FTDIschematic.pdf

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UC232R Schematic.indd
VCC
VCC
VCC
U1
U2
TXD
1
TXD
OSCO
28
DTR
1
28
T3O
T4O
DTR#
2
27
DTR#
OSCI
TXDATA
2
27
CTS
GND
T1O
R3I
RTS#
3
26
DB9M
RTS#
TEST
RTS
3
T2O
R3O
26
CTS#
PL1
4
25
5
9
4
8
3
7
2
6
1
VCCIO
AGND
GND
RXDATA
4
25
SLEEP#
RI
R2I
SD
RXD
5
24
DTR
RXD
AVCC
RXD
5
24
CTS
R2O
EN
RI#
6
23
TXDATA
RI#
CBUS0
RTS#
6
23
RI
RTS
T2I
R4I
7
22
RXDATA
GND
CBUS1
TXD
7
22
RI#
DSR
T1I
R4O
8
21
DCD
VCC3I
GND
DSR#
8
21
R1O
T4I
DSR#
9
20
DSR#
VCC5I
VCC
DSR
9
20
DTR#
R1I
T3I
DCD#
10
19
**
SHIELD
DCD#
RESET#
10
19
DCD#
GND
R5O
CTS#
11
18
VCC
CTS#
GND
C4
10nF
11
18
DCD
VCC
R5I
SLEEP#
12
17
100nF
CBUS4
VCC3O
GND
12
17
C1+
V-
13
16
CBUS2
USBDM
13
16
V+
C2-
14
15
C6
10nF
CBUS3
USBDP
14
15
C7
100nF
C1-
C2+
FT232R
GND
ZT213E
100nF
C10
10nF
C5
10nF
FB1
100nF
100nF
GND
GND
1 2
VCC
C8
USB
FERRITE BEAD
VCC
*
GND
100nF
CN-USB
C1
10nF
CN1
C9
1
2
3
4
GND
NOTES
4.7uF
*
Optional - may be
required to reduce
EMI emissions
The shield wire
of the USB cable
should be soldered
to the DB9 outer can
*
*
FT232R APPLICATION SCHEMATIC
C2
10nF
C3
10nF
47pF 47pF
"ChiPi"
**
MINIMAL COMPONENT USB SERIAL ADAPTOR
GND GND
GND
SHIELD
**
10nF
10nF
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