MC14568 Freescale Semiconductor, MC14568 Datasheet - Page 6
MC14568
Manufacturer Part Number
MC14568
Description
Low-Power CMOS Ionization Smoke Detector
Manufacturer
Freescale Semiconductor
Datasheet
1.MC14568.pdf
(11 pages)
Available stocks
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Part Number
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Quantity
Price
Part Number:
MC14568BCP
Manufacturer:
ON/安森美
Quantity:
20 000
MC14568
6
Pin 1 TIMER START
NO SMOKE
SMOKE
Pin 4 TIMER OUT
Pin 12 OSC CAP
Internal Clock
Pin 5 LED
10 ms
Check for Smoke Window
Check for Smoke Window
Figure 4. MC14568 Oscillator Waves in Stand By and Smoke Conditions
Figure 3. MC14568 Timing Diagram for the Timer Circuit
10 ms
40 ms
1.67 s
Check for Smoke Window
6 Clock Cycles
231 Clock Cycles
Freescale Semiconductor
Time
Time
Time
Time
Time
Time
Time
Sensors