DS1232LP

低功耗、MicroMonitor芯片


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说明

The DS1232LP/LPS Low-Power MicroMonitor Chip monitors three vital conditions for a microprocessor: power supply, software execution, and external override. First, a precision temperature-compensated reference and comparator circuit monitors the status of VCC. When an out-of-tolerance condition occurs, an internal power-fail signal is generated, which forces reset to the active state. When VCC returns to an in-tolerance condition, the reset signals are kept in the active state for a minimum of 250ms to allow the power supply and processor to stabilize.

DS1232LP:原理框图 DS1232LP:原理框图 放大+

关键特性

  • Super-low power version of DS1232
  • 50µA quiescent current
  • Halts and restarts an out-of-control microprocessor
  • Automatically restarts microprocessor after power failure
  • Monitors pushbutton for external override
  • Accurate 5% or 10% microprocessor power supply monitoring
  • 8-pin DIP, 8-pin SO, or space saving µSOP package available
  • Optional 16-pin SO package available
  • Industrial temperature -40°C to +85°C available, designated N
  • 请查看具体的参数规格 Supervisors (1 Monitored Voltage) (250)


    Part NumberReset Thresh.
    (V)
    Reset OuttRESETWatchdog FeatureWatchdog TimeoutSupervisor FeaturesReset Thresh. Accur.
    (%)
    ICC
    (µA)
    Package/PinsBudgetary
    Price
    (min)(@ +25°C)(max)(See Notes)
    DS1232LP 3.3 to 5.5
    Active High
    Active Low
    Open Drain
    Push-Pull
    85ms to 300msInput (WDI)
    1s to 2s
    <1s
    Manual Reset2.550
    PDIP/8
    SOIC (N)/8
    SOIC (W)/16
    UMAX/8
    $1.32 @1k

    Pricing Notes:
    价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。
    产品可靠性报告: DS1232LP.pdf 
    型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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