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      STWD100NYWY3F監控電路
      STWD100NYWY3F監控電路
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      STWD100NYWY3F監控電路

      型號:

      STWD100NYWY3F

      品牌:

      ST

      封裝:

      SOT-23-5

      包裝:

      SOT-23-5

      PDF資料:

      點擊下載PDF

      產品信息

      Current consumption 13 µA typ.
      Available watchdog timeout periods are
      3.4 ms, 6.3 ms, 102 ms, and 1.6 s
      Chip enable input
      Open drain or push-pull WDO output
      Operating temperature range: –40 to 125 °C
      Packages: SOT23-5 and SC70-5
      (SOT323-5)
      ESD performance
      HBM: 2000 V
      CDM: 1000 V
      Automotive qualified
      Applications
      Telecommunications
      Alarm systems
      Industrial equipment
      Networking
      Medical equipment
      UPS (uninterruptible power supply)
      Automotive
      Description
      The STWD100 watchdog timer circuits are self
      contained devices which prevent system failures
      that are caused by certain types of hardware
      errors (such as, non-responding peripherals and
      bus contention) or software errors (such as a bad
      code jump and a code stuck in loop).
      The STWD100 watchdog timer has an input,
      WDI, and an output, WDO . The input is used to
      clear the internal watchdog timer periodically
      within the specified timeout period, twd. While the
      system is operating correctly, it periodically
      toggles the watchdog input, WDI. If the system
      fails, the watchdog timer is not reset, a system
      alert is generated and the watchdog output,
      WDO , is asserted.
      The STWD100 circuit also has an enable pin,
      EN , which can enable or disable the watchdog
      functionality. The EN pin is connected to the
      internal pull-down resistor. The device is enabled
      if the EN pin is left floating.
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