RE46C120 データシートの表示（PDF） - R and E International, Inc.

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RE46C120

CMOS Ionization Smoke Detector ASIC

R and E International, Inc. 

RE46C120

CMOS Ionization Smoke Detector ASIC

Product Specification

R&E International

Standby Mode; No Low Battery; No Alarm

Timing Diagram

Alarm; No Low Battery

Alarm; Low Battery

No Alarm; Low Battery

Oscillator

Internal Clock

LED

DETCOMP (pin1)

Sample (2/3 Duty)

Sample (NFPA72)

Pin 15 > Pin 13

1.67S 10mS

24 Clock Cycles (40 S)

Horn (2/3 Duty Cycle, TONE=VSS)

Horn (NFPA72, TONE=Open or VDD)

Pin 13 > Pin 15; 130mV Level Shift on Pin 13

24 Clock Cycles (1S)

THON3

THOF3

See Figure Below for Complete Temporal Horn Cycle

Pin 15 > Pin 13

Low Battery Warning Chirp

Low Battery Warning Chirp

Notes:

1. Smoke is not sampled when the horn is active so the horn cycle is self completing

2. Low battery warning chirp is suppressed in alarm

THON1 THOF1

THOF2

Complete Temporal Horn Pattern

Telephone 610.992.0727

Facsimile 610.992.0734

E-mail: rande@randeint.com

Page 6 of 7

DS-RE46C120-010907

This datasheet contains PROPRIETARY and CONFIDENTIAL information.

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