Maxim Integrated DS1231S-20N
- Part Number:
- DS1231S-20N
- Manufacturer:
- Maxim Integrated
- Ventron No:
- 3270536-DS1231S-20N
- Description:
- IC POWER MONITOR 20NS 16-SOIC
- Datasheet:
- DS1231S-20N
Description
The DS1231 Power Monitor Chip is a precise temperature-compensated reference circuit that provides an orderly shutdown and automatic restart of a processor-based system. It monitors high voltage inputs to power supply regulators to generate a warning signal of an impending power failure well before regulated DC voltages go out of specification. The time for processor shutdown is directly proportional to the available hold-up time of the power supply. Just before the hold-up time is exhausted, the Power Monitor unconditionally halts the processor to prevent spurious cycles by enabling Reset as Vcc falls below a selectable 5 or 10 percent threshold. When power returns, the processor is held inactive until well after power conditions have stabilized, safeguarding any nonvolatile memory in the system from inadvertent data changes.
Features
Warns processor of an impending power failure
Provides time for an orderly shutdown
Prevents processor from destroying nonvolatile memory during power transients
Automatically restarts processor after power is restored
Suitable for linear or switching power supplies
Accurate 5% or 10% Vcc monitoring
Replaces power-up reset circuitry
No external capacitors required
Optional 16-pin SOIC surface mount package
Applications
Processor-based systems
Power supply monitoring
Power failure detection
Nonvolatile memory protection
System reset
The DS1231 Power Monitor Chip is a precise temperature-compensated reference circuit that provides an orderly shutdown and automatic restart of a processor-based system. It monitors high voltage inputs to power supply regulators to generate a warning signal of an impending power failure well before regulated DC voltages go out of specification. The time for processor shutdown is directly proportional to the available hold-up time of the power supply. Just before the hold-up time is exhausted, the Power Monitor unconditionally halts the processor to prevent spurious cycles by enabling Reset as Vcc falls below a selectable 5 or 10 percent threshold. When power returns, the processor is held inactive until well after power conditions have stabilized, safeguarding any nonvolatile memory in the system from inadvertent data changes.
Features
Warns processor of an impending power failure
Provides time for an orderly shutdown
Prevents processor from destroying nonvolatile memory during power transients
Automatically restarts processor after power is restored
Suitable for linear or switching power supplies
Accurate 5% or 10% Vcc monitoring
Replaces power-up reset circuitry
No external capacitors required
Optional 16-pin SOIC surface mount package
Applications
Processor-based systems
Power supply monitoring
Power failure detection
Nonvolatile memory protection
System reset
Maxim Integrated DS1231S-20N technical specifications, attributes, parameters and parts with similar specifications to Maxim Integrated DS1231S-20N .
- Factory Lead Time6 Weeks
- Lifecycle StatusPRODUCTION (Last Updated: 1 month ago)
- Mounting TypeSurface Mount
- Package / Case16-SOIC (0.295, 7.50mm Width)
- Surface MountYES
- Number of Pins16
- Operating Temperature-40°C~85°C TA
- PackagingTube
- Published1998
- JESD-609 Codee3
- Pbfree Codeyes
- Part StatusActive
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations16
- ECCN CodeEAR99
- Terminal FinishTIN
- Terminal PositionDUAL
- Terminal FormGULL WING
- Peak Reflow Temperature (Cel)260
- Number of Functions1
- Supply Voltage5V
- Reflow Temperature-Max (s)NOT SPECIFIED
- Base Part NumberDS1231
- OutputOpen Drain or Open Collector
- Pin Count16
- Qualification StatusNot Qualified
- Supply Voltage-Max (Vsup)5.5V
- Supply Voltage-Min (Vsup)4.5V
- Number of Channels1
- Adjustable ThresholdNO
- ResetActive High/Active Low
- Voltage - Threshold4.37V 4.62V
- Number of Voltages Monitored1
- Reset Timeout150ms Minimum
- Height Seated (Max)2.65mm
- Width7.5mm
- RoHS StatusROHS3 Compliant
The three parts on the right have similar specifications to DS1231S-20N .
-
ImagePart NumberManufacturerFactory Lead TimeLifecycle StatusMounting TypePackage / CaseSurface MountNumber of PinsOperating TemperaturePackagingPublishedJESD-609 CodePbfree CodePart StatusMoisture Sensitivity Level (MSL)Number of TerminationsECCN CodeTerminal FinishTerminal PositionTerminal FormPeak Reflow Temperature (Cel)Number of FunctionsSupply VoltageReflow Temperature-Max (s)Base Part NumberOutputPin CountQualification StatusSupply Voltage-Max (Vsup)Supply Voltage-Min (Vsup)Number of ChannelsAdjustable ThresholdResetVoltage - ThresholdNumber of Voltages MonitoredReset TimeoutHeight Seated (Max)WidthRoHS StatusMountTerminal PitchOutput VoltageOperating Supply VoltageMax Supply VoltageMin Supply VoltageOperating Supply CurrentMax Supply CurrentWatchdog TimerMin Reset Threshold VoltageMax Reset Threshold VoltageUndervoltage ThresholdOvervoltage ThresholdLengthREACH SVHCLead FreeTime@Peak Reflow Temperature-Max (s)JESD-30 CodeView Compare
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DS1231S-20N6 WeeksPRODUCTION (Last Updated: 1 month ago)Surface Mount16-SOIC (0.295, 7.50mm Width)YES16-40°C~85°C TATube1998e3yesActive1 (Unlimited)16EAR99TINDUALGULL WING26015VNOT SPECIFIEDDS1231Open Drain or Open Collector16Not Qualified5.5V4.5V1NOActive High/Active Low4.37V 4.62V1150ms Minimum2.65mm7.5mmROHS3 Compliant-------------------
-
6 Weeks-Through Hole8-DIP (0.300, 7.62mm)-8-40°C~85°C TATube1998e3yesActive1 (Unlimited)8EAR99Matte Tin (Sn)DUAL-26015V-DS1231Open Drain or Open Collector8---1NOActive High/Active Low4.37V 4.62V1150ms Minimum4.572mm7.62mmROHS3 CompliantThrough Hole2.54mm4.9V5V5.5V4.5V500μA2mANo4.5V4.74V3.3V4.74V9.375mmUnknownContains Lead--
-
--Through Hole8-DIP (0.300, 7.62mm)NO--40°C~85°C TATube-e0noObsolete1 (Unlimited)8-TIN LEADDUAL-24015V--Open Drain or Open Collector8COMMERCIAL5.5V4.5V1NOActive High/Active Low4.37V 4.62V1150ms Minimum4.572mm7.62mmNon-RoHS Compliant-2.54mm-----------9.375mm--20R-PDIP-T8
-
--Through Hole8-DIP (0.300, 7.62mm)NO-0°C~70°C TATube-e0noObsolete1 (Unlimited)8-TIN LEADDUAL-24015V--Open Drain or Open Collector8COMMERCIAL5.5V4.5V1NOActive High/Active Low4.37V 4.62V1150ms Minimum4.572mm7.62mmNon-RoHS Compliant-2.54mm-----------9.375mm--20R-PDIP-T8
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