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參數(shù)資料
| 型號： | MCZ145012EG |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SMOKE DETECT PHOTOELEC 16SOIC |
| 標(biāo)準(zhǔn)包裝： | 47 |
| 類型： | 煙霧探測器 |
| 輸入類型： | 光電 |
| 輸出類型： | 電壓 |
| 電流 - 電源： | 12µA |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOIC W |
| 包裝： | 管件 |
Sensors
Freescale Semiconductor
5
MC145012
Table 3. AC Electrical Characteristics
No.
Parameter
Symbol
Test Condition
Clocks
Min (6)
Typ (7)
Max(6)
Unit
1
Oscillator Period
1/FOSC
Free-Running Sawtooth
Measured at Pin 12
1.0
7.0
7.9
8.6
ms
2
LED Pulse Period
TLED
No Local Smoke, and
No Remote Smoke
4096
28.8
32.4
35.2
s
3
Remote Smoke, but
No Local Smoke
—
Extinguished
4
Local Smoke
64
0.45
—
5
Push-button Test
64
0.45
—
6
LED Pulse Width and Strobe
Pulse Width
TW(LED),
TW(STB)
1.0
7.0
—
8.6
ms
7
IRED Pulse Period
TIRED
Smoke Test
1024
7.2
8.1
8.8
s
8
IRED Pulse Period
TIRED
Chamber Sensitivity Test,
without Local Smoke
4096
28.8
32.4
35.2
s
9
Push-button Test
128
0.9
1.0
1.1
10
IRED Pulse Width
TW(IRED)
TF*
94
—
116
s
11
IRED Rise Time
TR
—
30
12
IRED Fall Time
TF
—
200
s
13
Silver and Brass Temporal
Modulation Pulse Width
TON
64
0.45
0.5
0.55
s
14
TOFF
0.45
0.5
0.55
15
TOFFD
192
1.35
1.52
1.65
16
Silver and Brass Chirp Pulse
Period
TCH
Low Supply or Degraded
Chamber Sensitivity
4096
28.8
32.4
35.2
s
17
Silver and Brass Chirp Pulse
Width
TWCH
1
7.0
7.9
8.6
ms
18
Rising Edge on I/O to Smoke
Alarm Response Time
TRR
Remote Smoke,
No Local Smoke
—
2.0 (8)
—
s
19
Strobe Out Pulse Period
TSTB
Smoke Test
1024
7.2
8.1
8.8
s
20
Chamber Sensitivity Test,
without Local Smoke
4096
28.8
32.4
35.2
21
Low Supply Test,
without Local Smoke
4096
28.8
32.4
35.2
22
Push-button Test
—
1.0
—
Notes
6. Oscillator period T (= Tr + Tf) is determined by the external components R1, R2, and C3 where TR = (0.6931) R2 C3 and TF = (0.6931) R1 *
C3. The other timing characteristics are some multiple of the oscillator timing as shown in the table. The timing shown should accommodate
the NFPA 72, ANSI S3.41, and ISO 8201 audible emergency evacuation signals.
7. Typicals are not guaranteed.
8. Time is typical - depends on what point in cycle signal is applied.
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