FT2232HQ-REEL FTDI, FT2232HQ-REEL Datasheet - Page 51

• Manufacturer Part Number: FT2232HQ-REEL
• Description: USB Interface IC USB HS to Dual UART/ FIFO/SPI/JTAG/I2C
• Manufacturer: FTDI

Specifications of FT2232HQ-REEL

• Mounting Style: SMD/SMT
• Package / Case: QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.2 USB Self Powered Configuration
Self Powered application example 1: Self powered configuration
Figure 6.3 Self Powered Configuration Example 1
Figure 6.3 illustrates the FT2232H in a typical USB self powered configuration. A USB self powered device
gets its power from its own power supply and does not draw current from the USB bus. In this example
an external power supply is used. This external supply is regulated to +3.3V.
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
1
2
D+
D-
1
6
3
2
5
GND
1
2
3
4
0?
D
CS
ORG
GND
SCL
VBUS
GND
93C46
GND
100nF
VCC
Copyright © 2010 Future Technology Devices International Limited
DU
10K
Q
8
4
7
+3.3V
GND
10K
+3.3V
+3.3V
Vin
LDO +3.3V
GND
+3.3V
GND
10K
FT2232H DUAL HIGH SPEED USB TO MULTIPURPOSE UART/FIFO IC
Vout
2.2K
+3.3V
GND
GND
100nF
12K
+3.3V
GND
EECLK
EEDATA
27pF
1
+1.8V
12MHz
1K
GND
3
4.7uF
GND
GND
3.3uF
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
+1.8V
Document No.: FT_000061
GND
100nF 100nF
Clearance No.: FTDI#77
Datasheet Version 2.10
GND
GND
SUSPEND#
+3.3V
PWREN#
ADBUS0
ADBUS1
ADBUS2
ADBUS3
ADBUS4
ADBUS5
ADBUS6
ADBUS7
ACBUS0
ACBUS1
ACBUS2
ACBUS3
ACBUS4
ACBUS5
ACBUS6
ACBUS7
BDBUS0
BDBUS1
BDBUS2
BDBUS3
BDBUS4
BDBUS5
BDBUS6
BDBUS7
BCBUS0
BCBUS1
BCBUS2
BCBUS3
BCBUS4
BCBUS5
BCBUS6
BCBUS7
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
GND
GND
51
VBUS
4.7K
10K