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Cirrus-logic CDB5490U User Manual Page 41

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CDB5490U
DS923DB5 41
REV C2
02/17/11
SCHEM CDB5490U-Z NPb
3
3
Alan ZHAAlan ZHA
MCU+LCD+USB
CHK BY/DATEINC BY/DATEDESCRIPTIONREVECO#
SIZE B
OF
SHEET
PART #
DESCRIPTION:
DRAWN BY:
DATE:
ENGINEER:
SHEET TITLE:
+5V_EXT
GND1
+5V_USB +5V_EXT
LCD HEADER
600-00483-Z1
1
P0.1
2
P0.0
3
GND
4
D+
5
D-
6
VDD
7
REGIN
8
VBUS
9
RST/C2CK
10
P3.0/C2D
11
P2.7
12
P2.6
13
P2.5
14
P2.4
15
P2.3
16
P2.2
17
P2.1
18
P2.0
19
P1.7
20
P1.6
21
P1.5
22
P1.4
23
P1.3
24
P1.2
25
P1.1
26
P1.0
27
P0.7
28
P0.6
29
P0.5
30
P0.4
31
P0.3
32
P0.2
U6
C8051F342-GQ
1
VSS
2
VDD
3
NC
4
RS
5
R/W
6
E
7
DBO
8
DB1
9
DB2
10
DB3
11
DB4
12
DB5
13
DB6
14
DB7
15
BLA
16
BLK
LCD1
LCD 16P LMB162AFC-2
LCD
R37
0
R38
0
R42
0
C22
0.1uF
X7R
C23
0.1uF
X7R
C24
47uF
ELEC
C25
0.1uF
X7R
1
+5V
2
D-
3
D+
4
GND
5
GND
6
GND
J24
292304-1
USB
C26
22pF
4
3
1
2
D5
SP0503BAHTG
1
2
34
56
78
910
J25
HDR5X2
JTAG/C2
1
5
3
S1
RESET
R44
1K
C27
0.1uF
X7R
C28
1UF
X7R
R45 1K
R461K
J26
1
2
J27
1
5
3
S2
SWITCH
R47
5.1K
C29
0.1uF
X7R
12
D6
RED
EVENT
R48
680
12
Z2
6.8V
TP10
+3.3V_1
JP1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
R43
0
R56
0
NO POP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J22
HDR16X1-ML-TH
R57 20
TX
RX
DO1
LCD_E
LCD_R/W
LCD_RS
LCD_E
LCD_R/W
LCD_RS
+3.3V_1
+3.3V_1
+3.3V_1
+3.3V_1
USB_+5V
USB_+5V
+3.3V_1
+3.3V_1
GND1
GND1
GND1
GND1
GND1
GND1
GND1GND1
GND1
GND1
GND1 GND1
GND1 GND1
RESET
RESET
GND1
GND1
+5V
Figure 35. Schematic - Microcontroller and USB Interface
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