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MC145012

Part Number	MC145012
Manufacturer	Freescale Semiconductor
Description	Photoelectric Smoke Detector IC
Published	Nov 29, 2017
Detailed Description	Freescale Semiconductor Technical Data Photoelectric Smoke Detector IC with I/O and Temporal Pattern Horn Driver The C...
Datasheet	MC145012 PDF File

Overview

Freescale Semiconductor Technical Data Photoelectric Smoke Detector IC with I/O and Temporal Pattern Horn Driver The CMOS MC145012 is an advanced smoke detector component containing sophisticated very-low-power analog and digital circuitry.
The IC is used with an infrared photoelectric chamber.
Detection is accomplished by sensing scattered light from minute smoke particles or other aerosols.
When detection occurs, a pulsating alarm is sounded via on-chip push-pull drivers and an external piezoelectric transducer.
The variable-gain photo amplifier allows direct interface to IR detectors (photodiodes).
Two external capacitors, C1 and C2, C1 being the larger, determine the gain settings.
Low...

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