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MAX792, MAX792L, MAX792M, MAX792R, MAX792S, MAX792T, MAX820, MAX820L, MAX820M, MAX820R, MAX820S, MAX820T

Microprocessor and Nonvolatile Memory Supervisory Circuits

Microprocessor and Non-Volatile Memory Supervisory Circuits
 Overview   Technical Documents   Ordering Info   Related Products   User Comments (0)   All   


Status Explanations for product status codes

Active: In Production.

Description

The MAX792/MAX820 microprocessor (µP) supervisory circuits provide the most functions for power-supply and watchdog monitoring in systems without battery backup. Built-in features include the following:
  • µP reset: Assertion of RESET and active-low RESET outputs during power-up, power-down, and brownout conditions. Active-low RESET is guaranteed valid for VCC down to 1V.
  • Manual-reset input.
  • Two-stage power-fail warning: A separate low-line comparator compares VCC to a preset threshold 120mV above the reset threshold; the low-line and reset thresholds can be programmed externally.
  • Watchdog fault output: Assertion of active-low WDO if the watchdog input is not toggled within a preset timeout period.
  • Pulsed watchdog output: Advance warning of impending active-low WDO assertion from watchdog timeout that causes hardware shutdown.
  • Write protection of CMOS RAM, EEPROM, or other memory devices.
The MAX792 and MAX820 are identical, except the MAX820 guarantees higher low-line and reset threshold accuracy (±2%).
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 4 (PDF, 348kB)
Send this datasheet to any email addressE-Mail

Key Features

  • Manual-Reset Input
  • 200ms Power OK/Reset Time Delay
  • Independent Watchdog Timer-Preset or Adjustable
  • On-Board Gating of Chip-Enable Signals
  • Memory Write-Cycle Completion
  • 10ns (max) Chip-Enable Gate Propagation Delay
  • Voltage Monitor for Overvoltage Warning
  • ±2% Reset and Low-Line Threshold Accuracy (MAX820, external programming mode)
 

Applications/Uses

  • Computers: Desktop, Workstation, Server
  • Controllers
  • Critical µP Monitoring
  • Intelligent Instruments
   

Key Specifications:

Supervisors (1 Monitored Voltage)
Part Number Reset Thresh.
(V)		 Reset Out tRESET Watchdog Feature Watchdog Timeout Supervisor Features Reset Thresh. Accur.
(%)		 ICC
(µA)		 Budgetary Price
min @ +25°C max See Notes
MAX792 
2.5 to 3.3
3.3 to 5.5
Active High
Active Low
Push-Pull
 85ms to 300ms
Cap Adjustable
Input (WDI)
Input/Output (WDI/WDO)
1s to 2s
<1s
>2s
Adjustable
Manual Reset
Power Fail Comparator/Low Battery Detect
 2.5 150 $3.67 @1k
MAX820  $4.05 @1k
See All Supervisors (1 Monitored Voltage) (274)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

MAX792, MAX792L, MAX792M, MAX792R, MAX792S, MAX792T, MAX820, MAX820L, MAX820M, MAX820R, MAX820S, MAX820T: Typical Operating Circuit
Typical Operating Circuit

Product Guides

Microprocessor Supervisory (PDF)

Reliability Reports

Reliability Report: MAX792.pdf
Show FIT data for:
Request Reliability Report for:

Software/Models

none

Ordering Information

Filters: Part Number: Package: Temperature: Tape and Reel Sample
Devices: 1-50 / 152 <-- Previous  1 2 3 4   Next -->
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX792LC/D    
Active DICE SALES;NA pin;DICE;

Land Pattern: Not Applicable
Use pkgcode/variation: DICE*
See data sheet
MAX792LCPE  
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16-1*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX792LCPE+  
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX792LCSE  
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX792LCSE+  
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX792LCSE+T    
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX792LCSE-T    
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX792LEJE    
Active CDIP(N);16 pin;173.5 mm²
Outline Drawing:21-0045 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: J16-3*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX792LEPE    
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX792LEPE+  
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX792LESE    
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16-3*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX792LESE+  
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16+3*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX792LESE+T    
Active N.SO;16 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX792LESE-T    
Active N.SO;16 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX792LMJE    
Active CDIP(N);16 pin;173.5 mm²
Outline Drawing:21-0045 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: J16-3*
-55°C to +125°C RoHS/Lead-Free: No
Materials Analysis
MAX792MC/D    
Active DICE SALES;NA pin;DICE;

Land Pattern: Not Applicable
Use pkgcode/variation: DICE*
See data sheet
MAX792MCPE    
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16-1*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX792MCPE+  
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX792MCSE    
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX792MCSE+  
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX792MCSE+T    
Active N.SO;16 pin

Land Pattern: Not Available

0°C to +70°C See data sheet
MAX792MCSE-T    
Active N.SO;16 pin

Land Pattern: Not Available

0°C to +70°C See data sheet
MAX792MEJE    
Active CDIP(N);16 pin;173.5 mm²
Outline Drawing:21-0045 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: J16-3*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX792MEPE    
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX792MEPE+  
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX792MESE    
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16-3*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX792MESE+  
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16+3*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX792MESE+T    
Active N.SO;16 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX792MESE-T    
Active N.SO;16 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX792MMJE    
Active CDIP(N);16 pin;173.5 mm²
Outline Drawing:21-0045 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: J16-3*
-55°C to +125°C RoHS/Lead-Free: No
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX792RC/D    
Active DICE SALES;NA pin;DICE;

Land Pattern: Not Applicable
Use pkgcode/variation: DICE*
See data sheet
MAX792RCPE    
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16-1*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX792RCPE+  
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX792RCSE    
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX792RCSE+  
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX792RCSE+T    
Active N.SO;16 pin

Land Pattern: Not Available

0°C to +70°C See data sheet
MAX792RCSE-T    
Active N.SO;16 pin

Land Pattern: Not Available

0°C to +70°C See data sheet
MAX792REJE    
Active CDIP(N);16 pin;173.5 mm²
Outline Drawing:21-0045 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: J16-3*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX792REPE    
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX792REPE+  
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX792RESE    
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16-3*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX792RESE+  
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16+3*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX792RESE+T    
Active N.SO;16 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX792RESE-T    
Active N.SO;16 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX792RMJE    
Active CDIP(N);16 pin;173.5 mm²
Outline Drawing:21-0045 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: J16-3*
-55°C to +125°C RoHS/Lead-Free: No
Materials Analysis
MAX792SC/D    
Active DICE SALES;NA pin;DICE;

Land Pattern: Not Applicable
Use pkgcode/variation: DICE*
See data sheet
MAX792SCPE    
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16-1*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX792SCPE+  
Active PDIP(N);16 pin;158.4 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P16+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX792SCSE  
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX792SCSE+  
Active SOIC(N);16 pin;62 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
Devices: 1-50 / 152 <-- Previous  1 2 3 4   Next -->

Notes:
  1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
  2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
  3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
  4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Notes and Comments

Guarantee low line and reset threshold accuracies to ±2%. (MAX820)

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Information Index

Overview

  

Technical Documents

  

Ordering Info

  

Related Products

  
Description
Key Features
Applications/Uses
Key Specifications
Diagram
Notes and Comments
  Data Sheet
Application Notes
Evaluation Kits
Product Guides
Reliability Reports
Software/Models
  Price and Availability
Samples
Buy Online
Package Information
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Document Ref.: 19-0147 Rev 4; 2006-03-14
This page last modified: 2007-05-31

 


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