giao tiếp USB_RS485

1. 1 2 3 4
A A
+5V
P0LED101
P0LED102
P0R02
+5V
330R
P0100nF02
0.1uF
P010uF01 P010uF02
P0R01
470R
P0001uF01
P0001uF02 P0470R01 P0470R02
100nF 10uF
P0100nF01
+5V
B 3 8 B
30
26
13
P0SN75176BD08
P0FT232BM026
P0SN75176BD03
P0FT232BM03
DE VCC
3
P0FT232BM030
P0FT232BM013
10nF 4
P0SN75176BD04
D
6
P0SN75176BD06
A 1
AVCC
VCC
VCC
VCCIO
P010nF01 P010nF02 P0C301 P0C302 P001
6 P0FT232BM06 25 P0R?01
P0FT232BM025 2
P0SN75176BD02
3V3OUT TXD P0R?02 RE P002 2
33nF 24 P0R?01
P0FT232BM024 1 7
P0SN75176BD07
P0R102
P0SN75176BD01
27R RXD P0R?02 R B P003 3
USB 8 P0FT232BM08 23
P0FT232BM023
P027R01 P027R02 USBDM RTS#
22
P0FT232BM022 5
P0SN75176BD05
4 P0USB04
27R CTS# GND
7 21
P0FT232BM021
P0R101
P0FT232BM07
3 P0USB03 P027R01 P027R02 USBDP DTR#
+5V FT232BM 20
P0FT232BM020 SN75176BD 120R
2 P0USB02
1K5 DSR#
5 P0FT232BM05 19
P0FT232BM019
1 P0USB01 P0Res201 P0Res202 P01K501 P01K502 RSTOUT# DCD#
4 P0FT232BM04 18
P0FT232BM018
RESET# RI#
27pF
27P0FT232BM027 16 P0FT232BM016
XTIN TXDEN
P06MHz02
P033pF01 P033pF02 P0R101 P0R102
P0FT232BM012 12
TXLED#
2
28 P0FT232BM028 P0FT232BM011 11
XTOUT RXLED# D1
6MHz 32P0FT232BM032 330R
EECS
P06MHz01
1 P0FT232BM01 P0FT232BM014 14
EESK PWRCTL +5V
1
P0D102 P0D101 P0R01 P0R02
2 P0FT232BM02 P0FT232BM015 15
EEDATA PWREN#
AGND
P027pF01 P027pF02
31P0FT232BM031 10
GND
GND
P0FT232BM010
TEST SLEEP#
29 P0FT232BM029
C 27pF C
P0FT232BM017
9P0FT232BM09
P0D202 P0D201 P0R01 P0R02 +5V
330R
17
D2
EEPROM +5V
1 CS VCC 8
P02K202
2 CK DC 7
2K2 3 DIN ORG 6
P010K02 P02K201
4 DOUT GND 5
10K AT93C46
+5V
P010K01
Title
D D
Size Number Revision
A
Date: 4/8/2011 Sheet of
File: C:Program Files..usb rs485.SchDoc Drawn By:
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