MAX700:Power-Supply Monitor with Reset

Power-On Reset + Manual Reset

The MAX700/MAX701/MAX702 are supervisory circuits used to monitor the power supplies in microprocessor (µP) and digital systems. The active-low RESET/RESET outputs of the MAX700/MAX701/MAX702 are guaranteed to be in the correct state for VCC voltages down to +1V (Figure 4). They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V-powered circuits. The MAX702 is the simplest part in the family. When VCC falls to 4.65V, active-low RESET goes low. The MAX702 also provides a debounced manual reset input. The MAX701 performs the same functions but has both active-low RESET and RESET outputs. Their primary function is to provide a system reset. Accordingly, an active reset signal is supplied for low supply voltages and for at least 200ms after the supply voltage reaches its operating value. In addition to the features of the MAX701 and MAX702, the MAX700 provides preset or adjustable voltage detection so thresholds other than 4.65V can be selected, and adjustable hysteresis. All parts are supplied in 8-pin PDIP and Narrow SO packages in commercial and extended temperature ranges.

Key Features
  • Min 200ms Active-Low RESET Pulse on Power-Up, Power-Down, and During Low-Voltage Conditions
  • Reset Threshold Factory Trimmed for +5V Systems
  • No External Components or Adjustments with +5V-Powered Circuits
  • Debounced Manual Reset Input
  • Preset or Adjustable Voltage Detection (MAX700)
  • Adjustable Hysteresis (MAX700)
  • 8-Pin PDIP and Narrow SO Packages
MAX700, MAX701, MAX702: Pin Configuration
MAX700, MAX701, MAX702: Pin Configuration
Applications/Uses
  • Computers
  • Controllers
  • Critical µP Power Monitoring
  • Intelligent Instruments
DataSheet
titleDownload file
MAX700-MAX702 Data SheetMAX700-MAX702.pdf
Parametrics
Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureSupervisor FeaturesReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX7001.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Active High
Active Low
Push-Pull
85ms to 300msNo WatchdogManual Reset2.5200PDIP(N)/8
SOIC(N)/8
$2.91 @1k
MAX7013.3 to 5.5Active High
Active Low
Push-Pull
PDIP(N)/8
SOIC(N)/8
$2.62 @1k
MAX7023.3 to 5.5Active Low
Push-Pull
PDIP(N)/8
SOIC(N)/8
$2.91 @1k
Quality and Environmental Data
Related Products
  • MAX809:3-Pin Microprocessor Reset Circuits
  • MAX810:3-Pin Microprocessor Reset Circuits
  • MAX811:4-Pin µP Voltage Monitors with Manual Reset Input
  • MAX812:4-Pin µP Voltage Monitors with Manual Reset Input
  • MAX6319:5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
  • MAX6321:5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
  • MAX6322:5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX700C/DNo Longer AvailableDICE SALES,;NA pin;DICE;0°C to +70°CSee data sheet
MAX700CPANo Longer AvailableMAX700CPA+PDIP(N),;8 pin;79.7 mm²0°C to +70°CNo
MAX700CPA+ActivePDIP(N),;8 pin;79.7 mm²0°C to +70°CLead Free
MAX700CSANo Longer AvailableMAX700CSA+SOIC(N),;8 pin;30.9 mm²0°C to +70°CNo
MAX700CSA+ActiveSOIC(N),;8 pin;30.9 mm²0°C to +70°CLead Free
MAX700CSA+TActiveSOIC(N),;8 pin;30.9 mm²0°C to +70°CLead Free
MAX700CSA-TNo Longer AvailableMAX700CSA+TN.SO;8 pin0°C to +70°CSee data sheet
MAX700EPANo Longer AvailableMAX700EPA+PDIP(N),;8 pin;79.7 mm²-40°C to +85°CNo
MAX700EPA+ActivePDIP(N),;8 pin;79.7 mm²-40°C to +85°CLead Free
MAX700ESANo Longer AvailableMAX700ESA+SOIC(N),;8 pin;30.9 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX700ESA+ActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
MAX700ESA+TActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
MAX700ESA-TNo Longer AvailableMAX700ESA+TSOIC(N),;8 pin;30.9 mm²-40°C to +85°CNo
MAX700-MAX702.pdf MAX702
MAX700.pdf MAX700
MAX700-MAX702.pdf MAX702