RK3288 Hardware Design Guide
10 TF Card
10.1 Schematic
The memory card socket adopted by reference diagram published by RK is TF card. If need
to be changed to SD card, please note the package of socket.
TF card is compatible with SD 2.0/3.0, module power supply VCCIO_S is configurable and
the default voltage of VCCIO_SD and VCC_SD is 3.3V. When SD2.0 card is inserted, VCC_SD
and VCCIO_SD is always 3.3V, while for SD3.0 card, VCC_SD will turn to 1.8V to meet
high-speed card. LDO in the card supplies 1.8V for T card power VCC_SD.
When SD 3.0 memory card is used, please add resistors RP8100 and R8107, and pull
them up to Power VCCIO_SD to increase data stability, as shown in Fig 10-1.
If SD 3.0 memory card need to be supported, please select ESD with junction capacitor
less than 10pF, as shown in Fig 10-1.
Fig 10-1
Summary of Contents for RK32 Series
Page 1: ...RK3288 Hardware Design Guide RK3288 Hardware Design Guide Revision 1 2 Jun 18 2014...
Page 2: ...RK3288 Hardware Design Guide Revision History Date Revision Description 2014 12 15 1 2...
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