FT240X USB 8-BIT FIFO IC Datasheet
Version 1.3
Document No.: FT_000626 Clearance No.: FTDI# 259
3.3 QFN-24 Package
12
21
1
23
6
22
4
3V3OUT
DATA0
DATA1
DATA2
DATA3
DATA4
DATA5
DATA6
DATA7
11
USBDM
10
USBDP
13
5
2
RESET#
18
17
8
9
7
20
19
RXF#
TXE#
RD#
WR#
SI/WU#
CBUS5
CBUS6
Figure 3.2 QFN-24 Package Pin Out and schematic symbol
3.4 QFN-24 Package Signal Description
Note: The convention used throughout this document for active low signals is the signal name followed by
a #
Pin No. Name
Type
I/O
Description
USB Data Signal Plus, incorporating 1.5kΩ pull up resistor to 3.3V.
10
11
USBDP
USBDM
USB Data Signal Minus.
I/O
Table 3.5 USB Interface Group
Pin No. Name
Type
PWR
PWR
Description
1V8 - 3V3 supply for the IO cells
24
VCCIO
GND
Device ground supply pins
3, 16
3V3 output at 50mA. May be used to power VCCIO.
**
12
Output
When VCC is 3V3; pin 12 is an input pin and should be connected to
pin 15.
3V3OUT
**
+5V (or 3V3) supply to the device core.
15
14
PWR
PWR
VCC
+1V8 Output. May be left unterminated
VCORE
Table 3.6 Power and Ground Group
*Pin 25 is the centre pad on package base. Connect to GND.
**If VCC is 3V3 then 3V3OUT must also be driven with 3V3 input
Copyright © 2013 Future Technology Devices International Limited
9
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