FT232RQ R FTDI, Future Technology Devices International Ltd, FT232RQ R Datasheet - Page 10

• Manufacturer Part Number: FT232RQ R
• Description: IC USB TO SERIAL UART 32-QFN
• Manufacturer: FTDI, Future Technology Devices International Ltd
• Series: USBmadeEZ-UARTr

Specifications of FT232RQ R

• Features: USB to UART
• Number Of Channels: 1, UART
• Fifo's: 256 Byte
• Protocol: RS-232, RS-422, RS-485
• Voltage - Supply: 3.3 V ~ 5.25 V
• With Auto Flow Control: Yes
• With Modem Control: Yes
• With Cmos: Yes
• Mounting Type: Surface Mount
• Package / Case: 32-QFN
• For Use With: 768-1023 - MOD USB RS232 DEV/EVAL FT232RL768-1022 - MODULE USB - SERIAL MODULE MINI768-1021 - MODULE MINI DEVELOPMENT FT232RQ768-1019 - MODULE USB-SER UART FT232 24-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 768-1008-2; FT232RQ R

3.3 QFN-32 Package
Figure 3.2 QFN-32 Package Pin Out and schematic symbol
3.4 QFN-32 Package Signal Description
Table 3.5 USB Interface Group
4, 17, 20
Pin No.
RESET#
Pin No.
CBUS0
CBUS1
AGND
14
15
GND
GND
VCC
1
NC
24
23
22
21
20
19
18
17
1
8
USBDM
USBDP
Name
FT232RQ
VCCIO
Name
XXXXXXX
32
25
16
9
GND
YYXX-A
26
15
FTD
27
14
Copyright © 2010 Future Technology Devices International Limited
Type
28
13
I/O
I/O
Type
PWR
PWR
29
12
30
11
USB Data Signal Plus, incorporating internal series resistor and 1.5kΩ pull up resistor
to +3.3V.
USB Data Signal Minus, incorporating internal series resistor.
31
10
+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.
Device ground supply pins.
I
25
16
32
9
24
17
1
2
3
4
5
6
7
8
GND
NC
DCD#
CTS#
RXD
RI#
VCCIO
DSR#
FT232R USB UART IC Datasheet Version 2.07
19
15
14
12
13
18
23
27
28
16
25
29
1
5
VCC
USBDM
USBDP
VCCIO
Description
NC
NC
NC
NC
NC
RESET#
NC
OSCI
OSCO
3V3OUT
Description
24
A
G
N
D
FT232RQ
4
G
N
D
Document No.: FT_000053
17
Clearance No.: FTDI# 38
G
N
D
20
G
N
D
26
T
E
S
T
CBUS0
CBUS1
CBUS2
CBUS3
CBUS4
DCD#
DTR#
DSR#
RTS#
CTS#
RXD
TXD
RI#
30
2
32
8
31
6
7
3
22
21
10
11
9
10