RE46C144 데이터 시트보기 (PDF) - Microchip Technology

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RE46C144

CMOS Photoelectric Smoke Detector ASIC with Interconnect and Timer Mode

Microchip Technology 

RE46C144

Oscillator

TPOSC TPWOSC

Standby, No Alarm (not to scale)

Internal Clock

STROBE

TON1

TPER1

TON2

IRED

TPLED1

LED

LED

Horn

Low Supply or Chamber Test Failure

Low BatteryTest

Low Battery Warning Chirp

THON3

Low Battery Warning Chirp

FIGURE 3-1:

THOF3

Chamber Test and Warning is Offset from Low Battery Test and Warning by 21.5 Seconds

RE46C144 Timing Diagram – Standby, Low Supply and Chamber Test Failure.

 2009-2012 Microchip Technology Inc.

DS22180C-page 11

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