DPTR) Selection Available
    • Programmable Speed MOVX Instructions
    • 1KB On-Chip Instruction Cache
  • High-Reliability Operation
    • Power-Fail/Overvoltage Reset
    • Early Warning Power-Fail Interrupt
    • Watchdog Timer
  • Security Features
    • Executes Single/3DES-Encrypted Programs to Prevent Observation
    • One Self-Destruct Input
    • Tamper-Sensing Mesh Detects Probe Attacks
    • Programmable Attack Countermeasures
    • True Random-Number Generator (RNG)
    • Program Memory Integrity Checking
  • DS5230 Evaluation Kit Available (DS5230-KIT)

Application Notes
  • Application Note 75: Using the High-Speed Micro's Serial Ports - DS5230
  • Application Note 78: Using Power Management with High-Speed Microcontrollers - DS5230
  • Application Note 89: High-Speed Micro Memory Interface Timing - DS5230
  • Application Note 93: Design Guidelines for Microcontrollers Incorporating NV RAM - DS5230
  • Application Note 137: Using a EconOscillatorâ„¢ to Clock an 8051 Microprocessor - DS5230
  • Application Note 165: Interfacing the DS2760 1-Wire High-Precision Li-Ion Battery Monitor and Protection IC in a Microcontroller Environment - DS5230
  • Application Note 603: Implementing a Serial Port FIFO Using Dual Data Pointers - DS5230
  • Application Note 606: Configuring Keil PK51 Tools to Support 24-Bit Contiguous Addressing Mode - DS5230
  • Application Note 2033: SRAM-Based Microcontroller Optimizes Security - DS5230
  • Application Note 3294: Increasing System Security by Using the DS5250 as a Secure Coprocessor - DS5230
  • Application Note 3338: Using the Keil µVision Debugger with the DS52x0 Secure Microcontrollers - DS5230
  • Application Note 3824: Security in Embedded Systems - DS5230

    Evaluation Kits
    none

    Design Guides
  • Microcontrollers (PDF)

    Reliability Reports
  • Reliability Report: DS5230.pdf

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    This product is not available for purchase.


    More Information
  • High-Speed Microcontroller User's Guide
  • High-Speed Microcontroller User's Guide: DS5250 Supplement

    Related Products
    DS5003 Secure Microprocessor Chip
    DS5250 High-Speed Secure Microcontroller

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    2008-07-09
    This page last modified: 2009-02-11


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