LG RH4820W Service Manual page 83

Hdd/dvd recorder
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Pin No.
Pin Name
55
DGND
-
56
MD13
3V
57
MD2
3V
58
MD12
3V
59
MD3
3V
60
DGND
-
61
MD11
3V
62
MD4
3V
63
MD10
3V
64
MD5
3V
65
DVD33
-
66
DGND
-
67
MD9
3V
68
MD6
3V
69
MD8
3V
70
MD7
3V
71
DVDD25
-
72
LDQM
3V
73
UDQM
3V
74
WE
3V
75
MCLK
3V
76
DVDD33
-
77
DGND
-
78
CAS
3V
79
MCKE
3V
80
RAS
3V
81
MA9
3V
82
DVDD25
-
83
MBA
3V
84
MA8
3V
85
MA10
3V
86
MA7
3V
87
DVDD33
-
Type
Description
-
-
Digital GND.(Buffer. Memory. Block)
I/O
Pull-up
Buffer memory , Interface data bus.
I/O
Pull-up
Buffer memory , Interface data bus.
I/O
Pull-up
Buffer memory , Interface data bus.
I/O
Pull-up
Buffer memory , Interface data bus.
-
-
Digital GND.
I/O
Pull-up
Buffer memory , Interface data bus.
I/O
Pull-up
Buffer memory , Interface data bus.
I/O
Pull-up
Buffer memory , Interface data bus.
I/O
Pull-up
Buffer memory , Interface data bus.
-
-
Digital power.[3.3V](Buffer. Memory. Block)
-
Digital GND.(Buffer. Memory. Block)
I/O
Pull-up
Buffer memory , Interface data bus.
I/O
Pull-up
Buffer memory , Interface data bus.
I/O
Pull-up
Buffer memory , Interface data bus.
I/O
Pull-up
Buffer memory , Interface data bus.
-
-
Digital power.[2.5V]
O
H
Low byte, data input/output mask control signal.
O
H
High byte, data input/output mask control signal.
O
H
Buffer memory , Interface write enable signal.
O
Pull-up
SDRAM clock output.
-
-
Digital power.[3.3V](Buffer. Memory. Block)
-
-
Digital GND.(Buffer. Memory. Block)
O
H
Buffer memory , Interface column address strobe control signal.
O
H
SDRAM clock enable control signal.
O
H
Buffer memory , Interface row address strobe control signal.
O
L
Buffer memory , Interface address bus.
-
-
Digital power.[2.5V]
O
L
Buffer memory , Interface bank address signal.
O
L
Buffer memory , Interface data bus.
O
L
Buffer memory , Interface data bus.
O
L
Buffer memory , Interface data bus.
-
-
Digital power.[3.3V](Buffer. Memory. Block)
3-103

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