Data Sheet

Copyright © Future Technology Devices International Limited 7
FT230X USB TO BASIC UART IC
Version 1.4
Document No.: FT_000566 Clearance No.: FTDI# 260
3 Device Pin Out and Signal Description
3.1 16-LD QFN Package
VCCIO
1
GND
3
RTS#
16
CTS#
4
CBUS2
5
USBDP
6
USBDM
7
3V3OUT
8
RESET#
9
VCC
10
CBUS1
11
CBUS0
12
GND
13
TXD
15
RXD
2
CBUS3
14
GND
17
Figure 3.1 QFN Schematic Symbol
3.1.1 QFN Package PinOut Description
Note: # denotes an active low signal.
Pin No.
Name
Type
Description
10
**
VCC
POWER
Input
5 V (or 3V3) supply to IC
1
VCCIO
POWER
Input
1V8 - 3V3 supply for the IO cells
8
**
3V3OUT
POWER
Output
3V3 output at 50mA. May be used to power VCCIO.
When VCC is 3V3; pin 8 is an input pin and should be
connected to pin 10.
3, 13, 17
*
GND
POWER
Input
0V Ground input.
Table 3.1 Power and Ground
*Pin 17 is the centre pad under the IC. Connect to GND.
** If VCC is 3V3 then 3V3OUT must also be driven with 3V3 input
Pin No.
Name
Type
Description
7
USBDM
INPUT
USB Data Signal Minus.
6
USBDP
INPUT
USB Data Signal Plus.
9
RESET#
INPUT
Reset input (active low).
Table 3.2 Common Function pins