FT4232HQ-REEL FTDI, FT4232HQ-REEL Datasheet - Page 31

• Manufacturer Part Number: FT4232HQ-REEL
• Description: USB Interface IC USB HS to Quad UART/ SPI/JTAG/I2C LQFN-64
• Manufacturer: FTDI
• Type: USB to High Speed UART/JTAG/SPI/I2Cr

Specifications of FT4232HQ-REEL

• Operating Supply Voltage: 1.8 V, 3.3 V
• Package / Case: QFN-64
• Description/function: USB High Speed to Dual UART/FIFO IC LQFP-64
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 85 C
• Supply Current: 70 mA
• 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 FT4232H 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.
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
GND
93C46
GND
100nF
VCC
DU
10K
Copyright © 2010 Future Technology Devices International Limited
Q
+3.3V
8
4
7
+3.3V
GND
10K
Vin
+3.3V
+3.3V
LDO +3.3V
FT4232H QUAD HIGH SPEED USB TO MULTIPURPOSE UART/MPSSE IC
GND
GND
4.7K
10K
10K
Vout
2.2K
GND
+3.3V
GND
GND
100nF
12K
GND
EECLK
EEDATA
1
+1.8V
27pF
12MHz
1K
GND
3
4.7uF
GND
GND
27pF
3.3uF
GND
4.7uF
50
49
14
63
62
61
13
7
8
6
2
3
GND
100nF 100nF
VREGOUT
VREGIN
RESET#
DM
DP
REF
EECS
OSCI
TEST
EECLK
OSCO
EEDATA
GND
+1.8V +1.8V +1.8V +3.3V +3.3V +3.3V +3.3V
GND
100nF
+1.8V
Document No.: FT_000060
GND
100nF 100nF
Clearance No.: FTDI#78
GND
Datasheet Version 2.10
GND
SUSPEND#
+3.3V
PWREN#
BDBUS0
BDBUS1
BDBUS2
BDBUS3
BDBUS4
BDBUS5
BDBUS6
BDBUS7
CDBUS0
CDBUS1
CDBUS2
CDBUS3
CDBUS4
CDBUS5
CDBUS6
CDBUS7
DDBUS0
DDBUS1
DDBUS2
DDBUS3
DDBUS4
DDBUS5
DDBUS6
DDBUS7
ADBUS0
ADBUS1
ADBUS2
ADBUS3
ADBUS4
ADBUS5
ADBUS6
ADBUS7
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
31