FT2232HQ - REEL FTDI, Future Technology Devices International Ltd, FT2232HQ - REEL Datasheet - Page 52

• Manufacturer Part Number: FT2232HQ - REEL
• Description: IC USB UART/FIFO DUAL HS 64-QFN
• Manufacturer: FTDI, Future Technology Devices International Ltd
• Series: USBmadeEZ-FIFOr

Specifications of FT2232HQ - REEL

• Features: USB to UART and/or FIFO, SPI, I2C, JTAG
• Number Of Channels: 2, DUART
• Fifo's: 4096 Byte
• Protocol: RS-232, RS-422, RS-485
• Voltage - Supply: 3 V ~ 3.6 V
• With Parallel Port: Yes
• With Auto Flow Control: Yes
• With Modem Control: Yes
• With Cmos: Yes
• Mounting Type: Surface Mount
• Package / Case: 64-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 768-1025-2; FT2232HQ - REEL

Self Powered application example 2: Self powered configuration (with additional 1.8V LDO voltage
regulator for VCORE)
Figure 6.4 Self Powered Configuration Example 2
Figure 6.4 illustrates the FT2232H in a typical USB self powered configuration similar to Figure 6.3. The
difference here is that the +1.8V for the FT2232H core has been regulated from the external power
supply.
Note that in this set-up, the EEPROM should be configured for self-powered operation and the option
“suspend on DBUS7 low” selected in MPROG. Also this configuration uses the pin BCBUS7, so this
assumes that MPSSE mode is not selected.
Ext. Power Supply
VBUS
GND
D+
D-
1
2
1
6
3
2
5
1
2
3
0?
GND
CS
D
ORG
GND
SCL
VBUS
93C46
GND
GND
Copyright © 2010 Future Technology Devices International Limited
100nF
VCC
DU
10K
Q
GND
100nF
8
4
7
+3.3V
GND
10K
Vin
+3.3V
+3.3V
LDO +1.8V
GND
+3.3V
GND
FT2232H DUAL HIGH SPEED USB TO MULTIPURPOSE UART/FIFO IC
10K
Vout
2.2K
Vin
LDO +3.3V
GND
GND
+1.8V
GND
GND
Vout
100nF
12K
+3.3V
GND
EECLK
EEDATA
+3.3V
GND
1
27pF
100nF
12MHz
1K
GND
3
4.7uF
GND
27pF
GND
4.7uF
50
49
14
63
62
61
13
7
8
6
2
3
GND
100nF 100nF
VREGIN
VREGOUT
RESET#
DP
REF
DM
EECS
EECLK
OSCI
OSCO
TEST
EEDATA
GND
+1.8V +1.8V +1.8V +3.3V +3.3V +3.3V +3.3V
GND
100nF
Document No.: FT_000061
+1.8V
Clearance No.: FTDI#77
GND
Datasheet Version 2.10
100nF 100nF
GND
GND
SUSPEND#
+3.3V
PWREN#
ADBUS0
ADBUS1
ADBUS2
ADBUS3
ADBUS4
ADBUS5
ADBUS6
ADBUS7
ACBUS0
ACBUS1
ACBUS2
ACBUS3
ACBUS4
ACBUS5
ACBUS6
ACBUS7
BCBUS0
BCBUS1
BCBUS2
BCBUS3
BCBUS4
BCBUS5
BCBUS6
BCBUS7
BDBUS0
BDBUS1
BDBUS2
BDBUS3
BDBUS4
BDBUS5
BDBUS6
BDBUS7
GND
100nF 100nF 100nF 100nF
GND
16
17
18
19
21
22
23
24
26
27
28
29
30
32
33
34
38
39
40
41
43
44
45
46
48
52
53
54
55
57
58
59
60
36
GND
52
GND
GND
4.7K
10K
VBUS