參數(shù)資料
型號(hào): MC14468
廠商: Motorola, Inc.
英文描述: LONIZATION SMOKE DETECTOR IC WITH INTERCONNECT
中文描述: 電離煙霧報(bào)警器集成電路互連
文件頁(yè)數(shù): 6/8頁(yè)
文件大?。?/td> 266K
代理商: MC14468
6
Motorola Sensor Device Data
Figure 6. Timing Diagram
Hysteresis (Internal)
(Pin 13 ) (Pin 14)
Detect Out
(Pin 1)
Low Battery
(Internal)
Sample (Internal)
Smoke
Horn
(Pin 10 and 11)
LED
(Pin 5)
Oscillator
(Pin 12)
Standby
No Smoke/
No Low Battery
Smoke/No Low Battery
Smoke/Low Battery
No Smoke/Low Battery
1.67 s
40 ms
10 ms
24 Clock Cycles (0.96 s)
24 Clock Cycles
(40S)
24 Clock Cycles
6 Clock
Cycles (10.0 s)
Suppressed Chirp
Battery Test
(Note 3)
(Note 3)
(Note 1)
Strobe Out
(Pin 14)
I/O (Pin 2)
Output (Local)
I/O (Pin 2)
Input (Remote)
LED
Note: Horn Modulation Not Self–Completing
Low = Disable
High = Enable
(Suppressed LED for Remote Only)
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 mV p–p swing.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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