Datasheet

© Copyright 2005-2011 Future Technology Devices International Ltd
22
Document Reference No.: FT_000051
UM232R USB - Serial UART Development Module
Datasheet Version 1.1
Clearance No.: FTDI# 125
8 UM232R Module Circuit Schematic
FT
232
R
Ferrite
Bead
FB
1
VCC
J
2
1
2
1
2
3
4
SLD
5
VCC
C
1
10
nF
+
+
+
+
+
C
2
C
3
47
pF
47
pF
GND
USB
GND
GND
GND
PU
2
PU
1
R
2
R
1
10
k
10k
C
5
C
6
VCC
0
.
1
uF
4
.
7
uF
CN
1
1
2
3
J
1
3
V
3
VIO
VCC
GND
C
4
0
.
1
uF
3
V
3
VIO
RST
#
U
1
TXD
RXD
RTS
#
CTS
#
DTR
#
DSR
#
DCD
#
RI
#
CB
0
CB
1
CB
2
CB
3
CB
4
PL
1
TXD
DTR
#
RTS
#
VIO
RXD
RI
#
GND
DSR
#
DCD
#
CTS
#
CB
4
CB
2
SKT
24
GND
CB
0
CB
1
VCC
RST
#
3
V
3
CB
3
PU
1
PU
2
VCC
USB
SLD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
20
VCC
16
USBDM
15
USBDP
4
VCCIO
8
NC
19
RESET
#
24
NC
27
OSCI
28
OSCO
17 3
V
3
OUT
A
G
N
D
25
G
N
D
17
G
N
D
18
G
N
D
21
T
E
S
T
26
TXD
1
RXD
5
RTS
#
3
CTS
#
11
DTR
#
2
DSR
#
9
DCD
#
10
RI
#
6
CBUS
0 23
CBUS
1 22
CBUS
2 13
CBUS
3 14
CBUS
4 12
Figure 8.1 Module Circuit Schematic