The RE46C143 is low power CMOS photoelectric type smoke detector IC. With minimal external components this circuit will provide all the required features for a photoelectric type smoke detector. The RE46C143 was designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217 and UL268

   Internal Power On Reset

   Low Quiescent Current Consumption

   Available in 16L PDIP or 16L N SOIC

   ESD Protection on all Pins

   Interconnect up to 40 Detectors

   Continuous Tone Horn Pattern

   Low Battery and Chamber Test

   Compatible with Motorola MC145010

   Available in Standard Packaging or RoHS Compliant Pb Free Packaging