SYSTEM ARCHITECTURE AND REFERENCE DESIGN
8
4.2 Sample Schematics
SDDATA
GPI0
XTAL2
U4
AU9331-28SSOP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
NC
XTAL1
XTAL2
AVSS
AVCC
VCC5V
VCCIO
USB_DM
USB_DP
SDA
SCK
VSSIO
TEST
NC
NC
PWD
SDWP
SDCD
SDDATA
SDCLK
SDCMD
VSS
VCC
GPI2
GPI1
GPI0
GPO7
NC
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.
VSSA
C8
18PF
VCC3.3
CARD POWER
SDCD
A
1
1
Tuesday, May 21, 2002
2.0
AU9331 USB SD/MMC CARD READER DEMO BOARD
Size
Document Number
Rev
Date:
Sheet
of
SDCMD
VCCA
VCC
C1
0.1UF
C10
0.1UF
SDDATA
C2
1UF
SDCMD
SDA
Q1
1N9012
VCCA
VCC
VSSK
R6
10K
F1
FB
R5
10K
VSSK
R12
1K
C14
0.1UF
C3
1UF
R10
47K
SDWP
GPI1
C6
0.1UF
C4
0.1UF
VSSIO
F4
FB
XTAL1
VCCK
F5
FB
F3
FB
VCC3.3
R9
1M
C7
0.1UF
D1
C12
0.1UF
VCC3.3
C5
0.1UF
ACTIVITY LED
SDWP
R4
330
R1
1.5K
GPI2
VSSA
SCK
VSSIO
Y1
12MHZ
VCC3.3
VCC3.3
C13
0.1UF
C11
18PF
CARD POWER
GPO7
J1
1
2
3
4
5
VCC
DATA-
DATA+
GND
FGND1
XTAL1
VCC5V
XTAL2
B TYPE CONNECTOR
JP1
SD SOCKET
1
2
8
SDCD
3
4
5
6
9
7
SDWP
R8
100K
SDCLK
C9
0.1UF
SDA
F6
FB
R3
39
R7
100K
VCC5V
SDCD
U2
24C08 or compatible
1
2
3
4
5
6
7
8
A0
A1
A2
GND
SDA
SCL
WP
VCC
SCK
CARD POWER
F2
FB
GPO7
VCC3.3
VCCK
SDCLK
R2
39
VCC3.3
VCC
Содержание AU9331
Страница 4: ...TABLE OF CONTENTS i This page Intentionally Left Blank ...
Страница 6: ...INTRODUCTION 2 This Page Intentionally Left Blank ...
Страница 8: ...APPLICATION BLOCK DIAGRAM 4 This Page Intentionally Left Blank ...
Страница 18: ...ELECTRICAL CHARACTERISTICS 14 This Page Intentionally Left Blank ...
Страница 19: ...MECHANICAL INFORMATION 15 6 0 Mechanical Information ...