RE46C143SW16TF

RE46C143
CMOS Photoelectric Smoke Detector ASIC with Interconnect R&E International
Product Specification A Subsidiary of Microchip Technology Inc.
© 2009 Microchip Technology Inc. DS22178B-page 10
Timing Diagrams
Standby, No Alarm (not to scale)
Oscillator
T
POSC
T
PWOSC
Internal Clock
T
ON1
T
PER1
STROBE
T
ON2
IRED
T
PLED1
LED
Low Supply or Chamber Test Failure
LED
Low BatteryTest
T
HON3
Low BatteryWarning Chirp Low Battery Warning Chirp
Horn
T
HOF 3
Chamber Test and Warning is Offset from Low Battery Test and Warning by 21.5 Seconds
RE46C143
CMOS Photoelectric Smoke Detector ASIC with Interconnect R&E International
Product Specification A Subsidiary of Microchip Technology Inc.
© 2009 Microchip Technology Inc. DS22178B-page 11
Timing Diagrams (continued)
Local Alarm Timing (not to scale)
T
PER2
STROBE
IRED
T
PLED2
LED
Horn Timing
No Alar
m
Local or Remote Alarm No Alar
m
T
HON1
T
HOF1
Horn
Interconnect Timing
T
IODLY1
IO as Output
T
IOFILT
T
IODLY2
IO as Input
Notes:
1. Smoke is not sampled when the horn is active. Horn cycle is self completing in local alarm.
2. Low battery warning chirp is suppressed in local or remote alarm
3. IO Dump active only in local alarm, inactive if external alarm
RE46C143
CMOS Photoelectric Smoke Detector ASIC with Interconnect R&E International
Product Specification A Subsidiary of Microchip Technology Inc.
© 2009 Microchip Technology Inc. DS22178B-page 12
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®
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®
DSCs, KEELOQ
®
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RE46C143SW16TF

Mfr. #:
Manufacturer:
Description:
Smoke Detectors PHOTO SMOKE DET IC W/CONTINUOUS
Lifecycle:
New from this manufacturer.
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