CM1423
Application Information
CHIPSET SIDE
DAT2
100k
A1
CM1423
FILTER+ESD
C1
CONNECTOR SIDE
DAT2
100k
DAT3
10k
CMD
A3
FILTER+ESD
C3
CMD
A2
FILTER+ESD
C2
CD/DAT3
SD Memory Card
(top view, card contacts
are on the bottom side)
VSS1
A4
C4
VDD
100k
CLK
A5
FILTER+ESD
C5
CLK
ESD
A6
C6
VSS2
9 = DAT2
1 = CD/DAT3
2 = CMD
3 = VSS1 (GND)
4 = VDD
5 = CLK
6 = VSS2 (GND)
7 = DAT0
8 = DAT1
100k
DAT0
100k
DAT1
A8
FILTER+ESD
C8
DAT1
A7
FILTER+ESD
C7
DAT0
Note: 100kΩ and 10kΩ pull-up resistors are not included in CM1423. Designer will
need to determine the appropriate pull-up resistor value for each design.
Figure 8. Typical SD Card Application
©
2005 California Micro Devices Corp. All rights reserved.
8
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
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Tel: 408.263.3214
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Fax: 408.263.7846
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www.calmicro.com
01/12/05
CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
