Product manual

)N ADDITION PIN  MUST BE CONNECTED TO THE SUPPLY VOLTAGE AND PINS  AND  MUST BE

CONNECTED TO THE SUPPLY GROUND

3.12.2 SD Card Interface

"EFORE WE CAN USE AN 3$ CARD IN AN ELECTRONIC CIRCUIT WE HAVE TO KNOW THE INTERFACE SIGNAL

LEVELS 4ABLE  SHOWS THE INPUTnOUTPUT VOLTAGE LEVELS OF THE STANDARD 3$ CARDS

!CCORDING TO 4ABLE 

-INIMUM LOGIC  OUTPUT VOLTAGE 6/(   6

Figure 3.12: SD Card in SD Bus Mode

Microcontroller

CLK

D0-D3

SD card

Vss

Vdd

D0-D3

CMD

Memory Card 119