參數(shù)資料
型號(hào)： FT4232HQ-TRAY
廠商： FTDI, Future Technology Devices International Ltd
文件頁數(shù)： 25/45頁
文件大?。?/td> 0K
描述： IC USB HS QUAD UART/SYNC 64-QFN
標(biāo)準(zhǔn)包裝： 260
系列： USBmadeEZ-FIFO
特點(diǎn)： USB 至 UART 和（或）SPI、I2C、JTAG
通道數(shù)： 4，QUART
FIFO's： 2048 字節(jié)
規(guī)程： RS232，RS422，RS485
電源電壓： 3 V ~ 3.6 V
帶自動(dòng)流量控制功能： 是
帶調(diào)制解調(diào)器控制功能： 是
帶CMOS： 是
安裝類型： 表面貼裝
封裝/外殼： 64-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 64-QFN 裸露焊盤（9x9）
包裝： 托盤
配用： 768-1031-ND - MOD USB HS FT4232H EVAL
其它名稱： FT4232HQ - TRAY
Copyright 2010 Future Technology Devices International Limited
31
Document No.: FT_000060
FT4232H QUAD HIGH SPEED USB TO MULTIPURPOSE UART/MPSSE IC
Datasheet Version 2.2
Clearance No.: FTDI#78
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.
Vin
Vout
GND
LDO +3.3V
GND
VBUS
1
D-
2
D+
3
GND
4
100nF
100nF 100nF
GND
4.7uF
GND
+1.8V
+3.3V
+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
+3.3V
12K
1K
GND
27pF
CS
1
SCL
2
D
3
Q
4
GND
5
ORG
6
DU
7
VCC
8
93C46
GND
+3.3V
2.2K
10K
1
3
12MHz
EECLK
EEDATA
GND
1
2
Ext. Power Supply
GND
G
N
D
1
OSCI
2
OSCO
3
4
G
N
D
5
REF
6
DM
7
DP
8
9
A
G
N
D
1
0
G
N
D
1
V
C
O
R
E
1
2
TEST
13
RESET#
14
G
N
D
1
5
ADBUS0
16
17
18
19
V
C
IO
2
0
21
22
23
24
G
N
D
2
5
26
27
28
29
30
V
C
IO
3
1
32
33
34
G
N
D
3
5
SUSPEND#
36
V
C
O
R
E
3
7
38
39
40
41
V
C
IO
4
2
43
44
45
46
G
N
D
4
7
48
VREGOUT
49
VREGIN
50
G
N
D
5
1
52
53
54
V
C
IO
5
6
55
57
58
59
PWREN#
60
EECLK
62
EEDATA
61
EECS
63
V
C
O
R
E
6
4
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
V
P
H
Y
V
P
L
0?
GND
3.3uF
GND
10K
4.7K
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