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MS
when SD card insert, =>>pull up
SD and MMC
SCHEMATIC DIAGRAM
MODEL NO.: SX-3083TVD CARD SCH
NOTE: subject to change without notice for improvement!
R_MS_D2
R_SD_D2/MMC_RST
R_MS_D0
R_SD_D0/MMC_SI
CARD_SENSE
R_MS_D3
R_SD_D3/MMC_CS
USB_DM
R_MS_D2
R_MS_D1
R_MS_D3
R_MS_D0
R_MS_BS
R_SD_CMD/MMC_SO
R_SD_D0/MMC_SI
SD_INS
CARD_RST
R_MS_CLK
R_SD_CLK/MMC_SCK
USB_DP
R_MS_D1
R_SD_D1/MMC_WP
CARD_RST
USB_DP
USB_DM
CARD_SENSE
R_SD_CMD/MMC_SO
R_SD_D0/MMC_SI
SD_INS
R_SD_CLK/MMC_SCK
R_SD_D1/MMC_WP
R_MS_BS
R_SD_D3/MMC_CS
R_SD_CLK/MMC_SCK
R_SD_D1/MMC_WP
R_SD_CMD/MMC_SO
R_SD_D3/MMC_CS
R_SD_D2/MMC_RST
R_MS_CLK
SD_INS
R_SD_D2/MMC_RST
Pull-high+3V
+3.3V
Pull-high+3V
+3.3V
CARD+3V
CARD+3V
+3.3V
VCC5
Pull-high+3V
DVCC3
DVCC3
+3.3V
+3.3V
Pull-high+3V
Pull-high+3V
VCC5
GND
GND
GND
CARD+3V
CARD+3V
GND
GND
GND
CARD+3V
GND
CARD+3V
GND
GND
EC3
47uF/16V
R4
4.7K
R9
10K
R14
30K
R10
10K
L2
FB
EC1
100uF/16V
R15
30K
R7
15K
R12
30K
0.1uF
BC4
D1
1N4148
CN1
CARD&USB
1
2
3
4
5
6
7
8
9
10
11
12
13
R17
200K
R11
30K
0.1uF
BC2
R8
15K
R1
10K
CN2
USB104
1
2
3
4
5
6
1
2
3
4
GND
GND
L1
FB
0.1uF
BC1
R6
4.7K
EC2
100uF/16V
R2
10K
R5
22
Q1
AO3401
2
3
1
R13
10K
F1
FUSE(1206,500mA)
1
2
Q2
2N3906
R3
22
0.1uF
BC3
R16
2K
SD CARD
J1
10
9
5
7
6
8
13
11
14
12
15
16
DAT3
CMD
VSS
VDD
CLK
VSS2
DAT1
DAT2
CD
DAT0
WP
GND