Alcor AU9331 Manuale di riferimento tecnico - Pagina 12

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4.2 Sample Schematics

F1
FB
C1
B TYPE CONNECTOR
0.1UF
J1
1
VCC
2
DATA-
3
DATA+
4
GND
5
FGND1
VCC
D1
330
R4
VCC3.3
F3
FB
VCCA
C6
C7
0.1UF
0.1UF
F4
FB
VSSA
VCC3.3
F5
FB
VCCK
C9
C10
0.1UF
0.1UF
F6
FB
VSSK
Disclaimer: This schematic is for reference only.
Alcor Micro Corp. makes no warranty for the use of its
products and bears no responsibility for any error that
appear in this document. Specifications are subject to
change without notice.
VCC
VCC3.3
FB
F2
C2
R1
C3
C4
1UF
1UF
0.1UF
VSSIO
1.5K
R2
39
R3
39
GPO7
ACTIVITY LED
VCC
VCC5V
C5
0.1UF
VCC3.3
C12
SCK
SDA
0.1UF
SYSTEM ARCHITECTURE AND REFERENCE DESIGN
U4
1
28
NC
NC
XTAL1
GPO7
2
27
XTAL1
GPO7
XTAL2
GPI0
3
26
XTAL2
GPI0
VSSA
GPI1
4
25
AVSS
GPI1
VCCA
GPI2
5
24
AVCC
GPI2
VCC5V
VCCK
6
23
VCC5V
VCC
VSSK
7
22
VCCIO
VSS
SDCMD
8
21
USB_DM
SDCMD
SDCLK
9
20
USB_DP
SDCLK
SDA
SDDATA
10
19
SDA
SDDATA
SCK
SDCD
11
18
SCK
SDCD
VSSIO
SDWP
12
17
VSSIO
SDWP
13
16
TEST
PWD
14
15
NC
NC
AU9331-28SSOP
CARD POWER
VCC3.3
C13
0.1UF
R10
U2
47K
8
1
VCC
A0
7
2
WP
A1
6
3
SCL
A2
5
4
SDA
GND
24C08 or compatible
Size
Document Number
A
AU9331 USB SD/MMC CARD READER DEMO BOARD
Date:
Tuesday, May 21, 2002
VCC3.3
R12
1K
Q1
1N9012
C14
0.1UF
CARD POWER
CARD POWER
VCC3.3
R5
R6
R7
R8
10K
10K
100K
100K
JP1
9
1
SDCMD
2
SDCD
SDCD
3
4
SDCLK
5
6
SDDATA
7
8
SDWP
SDWP
SD SOCKET
18PF
C8
XTAL1
R9
Y1
12MHZ
1M
18PF
C11
XTAL2
Rev
2.0
Sheet
1
of
1
8