DS1232:MicroMonitor芯片

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.

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
DS1232:原理框图
DS1232:原理框图
数据手册DataSheet
语言下载文件备注
英文DS1232.pdfRev 1; 11/1999
关键参数
Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureWatchdog TimeoutSupervisor FeaturesReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
DS12323.3 to 5.5
  • Active High
  • Active Low
  • Open Drain
  • Push-Pull
85ms to 300msInput (WDI)
  • 1s to 2s
  • <1s
Manual Reset2.52000
  • PDIP(N)/8
  • SOIC(W)/16
$1.77 @1k
技术资料
质量和环境数据
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
DS1232停止供货DS1232+PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:否
DS1232 IBM CAT I生产中PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:否
DS1232+生产中PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:无铅
DS1232N停止供货DS1232N+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
DS1232N+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
DS1232S停止供货DS1232S+SOIC(W),;16引脚;111.8mm²0°C至+70°CRoHS/无铅:否
DS1232S+生产中SOIC(W),;16引脚;111.8mm²0°C至+70°CRoHS/无铅:无铅
DS1232S+T&R卷带包装量:1000/盘生产中SOIC(W),;16引脚;111.8mm²0°C至+70°CRoHS/无铅:无铅
DS1232S/T&R卷带包装量:1000/盘停止供货DS1232S+T&RSOIC(W),;16引脚;111.8mm²0°C至+70°CRoHS/无铅:否
DS1232S/T&R/C05停止供货SOIC(W),;16引脚;111.8mm²0°C至+70°CRoHS/无铅:否
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
DS1232SN停止供货DS1232SN+SOIC(W),;16引脚;111.8mm²-40°C至+85°CRoHS/无铅:否
DS1232SN+生产中SOIC(W),;16引脚;111.8mm²-40°C至+85°CRoHS/无铅:无铅
DS1232SN+T&R卷带包装量:1000/盘生产中SOIC(W),;16引脚;111.8mm²-40°C至+85°CRoHS/无铅:无铅
DS1232SN/T&R卷带包装量:1000/盘停止供货DS1232SN+T&RSOIC(W),;16引脚;111.8mm²-40°C至+85°CRoHS/无铅:否
DS1232.pdf DS1232
DS1232.pdf DS1232
DS1232.pdf DS1232
Advantages of Using a MicroMonitor and a Simple Application Demonstrating the Use of a DS1232 DS1232
Supervisory Circuits Keep Your Microprocessor Under Control MAX6315
DS1232.pdf DS1232
原理框图 DS1232