LG LG-A270 - Micro SD Card Interface

3. TECHNICAL BRIEF
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Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
R541
10p
10p
VA405 VA407
10p
VA406
DNI
TP400
SCHB1B0201
S400
ENSY0023802
GND
DAT2
CD_DAT3
CMD
VDD
CLK
VSS
CARD_DETECT
DAT0
COVER_DETECT1
DAT1
47K
R414
2
47K
R410
2
C409
1u
VIO28
R544
DNI
R413 470K
R412
100K
GND
TF_DATA0
TF_CMD
TF_CLK
TF_CHECK
3.15 Micro SD Card Interface
needed on the DAT3 signalUpon insertion of the memory card , the DAT3 signal will be transited from low to high. If the
memory card is removed, the DAT3 signal will return to logic low.