Product Info

Smart Module Series
SC600Y&SC600T Hardware Design
SC600Y&SC600T_Hardware_Design 54 / 134
3.12. SD Card Interface
SC600Y/SC600T supports SD 3.0 specifications. The pin definition of the SD card interface is shown
below.
Table 14: Pin Definition of SD Card Interface
Pin Name Pin No. I/O Description Comment
SD_LDO11 63 PO Power supply for SD card
Vnorm=2.95V
I
O
max=800mA
SD_LDO12 179 PO Power supply for SD card’s pull-up circuit 1.8V/2.95V output.
SD_CLK 70 DO SD card clock
Control characteristic
impedance as 50Ω.
SD_CMD 69 IO SD card command
SD_DATA0 68 IO
SD card data
SD_DATA1 67 IO
SD_DATA2 66 IO
SD_DATA3 65 IO
SD_DET 64 DI SD card insertion detection Active low.
A reference circuit for SD card interface is shown as below.
Figure 18: Reference Circuit for SD Card Interface