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MC146012 Datasheet Low Power CMOS Photoelectric Smoke Detector

Manufacturer: Freescale Semiconductor (now NXP Semiconductors)

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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.

Key Features

  • Integrated Mute Function (IMF) to Temporarily Disable Horn Alarm Memory to Help Identify Alarming Unit Speed-Up Sampling Rate After First Detection of Smoke Double Sample for Degraded Chamber Sensitivity Monitor Digital Noise Filter on the I/O Pin Power-Up and Power-Down RESET Low-Battery Trip Point Set Externally Temporal Horn Pattern Operating Temperature: -10 to 75°C Operating Voltage.

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