Sony CDX-V7800X Service Manual page 18

QQ
3 7 63 1515 0
Pin No. Pin Name
78 MDATA7
79 LDQM
80 UDQM
81 VDD
82 MWE
83 VSS
84 SD-CLK
85 SD-CAS
86 SD-RAS
87 VDD
88 SD-CS1
89 VSS
90 SD-CS0
91 VDD2.5
92 NC
93 VSS
94 NC
95 VDD
96 MADDR9
97 VSS
98 – 100 MADDR11, 8, 10
101 VDD
102 MADDR7
103 VSS
TE
L 13942296513
104 – 106 MADDR0, 6, 1
107 VDD
108 MADDR5
109 VSS
110 – 112 MADDR2, 4, 3
113 VDD
114 MADDR12
115 VSS
116 MADDR13
117 VDD2.5
118 MADDR14
119 VSS
120 – 122 MADDR15 – 17
123 VDD
124 MADDR18
125 VSS
126, 127 MADDR19, 20
128 ROM-CS
129 RESERVED
130 NC
131, 132 GND
133 RESERVED
134 VDD
www
135 RESERVED
136 VSS
137 – 141 RESERVED
.
142, 143 VDATA0, 1
144 VDD2.5
145 VDATA2
18
http://www.xiaoyu163.com
I/O
I/O Memory data 7 input/output
O SDRAM LDQM output
O SDRAM UDQM output
— Power supply pin (+3.3 V)
O SDRAM write enable output
— Ground
O SDRAM system clock output
O SDRAM column address output
O SDRAM row address output
— Power supply pin (+3.3 V)
O SDRAM bank select 1 output (Not used in this set)
— Ground
O SDRAM bank select 0 output
— Power supply pin (+2.5 V)
O Not used. (Open)
— Ground
O Not used. (Open)
— Power supply pin (+3.3 V)
O Memory address 9 output
— Ground
O Memory address 11, 8 and 10 output
— Power supply pin (+3.3 V)
O Memory address 7 output
— Ground
O Memory address 0, 6 and 1 output
— Power supply pin (+3.3 V)
O Memory address 5 output
— Ground
O Memory address 2, 4 and 3 output
— Power supply pin (+3.3 V)
O Memory address 12 output
— Ground
O Memory address 13 output
— Power supply pin (+2.5 V)
O Memory address 14 output
— Ground
O Memory address 15 – 17 output
— Power supply pin (+3.3 V)
O Memory address 18 output
— Ground
O Memory address 19 and 20 output
O ROM chip select output
I Fixed at L in this set.
O Not used. (Open)
— Ground
I Fixed at L in this set.
— Power supply pin (+3.3 V)
I Fixed at L in this set.
x ao u163
y
— Ground
I Fixed at L in this set.
i
O Video data bus 0 and 1 output
— Power supply pin (+2.5 V)
O Video data bus 2 output
http://www.xiaoyu163.com
2 9
8
Pin Description
Q Q
3 6 7 1 3 1 5
co
.
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9