Microchip Technology MCP3911, Руководство пользователя

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Schematics and Layouts

2012 Microchip Technology Inc. DS52033A-page 21
A.5 SCHEMATIC - LCD AND UART
GND
USB
DATAVIEW
PORT
USB-B-Mini
SMD
ID
4
VBUS
1
GND
5
D-
2
D+
3
ID V
BU
S
GND D- D+
J15
5V_USB
RF3/U1TX
U8-RX
RF2/U1RX
GND
GND
GND
MCP2200
U9-RX
VDD
1
OSC1
2
OSC2
3
RST
4
GP7/TxL
ED
5
GP7/RxL
ED
6
GP5
7
GP4
8
GP3
9
TX
10
RTS
11
RX
12
CTS
13
GP2
14
GP1
15
GP0
16
VUSB
17
D-
18
D+
19
VSS
20
VDD OSC
1
OSC
2
RS
T
G
P7/Tx
L
ED
G
P7
/RxL
ED
G
P5
G
P4
G
P3
TX
RT
S
R
X
C
T
S
G
P
2
G
P
1
G
P
0
VUSB
D
-
D
+
VSS
MCP2200
SSOP-20
U9
LED
RD/GN
SMD
2 1
4 3
GREEN
RED
LD6
HDR
M
1x3
VERT
123 J16
0.1uF 0603 C37
12MHz
2
3
1
X3
0.1uF 0603 C36
4.7k
5%
0603
R58
5V_USB
VEE
RB15/PMPA0
RD5/PMPRD
RD4/PMPWR
GND
RB15/PMPA0
RD5/PMPRD
RD4/PMPWR
VEE
GND
RE7/PMPD7 RE6/PMPD6 RE5/PMPD5 RE3/PMPD3 RE2/PMPD2 RE1/PMPD1 RE0/PMPD0 RE7/PMPD7 RE6/PMPD6 RE5/PMPD5 RE4/PMPD4 RE2/PMPD2 RE1/PMPD1 RE0/PMPD0
GND
RE4/PMPD4 RE3/PMPD3
GND GND
0.1uF
0603
C30
3.3D
3.3D
5%
4.7k 0603
R55
TX RX
RC14 RD15/U1RTS
TX RX
GND GND
RC13
RF3/U1TX
U8-RX
GND
RD14/U1CTS
0.1uF 0603 C32
0.1uF
0603
C33
0.1uF
0603
C34
0.1uF 0603
C35
GND
GND
3.3D
3.3D
0.1uF 0603 C31
GND
GND GND
5%
1k
0603
R56
DB-9-RA_F
1 2 3 4 5 6 7 8 9
J14
C2+
5
C2-
6
V-
7
T2OUT
8
R2IN
9
R2OUT
10
INVALI
D
11
T2IN
12
T1N
13
FORCE_ON
14
R1OUT
15
R1IN
16
T1OUT
17
GND
18
VCC
19
FORCE_OFF
20
EN
1
C1+
2
V+
3
C1-
4
C
2
+
C
2
-
V- T2OUT R
2
IN
R2OUT
INVALI
D
II
T2
IN
T
1N
FORCE
_
ON
R1OUT
R1
IN
T1OUT
G
ND
V
CC
F
O
R
C
E
_O
FF
EN C
1
+
V+ C
1
-
SN75C3223PWR
U8
0
0603 DNP
R52
0
0603
R53
5V
R
B15
/PMPA0
R
D5
/PMPRD
R
D4
/PMPWR
RE
7/
PMPD
7
RE6
/PMPD
6
RE5
/PMPD
5
RE3
/PMPD3
RE2
/PMPD2
RE1
/PMPD
1
RE0
/PMPD0
RE4
/PMPD4
G
ND
3.3D
510
5%
0603
R54
5%
1k
0603
R57
GND
1
VCC
2
VC
3
RS
4
R/W
5
E
6
DB0
7
DB1
8
DB2
9
DB3
10
DB4
11
DB5
12
DB6
13
DB7
14
GND V
C
C
VC RS R/W E
DB
0
DB
1
DB
2
DB
3
DB
4
DB5 DB
6
DB7
TM162JCAWG1
DNP
L
CD2
VCC
13
VEE
14
RS
1
R/W
2
E
3
GND
12
GND
15
V
C
C
VEE RS R/W E G
ND
GND
DB0
4
DB1
5
DB2
6
DB3
7
DB4
8
DB5
9
DB6
10
DB7
11
CG1626-SGR1 L
CD1
USB_P USB_N
USB_P USB_N
GND
GND
1k
5%
0603
R59
1k
5%
0603
R60
B2
1
GND
2
VCCA
3
A2
4
A1
5
OE
6
VCCB
7
B1
8
B
2
GN
D
V
CC
A
A
2
A
1
O
E
V
CCB
B
1
TXS0102
U11
U9-RX
GND
5V_USB
3.3D
5V_USB
USB_EN
3.3D
5V_USB
0
0603 DNP
R52
22