MAX6323:微处理器监控电路,窗式(最小/最大)看门狗定时及手动复位

业内首款µP监控电路,具有窗式看门狗定时器和手动复位

The MAX6323/MAX6324 microprocessor (µP) supervisory circuits monitor power supplies and µP activity in digital systems. A watchdog timer looks for activity outside an expected window of operation. Six laser-trimmed reset thresholds are available with ±2.5% accuracy from +2.32V to +4.63V. Valid active-low RESET output is guaranteed down to VCC = +1.2V. The active-low RESET output is either push-pull (MAX6323) or open-drain (MAX6324). active-low RESET is asserted low when VCC falls below the reset threshold, or when the manual reset input (active-low MR) is asserted low. active-low RESET remains asserted for at least 100ms after VCC rises above the reset threshold and active-low MR is deasserted. The watchdog pulse output (active-low WDPO) utilizes an open-drain configuration. It can be triggered either by a fast timeout fault (watchdog input pulses are too close to each other) or a slow timeout fault (no watchdog input pulse is observed within the timeout period). The watchdog timeout is measured from the last falling edge of watchdog input (WDI) with a minimum pulse width of 300ns. Active-low WDPO is asserted for 1ms when a fault is observed. Eight laser-trimmed timeout periods are available. The MAX6323/MAX6324 are offered in a 6-pin SOT23 package and operate over the extended temperature range (-40°C to +125°C).

关键特性
  • Min/Max (Windowed) Watchdog, 8 Factory-Trimmed Timing Options
  • Pulsed Open-Drain, Active-Low Watchdog Output
  • Power-On Reset
  • Precision Monitoring of +2.5V, +3.0V, +3.3V, and +5.0V Power Supplies
  • Open-Drain or Push-Pull Active-Low RESET Outputs
  • Low-Power Operation (23µA typ)
  • Debounced Manual Reset Input
  • Guaranteed Reset Valid to VCC = +1.2V
MAX6323、MAX6324:典型工作电路
MAX6323、MAX6324:典型工作电路
应用
  • 汽车
  • 嵌入式控制系统
  • 工业
  • 医疗
数据手册DataSheet
语言下载文件备注
英文MAX6323-MAX6324.pdfRev 6; 02/2011
关键参数
Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureWatchdog TimeoutSupervisor FeaturesReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX6323
  • 2.5 to 3.3
  • 3.3 to 5.5
  • Active Low
  • Push-Pull
85ms to 300ms
  • Input/Output (WDI/WDO)
  • Windowed
  • 1s to 2s
  • <1s
  • >2s
  • Adjustable
Manual Reset1.545SOT/6$1.96 @1k
MAX6324
  • Active Low
  • Open Drain
SOT/6$1.83 @1k
技术资料
质量和环境数据
相关产品
  • MAX1232:微处理器监测器
  • MAX705:低成本、微处理器监控电路
  • MAX706:低成本、微处理器监控电路
  • MAX6318:5引脚微处理器监控电路,带有看门狗定时及手动复位
  • MAX6319:5引脚微处理器监控电路,带有看门狗定时及手动复位
  • MAX6317:5引脚微处理器监控电路,带有看门狗定时及手动复位
  • MAX6320:5引脚微处理器监控电路,带有看门狗定时及手动复位
  • MAX6316:5引脚微处理器监控电路,带有看门狗定时及手动复位
  • MAX6321:5引脚微处理器监控电路,带有看门狗定时及手动复位
  • MAX6322:5引脚微处理器监控电路,带有看门狗定时及手动复位
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX6323AUT23-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323AUT26-T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323AUT29+生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323AUT29+T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323AUT29-T停止供货MAX6323AUT29+TSOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323AUT31-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323AUT44-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323AUT46+生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323AUT46+T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323AUT46-T停止供货MAX6323AUT46+TSOT,;6引脚;9mm²-40°C至+125°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?
MAX6323BUT23+T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323BUT23-T停止供货MAX6323BUT23+TSOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323BUT26+T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323BUT26-T停止供货MAX6323BUT26+TSOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323BUT29-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323BUT31-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323BUT44-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323BUT46-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323CUT23-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323CUT26-T停止供货SOT,;6引脚;9mm²-40°C至+125°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?
MAX6323CUT29+生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323CUT29+T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323CUT29-T停止供货MAX6323CUT29+TSOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323CUT31-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323CUT44-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323CUT46+生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323CUT46+T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323CUT46-T停止供货MAX6323CUT46+TSOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323DUT23-T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323DUT26-T生产中SOT,;6引脚;9mm²-40°C至+125°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?
MAX6323DUT29+生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323DUT29+T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323DUT29-T停止供货MAX6323DUT29+TSOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323DUT31-T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323DUT44-T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323DUT46+T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323DUT46-T停止供货MAX6323DUT46+TSOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323EUT23-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323EUT26-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323EUT29+T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
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?
MAX6323EUT29-T停止供货MAX6323EUT29+TSOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323EUT31-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323EUT44-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323EUT46+T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323EUT46-T停止供货MAX6323EUT46+TSOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323FUT23+T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323FUT23-T停止供货MAX6323FUT23+TSOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323FUT26+T生产中SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:无铅
MAX6323FUT26-T停止供货MAX6323FUT26+TSOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323FUT29-T停止供货SOT,;6引脚;9mm²-40°C至+125°CRoHS/无铅:否
MAX6323-MAX6324.pdf MAX6324
Watchdogs Improve System Reliability—How to Choose the Right Part MAX6724
Windowed Watchdog Enhances µP Supervisors MAX6374
MAX6323.pdf MAX6323
典型工作电路 MAX6324