Sharp AM-900 Service Manual page 76

AM-900U
OA-2000 (IC1) Terminal description (2/4)
No. Pin name
65 CORE_VDD18
66 VSS
67 GP_F0/PO_PAGE_SYNC
68 GP_F1/PO_LINE_SYNC
69 GP_F2
70 GP_F3
71 IO_VDD33
72 GP_F4
73 GP_F5
74 GP_F6
75 GP_F7
76 VSS
77 ROM_CS_L
78 SDRAM_DATA0
79 IO_VDD33
80 SDRAM_DATA1
81 SDRAM_DATA2
82 SDRAM_DATA3
83 SDRAM_DATA4
84 CORE_VDD18
85 VSS
86 SDRAM_DATA5
87 SDRAM_DATA6
88 SDRAM_DATA7
89 SDRAM_DATA8
90 IO_VDD33
91 SDRAM_DATA9
92 SDRAM_DATA10
93 SDRAM_DATA11
94 SDRAM_DATA12
95 VSS
96 SDRAM_DATA13
97 SDRAM_DATA14
98 SDRAM_DATA15
99 SDRAM_DQMA0
100 IO_VDD33
101 SDRAM_DQMA1
102 SDRAM_CS0_L
103 SDRAM_CKE
104 SDRAM_CLK
105 VSS
106 SDRAM_ADDR12
107 SDRAM_ADDR11
108 SDRAM_ADDR10
109 SDRAM_ADDR9
110 IO_VDD33
111 SDRAM_ADDR8
112 SDRAM_ADDR7
113 SDRAM_ADDR6
114 SDRAM_ADDR5
115 VSS
116 SDRAM_ADDR4
117 IO_VDD33
118 SDRAM_CS1A_L
119 SDRAM_ADDR3
120 CORE_VDD18
121 VSS
122 SDRAM_ADDR2
123 SDRAM_ADDR1
124 SDRAM_ADDR0
125 SDRAM_BA1
126 IO_VDD33
127 SDRAM_BA0
128 SDRAM_RAS_L
I/O
+1.8V digital Power
GND digital Ground
Bidirectional General Purpose IO/Print Page Synchronous Input
Bidirectional General Purpose IO/Print Line Synchronous Input
Bidirectional General Purpose IO
Bidirectional General Purpose IO
+3.3V digital Power
Bidirectional General Purpose IO
Bidirectional General Purpose IO
GND digital General Purpose IO
+1.8V digital General Purpose IO
GND digital Ground
Output ROM Chip Select
Bidirectional SDRAM Data Bus
+3.3V digital Power
Bidirectional SDRAM Data Bus
Bidirectional SDRAM Data Bus
Bidirectional SDRAM Data Bus
Bidirectional SDRAM Data Bus
+1.8V digital Power
GND digital Ground
Bidirectional SDRAM Data Bus
Bidirectional SDRAM Data Bus
Bidirectional SDRAM Data Bus
Bidirectional SDRAM Data Bus
+3.3V digital Power
Bidirectional SDRAM Data Bus
Bidirectional SDRAM Data Bus
Bidirectional SDRAM Data Bus
Bidirectional SDRAM Data Bus
GND digital Ground
Bidirectional SDRAM Data Bus
Bidirectional SDRAM Data Bus
Bidirectional SDRAM Data Bus
Output SDRAM IO Mask
+3.3V digital Power
Output SDRAM IO Mask
Output SDRAM Chip Select 0
Output SDRAM Clock Enable
Output SDRAM Clock
GND digital Ground
Bidirectional SDRAM Address Bus
Bidirectional SDRAM Address Bus
Bidirectional SDRAM Address Bus
Bidirectional SDRAM Address Bus
+3.3V digital Power
Bidirectional SDRAM Address Bus
Bidirectional SDRAM Address Bus
Bidirectional SDRAM Address Bus
Bidirectional SDRAM Address Bus
GND digital Ground
Bidirectional SDRAM Address Bus
+3.3V digital Power
Output SDRAM Chip Select 1
Bidirectional SDRAM Address Bus
+1.8V digital Power
GND digital Ground
Bidirectional SDRAM Address Bus
Bidirectional SDRAM Address Bus
Bidirectional SDRAM Address Bus
Bidirectional SDRAM Bank Select Address
+3.3V digital Power
Bidirectional SDRAM Bank Select Address
Bidirectional SDRAM Row Address Strobe Command
5 – 3
Pin Description