Datasheet

Copyright © 2009 Future Technology Devices International Limited 9
Document No.: FT_000053
FT232R USB UART IC Datasheet Version 2.02
Clearance No.: FTDI# 38
3.3 QFN-32 Package
Figure 3.2 QFN-32 Package Pin Out and schematic symbol
3.4 QFN-32 Package Signal Description
Pin No. Name Type Description
14 USBDP I/O
USB Data Signal Plus, incorporating internal series resistor and 1.5kΩ pull up resistor
to +3.3V.
15 USBDM I/O
USB Data Signal Minus, incorporating internal series resistor.
Table 3.5 USB Interface Group
Pin No. Name Type Description
1 VCCIO PWR
+1.8V to +5.25V supply for the UART Interface and CBUS group pins (2, 3,
6,7,8,9,10 11, 21, 22, 30,31,32). In USB bus powered designs connect this pin to
3V3OUT to drive out at +3.3V levels, or connect to VCC to drive out at +5V CMOS
level. This pin can also be supplied with an external +1.8V to +2.8V supply in order
to drive out at lower levels. It should be noted that in this case this supply should
originate from the same source as the supply to VCC. This means that in bus
powered designs a regulator which is supplied by the +5V on the USB bus should be
used.
4, 17,
GND PWR
Device ground supply pins.
FT232RQ
32
25
24
17
169
8
1
YYXX-A
18
9
1
2
3
4
5
6
7
8
10111213141516
17
19
20
21
22
23
24
25 26 27 28 29 30 31 32
RESET#
VCC
NC
AGND
CBUS1
CBUS0
RXD
VCCIO
RI#
GND
NC
DSR#
DCD#
CTS#
GND
GND
I
FT232RQ
A
G
N
D
G
N
D
G
N
D
G
N
D
T
E
S
T
24 4 17 20 26
3V3OUT
VCCIO
1
16
NC
RESET#
NC
23
18
13
TXD
RXD
RTS#
CTS#
DTR#
DSR#
DCD#
RI#
30
2
32
8
31
6
7
3
CBUS0
CBUS3
CBUS2
CBUS1
22
21
10
11
19
15
14
USBDP
USBDM
VCC
OSCI
27
OSCO
28
CBUS4
9
NC
12
NC
5
NC
29
NC
25
FTD
XXXXXXX