Figure 35. Schematic - Microcontroller And Usb Interface - Cirrus Logic CDB5490U Manual

LCD HEADER
LCD1
J22
LCD 16P LMB162AFC-2
HDR16X1-ML-TH
1
1
VSS
2
2
VDD
3 3
NC
4 4
RS
5 5
R/W
6
6
E
7
7
DBO
8
8
DB1
9
9
DB2
10 10
DB3
11
11
DB4
12
12
DB5
13
13
DB6
14 14
DB7
15 15
BLA
16
16
BLK
LCD
GND1
+3.3V_1
R44 +3.3V_1
J25
1K
HDR5X2
1 2
S1
3 4
1 3
5 6
5
7 8
9 10
RESET
R45 1K
JTAG/C2
C27 C28
GND1 GND1
X7R X7R
0.1uF 1UF
R56
0
NO POP
JP1
GND1
JP2
JP3
JP4
GND1

Figure 35. Schematic - Microcontroller and USB Interface

+3.3V_1
GND1
TP10
+3.3V_1
C22
X7R
0.1uF
LCD_RS
LCD_R/W
LCD_E
R57 20
+3.3V_1
D5
1 4
3
2
GND1
SP0503BAHTG
J24
292304-1
5
GND
GND1
1
+5V
2
D-
3
D+
4
GND
6 C26
GND
22pF
1K R46
USB
GND1
GND1
JP5
JP6
JP7
JP8
GND1
ECO# REV DESCRIPTION
+5V
6.8V
Z2
2
+5V_EXT
1 2
J26
1
GND1
J27
GND1
GND1 GND1
U6
6 7
VDD REGIN
18 2
P2.0 P0.0
17 1
P2.1 P0.1
16 32
P2.2 P0.2
R37
15 31
P2.3 P0.3
14 30
P2.4 P0.4
R38
13 29
P2.5 P0.5
12 28
P2.6 P0.6 R42
11 27
P2.7 P0.7
10 26
P3.0/C2D P1.0
9 25
RST/C2CK P1.1
R43
24
P1.2
8 23
VBUS P1.3
5 22
D- P1.4
4 21
D+ P1.5
20
P1.6
3 19
GND P1.7
R48
+3.3V_1
C8051F342-GQ 680
R47
5.1K
USB_+5V
S2
3
SWITCH
C29
X7R
+3.3V_1
0.1uF
GND1
PART #
600-00483-Z1
DESCRIPTION:
SCHEM CDB5490U-Z NPb
SHEET TITLE: MCU+LCD+USB
DRAWN BY: Alan ZHA
DATE: 02/17/11
INC BY/DATE CHK BY/DATE
RX
TX
DO1
RESET
1
5
GND1
REV C2
ENGINEER: Alan ZHA
SIZE B 3
3
OF
SHEET