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Datasheet Microchip RE46C126E16F

Part NumberRE46C126E16F

The RE46C126 is low power CMOS ionization type smoke detector IC


  • Download » Datasheet PDF, 215 Kb, Revision: 10-19-2009
    CMOS Ionization Smoke Detector ASIC with Interconnect
    Docket ↓
    R&E International
    A Subsidiary of Microchip Technology Inc. RE46C126
    CMOS Ionization Smoke Detector ASIC with Interconnect
    Product Specification General Description Features The RE46C126 is low power CMOS ionization type
    smoke detector IC. With few external components this
    circuit will provide all the required features for an
    ionization type smoke detector. An internal oscillator strobes power to the smoke
    detection circuitry for 10.5mS every 1.66 seconds to
    keep standby current to a minimum. A check for a low
    battery condition is performed every 40 seconds when
    in standby. A 2/3 duty cycle continuous horn pattern is
    used for the alarm condition.
    An interconnect pin allows multiple detectors to be
    connected such that when one unit alarms all units will
    sound. Guard Outputs for Ion Detector Input
    +/-0.75pA Detect Input Current
    Internal Reverse Battery Protection
    Internal Low Battery Detection
    Low Quiescent Current Consumption (<6.5uA)
    Available in 16L PDIP or 16L N SOIC
    ESD Protection on all Pins
    Interconnect up to 40 Detectors
    Compatible with MC14468 ...



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




Alarm InterconnectYes
Horn Driver Alarm PatternContinuous Tone
Low Battery DetectYes
Operating Temperature-10 to 60 °C
Operating Temperature Range-10 to +60 °C
Powerup Low Battery TestNo
Reverse Battery ProtectionYes
Sensitivity TimerNo

Eco Plan


Moldel Line

Series: RE46C126 (1)
  • RE46C126E16F

Manufacturer's Classification

  • CO and Smoke Detection > CO and Smoke Detector ICs > Ionization Smoke Detector ICs
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