RE46C129
CMOS Ionization Smoke Detector ASIC with Interconnect
R&E International
Product Specification
Timing Diagram
Pin 15 < Pin 13
Pin 15 > Pin 13
Pin 15 < Pin 13
TPER1
TPW
Internal Clock
24 Clock Cycles (40 S)
24 Clock Cycles (1S)
Ouput High Z
LED
Sample Smoke
THON1
THOF1
Low Battery Warning Chirp
Horn
TIODLY1
IO (Pin 2) as Output
IO Charge Dump
Timing not same scale as above
TIOFILT
LED supressed in remote alarm mode
IO ( Pin 2) as Input
TIODLY2
Horn
Start of horn pattern is not synchronized to an external alarm
Horn pattern not self completing for external alarm
Internal Clock
Notes:
1. Smoke is not sampled when the horn is active. Horn cycle is self completing in local alarm.
2. Low battery warning chirp is suppressed in local or remote alarm.
3. IO Dump active only in local alarm, inactive if external alarm.
Telephone 610.992.0727
Page 7 of 8
Facsimile 610.992.0734
E-mail: rande@randeint.com
DS-RE46C129-121806
This datasheet contains PROPRIETARY and CONFIDENTIAL information.
RANDE [ R & E INTERNATIONAL, INC. ]
