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MAX793S
电源管理 电路监控、电压监测器及排序器 MAX793S
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MAX793S

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3.0V/3.3V可调、微处理器监控电路

功能完备的电池备份IC，用于3V/3.3V系统

可打印的数据手册 订阅

产品详情

请参见参数规范 Battery Backup Circuits

主要特征

应用/用途

请参见参数规范 Battery Backup Circuits
Parametric specs for Battery Backup Circuits
Reset Thresh. (V) 2.5 to 3.3
Reset Out Active High
Active Low
Open Drain
Push-Pull
ICC (µA) (max) 60
Oper. Temp. (°C) -40 to +85
0 to +70
Package/Pins PDIP/16
SOIC (N)/16
Budgetary
Price (See Notes) 		4.96
请参见参数规范 Battery Backup Circuits
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简化框图

技术文档

数据资料 3.0V/3.3V可调、微处理器监控电路 Mar 29, 2010

支持和培训

在Maxim的知识库中搜索技术问题的答案

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参量

Parametric specs for Battery Backup Circuits
Reset Thresh. (V) 2.5 to 3.3
Reset Out Active High
Active Low
Open Drain
Push-Pull
ICC (µA) (max) 60
Oper. Temp. (°C) -40 to +85
0 to +70
Package/Pins PDIP/16
SOIC (N)/16
Budgetary
Price (See Notes) 		4.96
See parametric specs for Battery Backup Circuits

主要特征

MAX793/MAX794/MAX795
  • Precision Supply-Voltage Monitor:
    • Fixed Reset Trip Voltage (MAX793/MAX795)
    • Adjustable Reset Trip Voltage (MAX794)
  • Guaranteed Reset Assertion to VCC = 1V
  • Backup-Battery Power Switching—Battery Voltage Can Exceed VCC
  • On-Board Gating of Chip-Enable Signals—7ns Max Propagation Delay
MAX793/MAX794 Only
  • Battery Freshness Seal
  • Battery OK Output (MAX793)
  • Uncommitted Voltage Monitor for Power-Fail or Low-Battery Warning
  • Independent Watchdog Timer (1.6s timeout)
  • Manual Reset Input

应用/用途

  • 电池供电计算机/控制器
  • 精确的µP电源监控
  • 嵌入式控制器
  • 智能控制器
  • 便携式设备

描述

The MAX793/MAX794/MAX795 microprocessor (µP) supervisory circuits monitor and control the activities of +3.0V/+3.3V µPs by providing backup-battery switchover, among other features such as low-line indication, µP reset, write protection for CMOS RAM, and a watchdog (see the Selector Guide in the full data sheet). The backup-battery voltage can exceed VCC, permitting the use of 3.6V lithium batteries in systems using 3.0V to 3.3V for VCC.

The MAX793/MAX795 offer a choice of reset threshold voltage range (denoted by suffix letter): 3.00V to 3.15V (T), 2.85V to 3.00V (S), and 2.55V to 2.70V (R). The MAX794's reset threshold is set externally with a resistor divider. The MAX793/MAX794 are available in 16-pin DIP and narrow SO packages, and the MAX795 comes in 8-pin DIP and SO packages.

简化框图

MAX793、MAX793R、MAX793S、MAX793T、MAX794、MAX795、MAX795R、MAX795S、MAX795T：典型工作电路 MAX793、MAX793R、MAX793S、MAX793T、MAX794、MAX795、MAX795R、MAX795S、MAX795T：典型工作电路 Zoom icon

技术文档

数据资料 3.0V/3.3V可调、微处理器监控电路 Mar 29, 2010

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 。