ENGLISH • 简体中文 • 日本語 • 한국어  

    Login | Register 


   
 
Enter keywords or part number    


What's New Products Solutions Design AppNotes Support Sales About Us Members

Maxim > Products > [Supervisors, Voltage Monitors, Sequencers] 
MAX814, MAX815, MAX816
±1% Accuracy, Low-Power, +3V and +5V µP Supervisory Circuits

1% Accurate Microprocessor Supervisory ICs


  QuickView     Technical Documents     Ordering Info     More Information     User Comments (0)     All  
Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 532kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail
The MAX814/MAX815/MAX816 are high-accuracy microprocessor (µP) supervisory circuits that provide power-on reset, watchdog, and power-fail functions. They eliminate manual trimming and improve reliability in critical applications needing high-accuracy reset thresholds. The active-low RESET output is guaranteed to be in the correct state for VCC down to 1V. The reset comparator is designed to ignore fast transients on VCC. Reset thresholds are available for operation with a variety of 3V and 5V supply voltages.

A 75µA maximum supply current makes the MAX814/MAX815/MAX816 ideal for use in portable equipment. All three devices are available in 8-pin DIP and SO packages. See the Selector Table below for a review of features.

Key Features   Applications/Uses
  • ±1% Worst-Case Reset Threshold Accuracy
  • 4.8V, 4.7V, 4.55V, 3.03V, or Adjustable Reset Thresholds
  • ±1% Low-Line Threshold Accuracy (MAX814) 60mV Above Reset Threshold
  • 200ms Reset Time Delay
  • Active-Low RESET Output
  • Active-High RESET Output (MAX814/MAX816)
  • 75µA Max Supply Current
  • Guaranteed active-low RESET Valid to VCC = 1V
  • Manual Reset Input
  • ±2% Power-Fail Comparator
  • Independent Watchdog with 1.56sec Timeout (MAX815)
  • Power-Supply Glitch Immunity
  • 8-Pin SO and DIP Packages

 
  		• Controllers
  		• Critical µP Monitoring
  		• Intelligent Instruments
  		• Medical Equipment
  		• Portable Battery-Powered Equipment
  		• Set-Top Boxes

    Key Specifications:  Supervisors (1 Monitored Voltage)
    Part Number Reset Thresh.
    (V)    		 Reset Out Reset Out tRESET Watchdog Feature Watchdog Timeout Supervisor Features Reset Thresh. Accur.
    (%)    		 ICC
    (µA)    		 Price
    Active Low Active High min @ +25°C max See Notes
    MAX814 
    2.5 to 3.3
    3.3 to 5.5
    		 Push-Pull Push-Pull 85ms to 300ms No Watchdog -
    Adjustable Reset Input
    Manual Reset
    Power Fail Comparator/Low Battery Detect
    		 1 75 $4.39 @1k
    MAX815 
    2.5 to 3.3
    3.3 to 5.5
    		 -
    Input (WDI)
    Input/Output (WDI/WDO)
    		 1s to 2s $4.74 @1k
    MAX816 
    1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
    		 Push-Pull No Watchdog - $4.39 @1k
    See All Supervisors (1 Monitored Voltage) (274)

    Diagram
    MAX814, MAX815, MAX816: Typical Application Circuits
    Typical Application Circuits

    Didn't Find What You Need?
  • Next Day Product Selection Assistance from Applications Engineers
  • Parametric Search
  • Applications Help

    •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

    		 Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

    		 Price and Availability 
     Samples 
     Buy Online 
     Package Information 
     Lead-Free Information 

    		 Related Products 
     Notes and Comments 
     Evaluation Kits 

    Document Ref.: 19-0412; Rev 1; 2006-09-28
    This page last modified: 2009-08-17


            •         •         •     Privacy Policy     •     Legal Notices

        Copyright © 2009 by Maxim Integrated Products