Sd Card Interface - Quectel SG368Z Series Hardware Design

.
NOTE
The VOL_UP/BOOT grounded circuit cannot be connected in series with resistors to prevent affecting
the internal voltage division.

4.3. SD Card Interface

SD card interface of the module complies with SD 3.0 specifications:
Table 14: Pins Description of SD Card Interface
Pin Name
SD_VDD
SD_CLK
SD_CMD
SD_DATA0
SD_DATA1
SD_DATA2
SD_DATA3
SD_DET
SG368Z_Series_Hardware_Design
VOL_UP/BOOT
Module
Figure 10: Reference Design of VOL_UP/BOOT
Pin No. I/O
262 PO
252 DO
247 DIO
246 DIO
251 DIO
256 DIO
257 DIO
261 DI
S1
Description
SD card power supply
SD card clock
SD card command
SDIO data bit 0
SDIO data bit 1
SDIO data bit 2
SDIO data bit 3
SD card hot-plug detect
Smart Module Series
Comment
Dedicated for SD card
power supply.
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