The RE46C145 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 RE46C145 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
• 10 Minute Timer for Sensitivity Control
• Temporal Horn Pattern
• Internal Low Battery and Chamber Test
• Compatible with Allegro A5366
• Alternate Diagnostic Mode
• Available in Standard Packaging or RoHS Compliant Pb Free Packaging