General Description
The RE46C122 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.

Features
• >1500V ESD Protection (HBM) on all Pins
• Guard Outputs for Ion Detector Input
• +/-0.75pA Detect Input Current
• Internal Reverse Battery Protection
• Low Quiescent Current Consumption (<6.5uA)
• Available in 16L PDIP or 16L N SOIC
• Internal Low Battery Detection
• Power Up Low Battery Test
• Interconnect up to 40 Detectors
• 10 Minute Timer for Sensitivity Control
• Compatible with Allegro A5367
• Available in Standard Packaging or RoHS Compliant Pb Free Packaging.