Datasheet Microchip RE46C140S16F

R&E International
A Subsidiary of Microchip Technology Inc. RE46C140
CMOS Photoelectric Smoke Detector ASIC with Interconnect and Timer Mode
Product Specification General Description Features The RE46C140 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 10 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
10 Minute Timer for Sensitivity Control
Temporal Horn Pattern
Internal Low Battery and Chamber Test
Compatible with Allegro A5366
UL Recognized per File S24036 …