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參數(shù)資料
| 型號： | MCZ146012EGR2 |
| 廠商： | 飛思卡爾半導體(中國)有限公司 |
| 英文描述： | Low Power CMOS Photoelectric Smoke Detector IC |
| 中文描述： | 低功耗CMOS集成電路光電感煙探測器 |
| 文件頁數(shù)： | 11/18頁 |
| 文件大?。?/td> | 358K |
| 代理商： | MCZ146012EGR2 |
Sensors
Freescale Semiconductor
11
MC146012
Table 4. MC146012 Test Mode Logic Table
Pin
Function
Type
Logic
Description
Pin 16, TEST
Test Mode 1 Trigger
Input
None
Set a –Ve voltage to the pin and source 100
μ
A from
the pin to start Test Mode 1.
Pin 12, OSC CAP
Clock Input
Input
0
Internal clock low
1
Internal clock high
Pin 5, V
DD
Pin 14, V
SS
Pin 11, LED
Chip Power
Chip Ground
Built-in-Test for HUSH
Timer
Output
Output pulse active low for 8 Clocks every 128
Clocks.
Pin 4, STROBE
Analog Ground
Output
Output low when pin 12 is low.
Pin 6, IRED
IRED
Output
0
Output low when pin 12 is low.
1
Output high (3.0 V) when pin 12 is high.
Pin 3, DETECT
Smoke Sensing Input
Input
NO SMK: V
DD
-2.5 V – (1/Hi Gain)
SMK: V
DD
-2.5 V –(1/Low Gain)
HI SMK: V
DD
-2.5 V – (2/Low Gain)
Pin 8, BRASS
Smoke Latch Indicator
Output
0
Output low when smoke latch not set.
1
Output high when smoke latch set.
Pin 9, SILVER
Photo-Comparator
Indicator
Output
0
Output low when photo comparator not set.
1
Output high when photo comparator set.
Pin 7, I/O
Photo-Amp Routing
Enable
Input
0
Disable the function of Pin 1, 2, 10 and 15 in Test
Mode 1.
1
Enable photoamplifier output routed to the pins and
enable pins 1, 2, 10 and 15 in test Mode 1.
Pin 15, LOW_BATT
Low Battery Trip Point
Input
Control photo amp. Gain and output routing
Pin 10, FEEDBACK
Feedback
Input
Control hysteresis
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