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Maxim产品 - MAX6374介绍

MAX6374 - 引脚可设置看门狗定时器

MAX6374是Maxim美信半导体公司的一款监控电路、电压监测、排序产品，MAX6374是引脚可设置看门狗定时器，本站介绍了MAX6374的封装应用图解、特点和优点、功能等，并给出了与MAX6374相关的Maxim元器件型号供参考。

MAX6374 - 引脚可设置看门狗定时器 - 监控电路、电压监测、排序 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX6369–MAX6374 are pin-selectable watchdog timers that supervise microprocessor (µP) activity and signal when a system is operating improperly. During normal operation, the microprocessor should repeatedly toggle the watchdog input (WDI) before the selected watchdog timeout period elapses to demonstrate that the system is processing code properly. If the µP does not provide a valid watchdog input transition before the timeout period expires, the supervisor asserts a watchdog (active-low WDO) output to signal that the system is not executing the desired instructions within the expected time frame. The watchdog output pulse can be used to reset the µP or interrupt the system to warn of processing errors.

The MAX6369–MAX6374 are flexible watchdog timer supervisors that can increase system reliability through notification of code execution errors. The family offers several pin-selectable watchdog timing options to match a wide range of system timing applications:

  • Watchdog startup delay: provides an initial delay before the watchdog timer is started.
  • Watchdog timeout period: normal operating watchdog timeout period after the initial startup delay.
  • Watchdog output/timing options: open drain (100ms) or push-pull (1ms).
The MAX6369-MAX6374 operate over a +2.5V to +5.5V supply range and are available in miniature 8-pin SOT23 packages.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Precision Watchdog Timer for Critical µP Applications
  • Pin-Selectable Watchdog Timeout Periods
  • Pin-Selectable Watchdog Startup Delay Periods
  • Ability to Change Watchdog Timing Characteristics Without Power Cycling
  • Open-Drain or Push-Pull Pulsed Active-Low Watchdog Output
  • Watchdog Timer Disable Feature
  • +2.5V to +5.5V Operating Voltage
  • 8µA Low Supply Current
  • No External Components Required
  • Miniature 8-Pin SOT23 Package
    • 热门应用
  • 汽车
  • 精确的µC与微控制器(µC)监控
  • 嵌入式控制系统
  • 工业控制器
  • 网络
  • 电信
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