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MC146012

Part Number	MC146012
Manufacturer	Freescale Semiconductor
Description	Low Power CMOS Photoelectric Smoke Detector
Published	Jun 30, 2006
Detailed Description	www.DataSheet4U.com Freescale Semiconductor Technical Data Document Number: MC146012 Rev 0, 09/2005 Low Power CMOS Ph...
Datasheet	MC146012 PDF File

Overview

www.
DataSheet4U.
com Freescale Semiconductor Technical Data Document Number: MC146012 Rev 0, 09/2005 Low Power CMOS Photoelectric Smoke Detector IC The MC146012 is an advanced smoke detector component containing sophisticated very-low power analog and digital circuitry.
The IC, when used with an infrared photoelectric chamber and a small number of external components, will detect smoke by sensing scattered light from smoke particles.
When detection occurs, a pulsating alarm is sounded via on-chip push-pull drivers and an external piezoelectric transducer.
The MC146012 provides both audible and visual alarms.
Upon sensing a normal smoke level, both alarms will be activated.
It is possible to mute the audible alarm for approximately eight minutes through the Integrated Mute Function (IMF), although the LED will continue to flash at a high rate.
This feature is resetable through a pushbutton test.
The IMF feature will be overridden by remote smoke, high smoke level, timeout or reset.
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