EMIF06-MSD02N16 查看數據表（PDF） - STMicroelectronics
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EMIF06-MSD02N16 Datasheet PDF : 14 Pages
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EMIF06-MSD02N16
Card detection circuit
Figure 9. Circuit routing for mechanical card detection
Card detect pin
Card detect host input
NC
Pin 1–DAT2
Pin 2–CD/DAT3
Pin 3–CMD
Pin 4– VCC
Pin 5–CLK
Pin 6–GND
Pin 7–DAT0
Pin 8–DAT1
Top le vel
DAT3 pul l-up
Card detect pul l-up
Bottom view
Card detect host input
Card detect pi n
NC
DAT2– Pin 1
CD/DAT3 –Pin 2
CMD– Pin 3
VCC – Pin 4
CLK – Pin 5
GND– Pin 6
DAT0– Pin 7
DAT1–Pin 8
Top view
Top level
DAT3 pul l-up
Card detect pull-up
In case of electrical card detection, the user must add a pull-down on the circuit connected to the CD/DAT3 pin of
the micro-SD/T-Flash pin as shown in Figure 10.
Figure 10. Electrical card detection
Host
contr oller
Pull -d own
resistor
GND
DAT3 (CD)
50 kΩ VDD
0
SD card
A pull-down of 470k is embedded into the EMIF06-mSD02N16. The routing corresponding to the electrical card
detection configuration is shown in Figure 11.
Figure 11. Circuit routing for electrical card detection
NC
PPini1n––1DAT2
PinP2in–2CD/DAT3
PinPi3n––3CMD
PinPi4n––4VCC
PiPn i5n––5CLK
PinP6in––6GND
PiPnin7–7DAT0
PiPn i8n––8DAT1
Bottom view
Top le vel
DAT3 pulll- down
NC
DAT–P2i–nP1in 1
CD/DA–PTi3n–2Pin 2
CM–DPi–nP3in 3
VC–CPin– P4in 4
CL–KPi–n P5in 5
GN–DPi–n P6in 6
DAT–P0i–n P7in 7
DAT–P1–inP8in 8
Top vie w
Top le vel
DAT3 pul l-down
DS5979 - Rev 2
page 6/14
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