Maxim > Products > Supervisors, Voltage Monitors, Sequencers > MAX698, MAX699

MAX698, MAX699

Low-Cost, Power-On Reset and Watchdog Controllers

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX698/MAX699 monitor the +5V supply in microprocessor (µP) and digital systems. They supply a active-low RESET pulse of at least 140ms duration on power-up, power-down, and during low-voltage brownout conditions. Circuit reliability is increased at reduced cost by eliminating all external components and adjustments.

The MAX699 includes all features of the MAX698, but also provides a watchdog input to monitor microprocessor activity. The active-low RESET output goes low if the watchdog input (WDI) is not toggled within 1 second. The watchdog feature can be disabled by leaving WDI open.

Both parts are supplied in 8-lead PDIP and 16-lead 0.3in wide small outline (SO) packages and are specified from 0°C to +70°C for C grade devices and -40°C to +85°C for E devices. The SO versions, with more pins than the 8-lead PDIP, have additional outputs not available in DIP packages. These are RESET (without inversion) and watchdog output (active-low WDO).

Data Sheet

Download	Rev 3	(PDF, 540kB)
E-Mail

Key Features

Precision Voltage Monitor
Power-OK/Reset Time Delay
Watchdog Timer
Minimum Component Count

Applications/Uses

Automotive Systems
Computers
Controllers
Critical µP Power Monitoring
Intelligent Instruments

Key Specifications:

Supervisors (1 Monitored Voltage)

Part Number

Reset Thresh.
(V)

Reset Out

t_RESET

Watchdog Feature

Watchdog Timeout

Reset Thresh. Accur.
(%)

I_CC
(µA)

Budgetary Price

min

@ +25°C

max

See Notes

MAX698

3.3 to 5.5

Active High

Active Low

Open Drain

Push-Pull

85ms to 300ms

No Watchdog

2.5

5000

$1.92 @1k

MAX699

Input (WDI)

Input/Output (WDI/WDO)

1s to 2s

$2.28 @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

Typical Operating Circuit

Product Guides

Microprocessor Supervisory (PDF)

Thermal Management (PDF)

Wireless (PDF)

Reliability Reports

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Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX698CPA			Active		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX698CPA+			Active		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX698CPA-4			Active	MAX698CPA	PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX698CWE			Active		SOIC(W);16 pin;111.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX698CWE+			Active		SOIC(W);16 pin;111.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX698CWE+T			Active		SOIC(W);16 pin;111.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX698CWE-T			Active		W.SO;16 pin Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX698EPA			Active		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX698EPA+			Active		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX698EWE			Active		SOIC(W);16 pin;111.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX698EWE+			Active		SOIC(W);16 pin;111.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX698EWE+T			Active		W.SO;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX698EWE-T			Active		W.SO;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX699CPA			Active		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX699CPA+			Active		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX699CWE			Active		SOIC(W);16 pin;111.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX699CWE+			Active		SOIC(W);16 pin;111.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX699CWE+T			Active		SOIC(W);16 pin;111.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX699CWE-T			Active		W.SO;16 pin Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX699EPA			Active		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX699EPA+			Active		PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX699EPA-4			Active	MAX699EPA	PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX699EWE			Active		SOIC(W);16 pin;111.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX699EWE+			Active		SOIC(W);16 pin;111.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX699EWE+T			Active		SOIC(W);16 pin;111.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX699EWE-T			Active		W.SO;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
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.
* 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

MAX699 includes watchdog timer

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See All Supervisors (1 Monitored Voltage) (274 Products)

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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 Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-2349 Rev 3; 2006-06-12
This page last modified: 2007-06-07