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RE46C190 Datasheet(PDF) 21 Page - Microchip Technology

Part # RE46C190
Description  CMOS Low Voltage Photoelectric Smoke Detector ASIC with Interconnect and Timer Mode
PDF  42 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

RE46C190 Datasheet(HTML) 21 Page - Microchip Technology

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 2010 Microchip Technology Inc.
DS22271A-page 21
RE46C190
As an alternative to Figure 4-1, Figure 4-3 can be used
to program while in the application circuit. Note that in
addition to the five programming supplies, connections
to VSS are needed at TP1 and TP2.
FIGURE 4-3:
Circuit for Programming in the Typical Application.
330
VBST
16
15
14
13
12
11
10
9
8
7
6
5
3
2
1 VSS
IRED
VDD
TEST
TEST2
IRP
IRN
RLED
FEED
GLED
IRCAP
IO
HB
HS
VBST
LX
RE46C190
D2
D3
4
9
D1
4.7 µF
C4
200K
R3
1.5M
R4
1 nF
C5
L1
10 µH
330
R5
33 µF
C6
To other Units
1 µF
C2
100
R1
10 µF
C1
VDD
VBST
R6
100
R7
D4
RED
D5
GREEN
C3
100 µF
Smoke
Chamber
V1
3V
TP1
TP2
V4
V5
V6
V7
V2
5V
V3
5V
Monitor RLED,
GLED and HB
Push-To-Test/
Hush



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