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LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. BB Circuit Technical brief
GW520 service manual
3.7 Memory
2Gbit NAND Flash & 1Gbit DDR SDRAM employed on GW520 with 16 bit parallel data bus thru
ADD(0) ~ ADD(24). The 1Gbit Nand Flash memory with DDR SDRAM stacked device family offers
multiple high-performance solutions.
[Figure 3.7-1] Memory circuit diagram
2Gb NAND +1Gb DDR SDRAM
TP107
C137
0.1u
TP109
TP112
0.1u
0.01u
C132
C141
TP106
R101
10K
C138
0.01u
TP114
TP110
0.1u
_WEN
N3
_WP
C131
VDDQ1
P8
VDDQ2
C5
VSS1
C9
VSS2
G2
VSS3
H10
VSS4
P7
VSS5
VSS6
P9
P5
VSSQ
_CAS
E6
G3
_CE
C6
_CLK
_CS
D5
F6
_RAS
F3
_RE
D6
_WED
M3
T1
T2
NC66
NC67
T3
T10
NC68
NC69
T11
B1
NC7
NC70
T12
B2
NC8
B3
NC9
R__B
E3
K7
UDQM
L7
UDQS
H2
VCCN1
C4
VDD1
C8
VDD2
P6
VDD3
P4
NC50
NC51
L2
NC52
M2
NC53
N2
NC54
P1
P2
NC55
P3
NC56
NC57
P11
P12
NC58
NC59
Q1
A12
NC6
Q2
NC60
NC61
Q3
NC62
Q10
NC63
Q11
NC64
Q12
NC65
J3
J4
NC37
J5
NC38
NC39
J6
NC4
A10
NC40
J7
NC41
J8
J9
NC42
J10
NC43
NC44
J11
K2
NC45
K4
NC46
K5
NC47
K8
NC48
NC49
K9
A11
NC5
K10
E2
H11
NC22
F2
NC23
NC24
F9
NC25
G6
NC26
G9
NC27
G10
NC28
H3
NC29
H4
NC3
A3
NC30
H5
H6
NC31
H7
NC32
H8
NC33
NC34
H9
J2
NC35
NC36
M11
K6
LDQM
LDQS
L6
NC1
A1
B10
NC10
B11
NC11
NC12
B12
NC13
C1
NC14
C2
NC15
C3
NC16
C11
NC17
C12
D1
NC18
D2
NC19
A2
NC2
D3
NC20
NC21
N7
P10
I_O0
N10
I_O1
L11
I_O10
I_O11
K11
I_O12
G11
I_O13
F11
E11
I_O14
D11
I_O15
M10
I_O2
L10
I_O3
F10
I_O4
E10
I_O5
D10
I_O6
I_O7
C10
N11
I_O8
I_O9
C7
DQ0
L4
DQ1
M4
DQ10
L8
M8
DQ11
N8
DQ12
L9
DQ13
M9
DQ14
N9
DQ15
DQ2
N4
DQ3
L5
M5
DQ4
DQ5
N5
DQ6
M6
N6
DQ7
M7
DQ8
DQ9
F7
A12
E7
A13
E9
A2
F4
A3
G4
A4
G8
A5
F8
A6
E8
D8
A7
A8
D9
A9
G7
L3
ALE
BA0
E5
BA1
F5
CKE
D7
CLE
K3
CLK
U100
H8BCS0SI0MAP_56M
EUSY0347503
A0
D4
A1
E4
G5
A10
A11
TP100
TP104
0.01u
C136
C134
0.01u
C135
0.1u
C139
0.1u
C140
1V8_SD
0.01u
TP108
C133
0.1u
TP111
TP101
3.3K
R104
C142
0.01u
TP105
1V8_SD
TP102
TP113
1V8_SD
_WP
SDCLKO
_BC0
LDQS
FCDP
_BC1
UDQS
_CAS
_NAND_CS
SDCLKI
_RAM_CS
_RAS
_RD
_WR
_WR
NAND_IO(5)
NAND_IO(6)
NAND_IO(7)
NAND_IO(8)
NAND_IO(9)
NAND_IO(10)
NAND_IO(11)
NAND_IO(12)
NAND_IO(13)
NAND_IO(14)
NAND_IO(15)
SD_ADD(0)
BA0
BA1
CKE
SD_ADD(1)
SD_DATA(7)
SD_DATA(8)
SD_DATA(9)
SD_DATA(10)
SD_DATA(11)
SD_DATA(12)
SD_DATA(13)
SD_DATA(14)
SD_DATA(15)
NAND_IO(0:15)
NAND_IO(0)
NAND_IO(1)
NAND_IO(2)
NAND_IO(3)
NAND_IO(4)
SD_ADD(9)
SD_ADD(10)
SD_ADD(11)
SD_ADD(12)
SD_ADD(13)
SD_ADD(0)
SD_ADD(1)
SD_DATA(0:15)
SD_DATA(0)
SD_DATA(1)
SD_DATA(2)
SD_DATA(3)
SD_DATA(4)
SD_DATA(5)
SD_DATA(6)
SD_ADD(0:13)
SD_ADD(2)
SD_ADD(3)
SD_ADD(4)
SD_ADD(5)
SD_ADD(6)
SD_ADD(7)
SD_ADD(8)
Содержание GW520
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