RE46C143 Datasheet, PDF (10/12 Pages) Microchip Technology – CMOS Photoelectric Smoke Detector ASIC with Interconnect

RE46C143
CMOS Photoelectric Smoke Detector ASIC with Interconnect
Product Specification
R&E International
A Subsidiary of Microchip Technology Inc.
Timing Diagrams
Oscillator
Standby, No Alarm (not to scale)
T_POSC T_PWOSC
Internal Clock
T_ON1
T_PER1
STROBE
T_ON2
IRED
T_PLED1
LED
LED
Horn
Low Supply or Chamber Test Failure
Low BatteryTest
Low BatteryWarning Chirp
T_HON3
Low Battery Warning Chirp
T_HOF3
Chamber Test and Warning is Offset from Low Battery Test and Warning by 21.5 Seconds
© 2009 Microchip Technology Inc.
DS22178A-page 10