F81438
10 Application Circuit
5V
VCC
DSR#
RTS#
SOUT#
DTR#
CTS#
RI#
VCC
5
DSR
RTS
R1_OUT
T1_IN
T2_IN
T3_IN
R2_OUT
R3_OUT
R4_OUT
R5_OUT
SD
R1_IN
T1_OUT
T2_OUT
T3_OUT
R2_IN
R3_IN
R4_IN
R5_IN
GND
C
26
1
6
1.0uF
7
RI
RI
SOUT
DTR
28
27
19
20
21
22
24
2
17
18
15
16
4
CTS
GND
RI#
5
9
4
8
3
7
2
6
1
CTS
RTS
RTS
DSR
DSR
GND
GND
DTR
DTR#
CTS#
SOUT#
RTS#
SIN#
DSR#
DCD#
CTS
DTR
SOUT
SOUT
SIN
RI
SIN
HOST
DCD
SIN
SIN#
DCD#
GND
DCD
SD
SD
DCD
SD
3
MODE_1
MODE_1
MODE_2
MODE_2
SLEW
8
DB9
SLEW
MODE_1
MODE_2
SLEW
MODE_1
MODE_2
SLEW
C1+
23
25
9
MODE SELECTION
SD MODE_1 MODE_2 MODE
F81438
C
C
0.1uF
C1-
12
11
0
0
0
0
1
0
0
1
1
X
0
1
0
1
X
RS422
RS232
C2+
0.1uF
C2-
13
10
RS485(default：RX)
V+
C
C
0.1uF
RS485(default：TX)
V-
14
0.1uF
SHUTDOWN MODE
Title
Size
B
Document Number
F81438
Rev
A
Date:
Monday, November 07, 2011
Sheet
1
of
1
Jan, 2012
V0.11P
20
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
