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Datasheet Microchip MIC1832


The MIC1832 is a multifunction circuit which monitors microprocessor activity, external reset and power supplies in microprocessor based systems


  • Download » Datasheet, PDF, 178 Kb, Revision: 11-05-2015
    MIC1832 - 3.3V Voltage Supervisor w/ Man Reset, Watchdog Timer & Dual Reset Outp
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    3.3V Voltage Supervisor with Manual Reset,
    Watchdog Timer and Dual Reset Outputs General Description Features The MIC1832 is a low-current microprocessor supervisor
    for monitoring 3.3V and 3V systems. The device features
    logic-selectable (TOL) reset thresholds of 10% or 20% of
    3.3V; a pushbutton reset input; a watchdog timer with
    three-state selectable (TD) timeout periods of 150ms,
    600ms, or 1.2s; a fixed reset timeout period of 250ms
    (min); and active-low open-drain reset (/RST) and activehigh push-pull reset (RST) outputs. The /RST output
    maintains a valid reset condition for VCC as low as 1.4V.
    The MIC1832 asserts a reset condition if the supply
    voltage drops below the reset threshold, the pushbutton
    reset is asserted low, or the watchdog timer does not see
    a high-to-low transition on the watchdog timer input within
    the watchdog timer period. A reset condition is held for the
    reset timeout period of 250ms (min) after the pushbutton
    input is released, after the supply voltage increases above
    the reset threshold voltage, or after the watchdog has
    initiated a reset.
    The MIC1832 is a drop-in replacement for the DS1832. It
    operates over the –40°C to +85°C temperature range and
    is available in Pb-Free 8-pin SOIC and PDIP packages.
    Data sheets and support documentation can be found on ...



Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)




Manual ResetYesYesYes
Nominal Reset Voltage, V2.55, 2.882.55, 2.882.55, 2.88
Operating Temp. Range, °C-40 to 85-40 to 85-40 to 85
Operating Temperature Range, °C-40 to +85-40 to +85-40 to +85
Power FailNoNoNo
Product TypeSupervisorSupervisorSupervisor
Reset TypeActive Low/High or High/LowActive Low/High or High/LowActive Low/High or High/Low
Typical Reset Pulse Width, ms250250250
Typical Supply Current, µA151515
VCC Range, V1.4 - 5.51.4 - 5.51.4 - 5.5
Watchdog TimerYesYesYes

Eco Plan


Moldel Line

Series: MIC1832 (3)

Manufacturer's Classification

  • Power Management > Voltage Detectors

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