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RE46C168

Microchip Technology
Part Number RE46C168
Manufacturer Microchip Technology
Description CMOS Photoelectric Smoke Detector ASIC
Published Aug 14, 2010
Detailed Description RE46C165/6/7/8 CMOS Photoelectric Smoke Detector ASIC with Interconnect, Timer Mode and Alarm Memory Features • Tempora...
Datasheet PDF File RE46C168 PDF File

RE46C168
RE46C168

Overview
RE46C165/6/7/8 CMOS Photoelectric Smoke Detector ASIC with Interconnect, Timer Mode and Alarm Memory Features • Temporal Horn Pattern or Continuous Tone • Alarm Memory • Sensitivity Control Times: - 9 minutes (RE46C165/6) - 1.
2 minutes (RE46C167/8) • I/O Filter and Charge Dump • Interconnect up to 40 Detectors • Internal Power-on Reset (POR) • >2000V ESD Protection (HBM) on All Pins • Low Quiescent Current Consumption (<8 µA) • Internal Low Battery Detection and Chamber Test • RoHS Compliant Lead-Free Packaging Description The RE46C165/6/7/8 devices are low-power, CMOS photoelectric type, smoke detector ICs.
With minimal external components, these circuits will provide all the required features for a photoelectric type smoke detector.
Each design incorporates a gain-selectable photo amplifier for use with an infrared emitter/detector pair.
An internal oscillator strobes power to the smoke detection circuitry for 100 µs, every 10 seconds, to keep standby current ...


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