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微管理器芯片

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主要特征

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数据资料 微管理器芯片 Nov 18, 1999

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主要特征

  • Holds microprocessor in check during power transients
  • Halts and restarts an out-of-control microprocessor
  • Warns microprocessor of an impending power failure
  • Converts CMOS SRAM into nonvolatile memory
  • Unconditionally write protects memory when power supply is out of tolerance
  • Consumes less than 200nA of battery current
  • Controls external power switch for high current applications
  • Debounces pushbutton reset
  • Accurate 10% power supply monitoring
  • Optional 5% power supply monitoring designated DS1238A-5
  • Provides orderly shutdown in microprocessor applications
  • Pin-for-pin compatible with MAX691
  • Standard 16-pin DIP or space-saving 16-pin SOIC
  • Optional industrial temperature range -40°C to +85°C
  • 应用/用途

    描述

    The DS1238A MicroManager provides all the necessary functions for power supply monitoring, reset control, and memory backup in microprocessor-based systems. A precise internal voltage reference and comparator circuit monitor power supply status. When an out-of-tolerance condition occurs, the microprocessor reset and power-fail outputs are forced active, and static RAM control unconditionally write protects external memory. The DS1238A also provides early warning detection of a user-defined threshold by driving a non-maskable interrupt.

    简化框图

    Technical Docs

    数据资料 微管理器芯片 Nov 18, 1999

    支持和培训

    在Maxim的知识库中搜索技术问题的答案

    过滤搜索

    Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心