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PINOUT SD

 

SD PINOUT

PIN

Name

 Function SD Mode Function SPI Mode
1 DATA3 Data bit 3 Chip Select/Slave Select [SS]
2 CMD Command Line Master Out/Slave IN [MOSI]
3 Vss Ground Ground
4 Vdd

+2.7 / +3.6

 +2.7 / +3.6
5 Clk Clock Clock [SCK]
6 Vss Ground Ground
7 DATA0 Data bit 0 Master In Slave Out [MISO]
8 DATA1 Data bit 1 Unused or IRQ
9 DATA2 Data bit 2 Unused

 

MicroSD PINOUT

PIN Name Function SD Mode Function SPI Mode
1 DATA2 Data bit 2 NC
2 CD/DATA3 Card Detect/ Data Bit 3 Chip Select
3 CMD Command Line Master Out/Slave In [MOSI]
4 Vdd +2.7v / +3.6v +2.7v / +3.6v
5 Clk Clock Clock
6 Vss Ground Ground
7 DATA0 Data bit 0 Master In/Slave Out [MISO]
8 DATA1 Data bit 1 Reserved