Datasheet Microchip RE46C143S16TF

R&E International
A Subsidiary of Microchip Technology Inc. RE46C143
CMOS Photoelectric Smoke Detector ASIC with Interconnect
Product Specification General Description Features 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 design incorporates a gain selectable photo
amplifier for use with an infrared emitter/detector pair.
An internal oscillator strobes power to the smoke
detection circuitry for 100us every 8.1 seconds to keep
standby current to a minimum. If smoke is sensed the
detection rate is increased to verify an alarm condition.
A high gain mode is available for push button chamber
testing. Internal Power On Reset
Low Quiescent Current Consumption
Available in 16L PDIP, 16L N SOIC or 16L W SOIC
ESD Protection on all Pins
Interconnect up to 40 Detectors
75% Duty Cycle Horn Pattern
Low Battery and Chamber Test
Compatible with Motorola MC145010
UL Recognized per File S24036
Available in Standard Packaging or RoHS …