1
1
2
2
3
3
4
4
D
D
C
C
B
B
A
A
SCH Rev.
Sheet:
of
8 devices
Model No.:
Title:
Date:
Approved By:
Drawn By:
v6.0
3
5
2018-08-27
USB
8DEV_1601_0006.PrjPcb
0402
R15
27R
0402
R16
27R
C20
10pF
C21
10pF
GND
GND
USB_D_N
USB_D_P
GND
5V
W
B
L2
60Z/100MHz
WB
L3
60Z/100MHz
GND
C18
0.1uF
GND
GND
C_USB_D_N
C_USB_D_P
C_USB_D_N
C_USB_D_P
JT1
T_jump smd connected
JT2
T_jump smd connected
C_USB_D_N
C_USB_D_P
USB_D_N
USB_D_P
0402
R19
27R
0402
R20
27R
GND
5V
W
B
L4
60Z/100MHz
C26
10uF 10V
C25
0.1uF
GND
GND
5V
04
02
R21
4.7K
C27
10pF
C28
10pF
GND
GND
GND
WB
L5
60Z/100MHz
GND
3.3V_FTDI
3.3V_FTDI
3.3V_FTDI
C22
0.1uF
GND
C23
0.1uF
C24
4.7uF 6.3V
GND
GND
0
4
0
2
R18
10K
0
4
0
2
R17
10K
3.3V_FTDI
D4
LTST-C190CKT
D3
LTST-C190KGKT
1/8
R22
270R
1/8
R23
270R
TXLED
RXLED
3.3V_FTDI
C_UART_TX
C_UART_RX
USB MASTER
USB SLAVE (USB <-> UART)
USB_D_N
USB_D_P
USB_D_N
USB_D_P
C_UART_TX
C_UART_RX
UART_TX
UART_RX
UART_TX
UART_RX
JT3
T_jump smd connected
JT4
T_jump smd connected
UART_TX
UART_RX
C_UART_TX
C_UART_RX
SHIELD
M
in
i U
S
B
-B
+5V
1
D-
2
D+
3
NC
4
GND
5
6
J7
14850_USB mini B
3V3OUT
8
USBDM
7
USBDP
6
RESET#
9
G
N
D
3
G
N
D
1
3
G
N
D
1
7
CBUS3
14
CBUS2
5
CBUS1
11
CBUS0
12
TXD
15
RXD
2
RTS#
16
CTS#
4
V
C
C
1
0
V
C
C
IO
1
U3
FT230XQ
6
5
SH
IE
LD
US
B-A
-R
ec
ep
ta
cle
+5V
1
D-
2
D+
3
GND
4
SH
IE
LD
J6
292303-1
GND
C19
22uF 6.3V
