Freescale Semiconductor, Inc.
TIMING PARAMETERS (Cosc = 0.1 µF, Rbias = 8.2 MΩ, VDD = 9.0 V, TA = 25°C, See Figure 2)
Characteristics
Pin #
Symbol Min
Oscillator Period (1 Clock Cycle = 1 Oscillator Period)
Oscillator Pulse Width (No Alarm and Alarm Condition)
LED Output Period
No Alarm
Alarm
No Alarm
Alarm
12
3,4,5,13
5
tCI
1.25
—
30
tr
7.0
tLED
30
—
.71
Alarm Horn Output
Low Battery Horn Output
Hi Time
Low Time
Hi Time
Between Pulses
10,11
10,11
ton
120
toff
60
ton
7.0
toff
30
MC14600
Max Units
2.25
s
52
ms
13
ms
52
s
1.25
ms
208
ms
104
ms
13
ms
52
s
VDD
VDD
LOW V COMP. 4
OUT
HORN FEEDBACK
8
LOW V SET 3
DETECT 1
COMPARATOR OUT
ALARM 13
THRESHOLD
ALARM DETECT 15
INPUT
LOW BATTERY
COMPARATOR
–
+
DETECT
–
COMPARATOR
+
ALARM
LOGIC
GUARD
AMP
+
–
VDD HI–Z
16
OSC
AND
TIMING
Cosc
12
7
11 HORN
OUT 2
10 HORN
OUT 1
5
LED
VDD = PIN 6
VSS = PIN 9
Rbias
VDD
Figure 1. Block Diagram
Motorola Sensor Device Data For More Information On This Product,
3
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