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Maxim > Products > Supervisors, Voltage Monitors, Sequencers 
MAX6301, MAX6302, MAX6303, MAX6304
+5V, Low-Power, µP Supervisory Circuits with Adjustable Reset/Watchdog


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Data Sheet
FULL DATA SHEET (PDF, 208kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX6301–MAX6304* low-power microprocessor (µP) supervisory circuits provide maximum adjustability for reset and watchdog functions. The reset threshold can be adjusted to any voltage above 1.22V, using external resistors. In addition, the reset and watchdog timeout periods are adjustable using external capacitors. A watchdog select pin extends the watchdog timeout period to 500x. The reset function features immunity to power-supply transients.

These four devices differ only in the structure of their reset outputs (see the Selector Guide in the full data sheet). The MAX6301–MAX6304 are available in the space-saving 8-pin µMAX® package, as well as 8-pin PDIP and SO packages.

Key Features   Applications/Uses
  • Adjustable Reset Threshold
  • Adjustable Reset Timeout
  • Adjustable Watchdog Timeout
  • 500x Watchdog Timeout Multiplier
  • 4µA Supply Current
  • RESET or Active-Low RESET Output Options
  • Push-Pull or Open-Drain Output Options
  • Guaranteed Active-Low RESET Asserted At or Above VCC = 1V (MAX6301/MAX6303)
  • Power-Supply Transient Immunity
  • Watchdog Function can be Disabled
  • PDIP/SO/µMAX Packages Available

 
  		• Battery-Powered Computers/Controllers
  		• Computers: Desktop, Workstation, Server
  		• Critical µP Monitoring
  		• Embedded Controllers
  		• Intelligent Instruments
  		• Medical Equipment
  		• Portable Equipment
  		• Set-Top Boxes

    Key Specifications:   Supervisors (1 Monitored Voltage)
    Part Number Reset Threshold Range (V) Active-Low Reset Output Active-High Reset Output Min. Reset Timeout Range Watchdog Feature Nom. Watchdog Timeout Range Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) RoHS Available Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C) Price**
    MAX6301  1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5     		Open Drain  -  15ms to 85ms
    1ms to 15ms
    300ms to 1s
    85ms to 300ms
    <1ms
    >1s
    Adjustable     		Input (WDI)
    Cap Adjustable     		1s to 2s
    <1s
    >2s
    Adjustable     		2 7 Yes PDIP/8
    SOIC/8
    uMAX/8     		16 -40 to +85
    0 to +70     		$1.51 @ 1k
    MAX6302   -  Open Drain $1.51 @ 1k
    MAX6303  Push-Pull  -  $1.51 @ 1k
    MAX6304   -  Push-Pull $1.51 @ 1k
    See All Supervisors (1 Monitored Voltage) (268)
    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.

    *Patents pending

    Diagram
    MAX6301, MAX6302, MAX6303, MAX6304: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 1118: Manually Operated Digital Potentiometer Doesn't Need a Microprocessor - MAX6302
  		• Application Note 1133: Multiple Voltage Systems Need Supply-Voltage Sequencing - MAX6301
  		• Application Note 1212: Pulsed Sensor Extends Battery Life - MAX6304
  		• Application Note 1926: Watchdogs Improve System Reliability—How to Choose the Right Part - MAX6301, MAX6304

    Evaluation Kits
    none

    Design Guides
  		• MICROPROCESSOR SUPERVISORY (PDF)
  		• D/A CONVERTERS (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• Reliability Report: MAX6301xxA.pdf
  		• Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    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. More: SeeFull Data Sheet or Part 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.


    Devices: 1-59 of 59

    MAX6301 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX6301EPA+  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6301CPA  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6301CPA+  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6301EPA  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6301CSA-T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6301CSA  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6301CSA+T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6301CSA+  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6301ESA+  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6301ESA+T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6301ESA-T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6301ESA  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6301CUA+T  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6301CUA+  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6301CUA  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6301CUA-T  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6302 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX6302EPA+  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6302CPA+  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6302CPA  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6302EPA  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6302CSA  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6302CSA-T  



    		0°C to +70°C See data sheet
    MAX6302ESA-T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6302ESA  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6302CUA+T  



    		0°C to +70°C See data sheet
    MAX6302CUA+  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6302CUA  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6302CUA-T  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6303 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX6303CPA  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6303CPA+  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6303EPA  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6303CSA+  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6303CSA+T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6303CSA-T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6303CSA  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6303ESA+T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6303ESA+  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6303ESA  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6303ESA-T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6303CUA  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6303CUA-T  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6303CUA+T  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6303CUA+  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6304 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX6304EPA+  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6304CPA  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6304CPA+  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6304EPA  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6304ESA+T  



    		-40°C to +85°C See data sheet
    MAX6304ESA+  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6304CSA  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6304CSA-T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6304CSA+T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6304CSA+  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6304ESA  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6304ESA-T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6304CUA+  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6304CUA+T  



    		0°C to +70°C See data sheet
    MAX6304CUA  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6304CUA-T  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis

    Related Products
    MAX6316, MAX6316M, MAX6317, MAX6318, MAX6319, MAX6320, MAX6321, MAX6322 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
    MAX6351, MAX6352, MAX6353, MAX6354, MAX6355, MAX6356, MAX6357, MAX6358, MAX6359, MAX6360 Dual/Triple-Voltage µP Supervisory Circuits

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     Description 
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     Diagram 

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     Engineering Journals 
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    Document Ref.: 19-1078; Rev 2; 2007-05-02
    This page last modified: 2007-06-01




             


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