RE46C126
CMOS Ionization Smoke Detector ASIC with Interconnect
R&E International
Product Specification
Timing Diagram
Standby Mode; No Low Battery; No Alarm
Alarm; No Low Battery
Alarm; Low Battery
No Alarm; Low Battery
Oscillator
Pin 15 > Pin 13
Pin 13 > Pin 15; 130mV Level Shift on Pin 13
Pin 15 > Pin 13
1.67S
10.5mS
Internal Clock
24 Clock Cycles (40 S)
24 Clock Cycles (1S)
Floating
LED
DETCOMP (pin1)
Sample Smoke
STROBE (pin 4)
Horn
Floating
Low Battery Warning Chirp
See Figure Below for Complete Horn Cycle
IO (Pin 2) as Output
IO Charge Dump
T
IODMP
T
IOFILT
IO ( Pin 2) as Input
LED supressed in remote alarm mode
T
IODLY2
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 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-RE46C126-010907
This datasheet contains PROPRIETARY and CONFIDENTIAL information.
RANDE [ R & E INTERNATIONAL, INC. ]
