LG GD910 - Memory

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. BB Circuit Technical brief
GD910 service manual
3.6 Memory
2Gbit NAND Flash & 1Gbit DDR SDRAM employed on GD910 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 3.6-1] Memory circuit diagram
Large Block Memory
(2048Mbit NAND / 1024 Mbit DDR SDRAM, 1.8V I/O)
0.1uC132
_RAS
F3
_RE
D6
_WED
M3
_WEN
N3
_WP
VDD1
C8
VDD2
P6
VDD3
P4
VDDQ1
P8
VDDQ2
C5
VSS1
C9
VSS2
G2
VSS3
H10
VSS4
P7
VSS5
VSS6
P9
P5
VSSQ
E6
_CAS
G3
_CE
C6
_CLK
_CS
D5
F6
Q10
NC63
Q11
NC64
Q12
NC65
T1
NC66
T2
NC67
T3
T10
NC68 NC69
T11
B1
NC7
NC70
T12
B2
NC8
B3
NC9
E3
R__B
K7
UDQM
L7
UDQS
H2
VCCN1
C4
NC48 NC49
K9
A11
NC5
K10
NC50
L2
NC51 NC52
M2
NC53
N2
NC54
P1 P2
NC55
P3
NC56 NC57
P11 P12
NC58
Q1
NC59
A12
NC6
Q2
NC60 NC61
Q3
NC62
NC33 NC34
H9 J2
NC35
NC36
J3
NC37
J4 J5
NC38 NC39
J6
NC4
A10
NC40
J7
NC41
J8 J9
NC42
J10
NC43
J11
NC44
K2
NC45
K4
NC46
K5
NC47
K8
NC19
A2
NC2
D3
NC20 NC21
E2
NC22
H11 F2
NC23 NC24
F9
NC25
G6
NC26
G9
NC27
G10
NC28
H3
NC29
H4 A3
NC3
NC30
H5 H6
NC31
H7
NC32
H8
I_O6
I_O7
C10
I_O8
N11
I_O9
M11
K6
LDQM
LDQS
L6
NC1
A1 B10
NC10
B11
NC11 NC12
B12
NC13
C1
NC14
C2 C3
NC15 NC16
C11
NC17
C12 D1
NC18
D2
M6
N6
DQ7
DQ8
M7
DQ9
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
F5
CKE
D7
K3
CLE
CLK
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
D4
A1
E4
A10
G5
A11
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
U100
H8BCS0SI0MAP_56M
A0
_RD
_NAND_CS
0.1u
C135
C133 0.1u
3.3K
R103
1V8_SD
1V8_SD
C136 0.1u
10KR102
1V8_SD
_WR
BA1
0.1u
C131
C134 0.1u
_CAS
_NAND_CS
SDCLKI
_RAM_CS
_RAS
_RD
_WR
_WR
_WP
FCDP
_BC1
UDQS
SD_ADD(0)
BA0
BA1
CKE
SD_ADD(1)
SDCLKO
_BC0
LDQS
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_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)
NAND_IO(5)
NAND_IO(6)
NAND_IO(7)
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_DATA(7)
SD_DATA(8)
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)
SD_ADD(9)
SD_ADD(10)