Features and Benefits

  • Small 8-Pin SOT23 Package
  • Precision Monitoring of +5.0V, +3.3V, +3.0V, +2.5V Supply Voltages
  • 140ms Reset Timeout Delay
  • Power-Fail Input with Independent Output; Monitor Inputs Down to 0.62V (MAX6704—MAX6708)
  • Dual Adjustable Reset Input for Triple-Voltage Monitoring (MAX6701(A)/MAX6702(A)/MAX6703(A))
  • 1.6s Watchdog Timeout Period (MAX6701(A)—MAX6707(A))
  • Independent Watchdog Output (MAX6701(A)/MAX6702(A)/MAX6703(A)/MAX6705(A)/MAX6706(A)/MAX6707(A))
  • Manual Reset Input
  • Four Reset Output Stage Options
    • Active Low Push-Pull (MAX6701(A), MAX6705(A))
    • Active Low Open Drain (MAX6703(A), MAX6707(A))
    • Active High Push-Pull (MAX6702(A), MAX6706(A))
    • Dual Active Low/High Push-Pull (MAX6704, MAX6708)
  • Guaranteed Reset Valid to VCC = 1V
  • Immune to Short Falling VCC Transients
  • Low Cost, Few External Components

Product Details

The MAX6701—MAX6708 microprocessor (µP) supervisory circuits reduce the complexity and components required to monitor power-supply functions in µP systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components.

The MAX6701—MAX6708 family provides four functions: a reset output during power-up, power-down, and brownout conditions; an independent watchdog output that goes low if the watchdog input has not been toggled within 1.6s; a 0.62V threshold detector for power-fail warning; and an active-low manual reset input.

The MAX6701—MAX6708 family offers several pinout options to accommodate a variety of multivoltage microprocessor supervision applications.

The MAX6701(A)/MAX6702(A)/MAX6703(A) monitor three supply voltages (one fixed threshold and two adjustable) to drive a single reset output and include a manual reset input and a watchdog timer with an independent output. The MAX6704 monitors a single-supply voltage to drive complementary reset outputs and includes an independent adjustable power-fail-in/power-fail-out comparator, a manual reset input, and a reset-based watchdog timer. The MAX6705(A)/MAX6706(A)/MAX6707(A) monitor a single-supply voltage to drive a single reset output and include an independent adjustable power-fail-in/power-fail-out comparator, a manual reset input, and a watchdog timer with an independent output. The MAX6708 is the same as the MAX6704 but without the watchdog timer function.

See the Detailed Description for differences between non-A and A versions.


  • Computers
  • Controllers
  • Critical µP Power Monitoring
  • Intelligent Instruments
  • Networking
  • Telecommunications
  • White Goods

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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