MAX691A

微处理器监控电路

工业标准、功能完备的µP监控电路


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说明

The MAX691A/MAX693A/MAX800L/MAX800M microprocessor (µP) supervisory circuits are pin-compatible upgrades to the MAX691, MAX693, and MAX695. They improve performance with 30µA supply current, 200ms typ reset active delay on power-up, and 6ns chip-enable propagation delay. Features include write protection of CMOS RAM or EEPROM, separate watchdog outputs, backup-battery switchover, and an active-low RESET output that is valid with VCC down to 1V. The MAX691A/MAX800L have a 4.65V typical reset-threshold voltage, and the MAX693A/MAX800M's reset threshold is 4.4V typical. The MAX800L/MAX800M guarantee power-fail accuracies to ±2%.
MAX691A、MAX693A、MAX800L、MAX800M:典型工作电路 MAX691A、MAX693A、MAX800L、MAX800M:典型工作电路 放大+

关键特性

  • 200ms Power-OK/Reset Timeout Period
  • 1µA Standby Current, 30µA Operating Current
  • On-Board Gating of Chip-Enable Signals, 10ns max Delay
  • MaxCap® or SuperCap Compatible
  • Guaranteed Active-Low RESET Assertion to VCC = +1V
  • Voltage Monitor for Power-Fail or Low-Battery Warning
  • Power-Fail Accuracy Guaranteed to ±2% (MAX800L/M)
  • Available in 16-Pin Narrow SO, Plastic DIP, and TSSOP Packages

应用

  • 计算机:台式机、工作站和服务器
  • 控制器
  • 精确的µP监控
  • 智能仪表

请查看具体的参数规格 Battery Backup Circuits (80)


Part NumberReset Thresh.
(V)
Reset OutICC
(µA)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
maxSee Notes
MAX691A 4.5 to 5.0
Active High
Active Low
Push-Pull
100
-55 to +125
-40 to +85
0 to +70
CDIP/16
DICE SALES
PDIP/16
SOIC (N)/16
SOIC (W)/16
TSSOP/16
$3.72 @1k
MAX693A 4.0 to 4.5
CDIP/16
PDIP/16
SOIC (N)/16
SOIC (W)/16
TSSOP/16
$3.47 @1k
MAX800 3.3 to 5.5
PDIP/16
SOIC (N)/16
TSSOP/16
$10.98 @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: MAX691A.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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