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微处理器监控电路

工业标准、功能完备的µP监控电路

产品详情

主要特征

Parametric specs for Battery Backup Circuits
Reset Thresh. (V) 4.5 to 5.0
Reset Out Active High
Active Low
Push-Pull
ICC (µA) (max) 100
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Package/Pins CDIP/16
PDIP/16
SOIC (N)/16
SOIC (W)/16
TSSOP/16
Budgetary
Price (See Notes)
3.94
缩小

简化框图

Technical Docs

数据资料 微处理器监控电路 Jun 08, 2018

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参量

Parametric specs for Battery Backup Circuits
Reset Thresh. (V) 4.5 to 5.0
Reset Out Active High
Active Low
Push-Pull
ICC (µA) (max) 100
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Package/Pins CDIP/16
PDIP/16
SOIC (N)/16
SOIC (W)/16
TSSOP/16
Budgetary
Price (See Notes)
3.94
Parametric specs for Battery Backup Circuits
Reset Thresh. (V) 4.5 to 5.0
Reset Out Active High
Active Low
Push-Pull
ICC (µA) (max) 100
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Package/Pins CDIP/16
PDIP/16
SOIC (N)/16
SOIC (W)/16
TSSOP/16
Budgetary
Price (See Notes)
3.94

主要特征

  • 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/用途

  • 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

描述

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%.

简化框图

MAX691A、MAX693A、MAX800L、MAX800M:典型工作电路 MAX691A、MAX693A、MAX800L、MAX800M:典型工作电路 Zoom icon

Technical Docs

数据资料 微处理器监控电路 Jun 08, 2018

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心