Product Info

Smart Module Series
SC200R Series Hardware Design
SC200R_Series_Hardware_Design 50 / 125
3.12. SD Card Interface
SD Card interface of SC200R series module supports SD 3.0 protocol. The pin definition of SD card
interface is shown below.
Table 15: Pin Definition of SD Card Interface
A reference circuit for the SD card interface is shown below.
Figure 17: Reference Circuit for SD Card Interface
Pin Name Pin No. I/O Description Comment
SD_CLK 39 DO High-speed digital clock signal of SD card
50 Ω characteristic
impedance.
SD_CMD 40 IO Command signal of SD card
SD_DATA0 41 IO
High-speed bidirectional digital signals of
SD card
SD_DATA1 42 IO
SD_DATA2 43 IO
SD_DATA3 44 IO
SD_DET 45 DI SD card hot-plug detect Active low.
SD_LDO11 38 PO 2.95 V output power supply
Power supply for SD
card.
SD_LDO12 32 PO 1.8/2.95 V output power supply
Power supply for SD
card pull-up circuits.