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MC14467-1 Datasheet(PDF) 6 Page - Freescale Semiconductor, Inc

Part No. MC14467-1
Description  Low-Power CMOS Ionization Smoke Detector IC
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Maker  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
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MC14467-1 Datasheet(HTML) 6 Page - Freescale Semiconductor, Inc

   
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Sensors
6
Freescale Semiconductor
MC14467-1
Figure 7. Timing Diagram
Smoke/no Low Battery
Smoke/Low Battery
No Smoke/low Battery
10 m s
40 m s
1.67 s
OSCILLATOR
(Pin 12)
DETECT OUT
(Pin 1)
LOW BATTERY OUT
(Pin 4)
HYSTERESIS (Internal)
(Pins 13 & 14)
SAMPLE (Internal)
Smoke
(Pins 10 & 11)
HORN
(Note 1)
LED
(Pin 5)
(Note 3)
Battery Test
(Note 3)
Suppressed Chirp
24 Clock Cycles
(40 s)
24 Clock Cycles (0.96 s)
24 Clock Cycles
6 Clock
Cycles (10.0 s)
Notes:
1. Horn modulation is self-completing. When going from smoke to no smoke, the alarm condition will terminate only when horn is off.
2. Comparators are strobed on once per clock cycle (1.67 s for no smoke, 40 ms for smoke).
3. Low battery comparator information is latched only during LED pulse.
4. ~ 100 mVp–p swing.
Standby
No Smoke/
No Low Battery


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Related Electronics Part Number

Part NumberComponents DescriptionHtml ViewManufacturer
MC14568Low-Power CMOS Ionization Smoke Detector with Interconnect and Timer 1 2 3 4 5 MoreFreescale Semiconductor, Inc

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