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FT4232H Datasheet(PDF) 29 Page - Future Technology Devices International Ltd.

Part # FT4232H
Description  QUAD HIGH SPEED USB TO MULTIPURPOSE UART
PDF  43 Pages
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Manufacturer  FTDI [Future Technology Devices International Ltd.]
Direct Link  http://www.ftdichip.com
Logo FTDI - Future Technology Devices International Ltd.

FT4232H Datasheet(HTML) 29 Page - Future Technology Devices International Ltd.

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Copyright © 2009 Future Technology Devices International Limited
29
Document No.: FT_000060
FT4232H QUAD HIGH SPEED USB TO MULTIPURPOSE UART/MPSSE IC
Datasheet Version 2.05
Clearance No.: FTDI#78
Bus Powered Application example 2: Bus powered configuration (with additional 1.8V LDO voltage
regulator for VCORE)
Figure 6.2 Bus Powered Configuration Example 2
Figure 6.3 illustrates the FT4232H in a typical USB bus powered configuration similar to Figure 6.1. The
difference here is that the +1.8V for the FT4232H core (VCORE) has been regulated from the VBUS as
well as the +3.3V supply to the VPLL, VPHY, VCCIO and VREGIN.
VBUS
1
D-
2
D+
3
GND
4
100nF 100nF
GND
GND
4.7uF
4.7uF
GND
GND
+1.8V
+3.3V
100nF
100nF 100nF 100nF 100nF
100nF 100nF
+1.8V +1.8V +1.8V +3.3V +3.3V +3.3V +3.3V
GND
GND
GND
GND
GND
GND
GND
+3.3V
+3.3V
12K
1K
GND
+3.3V
27pF
27pF
CS
1
SCL
2
D
3
Q
4
GND
5
ORG
6
DU
7
VCC
8
93C46
GND
GND
GND
+3.3V
+3.3V
2.2K
10K
10K
10K
1
3
12MHz
EECLK
EEDATA
GND
Vin
Vout
GND
LDO +1.8V
GND
+1.8V
100nF
GND
100nF
GND
OSCI
2
OSCO
3
REF
6
DM
7
DP
8
TEST
13
RESET#
14
ADBUS0
16
17
18
19
21
22
23
24
26
27
28
29
30
32
33
34
SUSPEND#
36
38
39
40
41
43
44
45
46
48
VREGOUT
49
VREGIN
50
52
53
54
55
57
58
59
PWREN#
60
EECLK
62
EEDATA
61
EECS
63
ADBUS1
ADBUS2
ADBUS3
ADBUS4
ADBUS5
ADBUS6
ADBUS7
BDBUS0
BDBUS1
BDBUS2
BDBUS3
BDBUS4
BDBUS5
BDBUS6
BDBUS7
CDBUS0
CDBUS1
CDBUS2
CDBUS3
CDBUS4
CDBUS5
CDBUS6
CDBUS7
DDBUS0
DDBUS1
DDBUS2
DDBUS3
DDBUS4
DDBUS5
DDBUS6
DDBUS7
0?
GND
Vin
Vout
GND
LDO +3.3V
GND
100nF
100nF
GND
GND
+3.3V



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