DS1232

MicroMonitor芯片


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说明

The DS1232 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.

DS1232:原理框图 DS1232:原理框图 放大+

关键特性

  • Halts and restarts an out-of-control microprocessor
  • Holds microprocessor in check during power transients
  • Automatically restarts microprocessor after power failure
  • Monitors pushbutton for external override
  • Accurate 5% or 10% microprocessor power supply monitoring
  • Eliminates the need for discrete components
  • Space-saving, 8-pin mini-DIP
  • Optional 16-pin SOIC surface mount package
  • Industrial temperature -40°C to +85°C available, designated N
Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureWatchdog TimeoutSupervisor FeaturesReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
DS1232 3.3 to 5.5
Active High
Active Low
Open Drain
Push-Pull
85ms to 300msInput (WDI)
1s to 2s
<1s
Manual Reset2.52000
PDIP/8
SOIC (W)/16
$1.77 @1k
查看所有Supervisors (1 Monitored Voltage) (261)
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。

CAD Symbols and Footprints

  • DS1232+
  • DS1232LP+
  • DS1232LPN+
  • DS1232LPS+
  • DS1232LPS+T&R
  • DS1232LPS-2+
  • DS1232LPS-2+T&R
  • DS1232LPSN+
  • DS1232LPSN+T&R
  • DS1232LPSN-2+
  • DS1232LPSN-2+T&R
  • DS1232LPU+
  • DS1232LPU+T&R
  • DS1232N+
  • DS1232S+
  • DS1232S+T&R
  • DS1232SN+
  • DS1232SN+T&R
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    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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