BBK 9903S, Руководство по обслуживанию

Страница: 28 / 94

MT1379
PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE
Pin Number Symbol Type Description
117 DQM0 Output
2~16MA, SR
Mask for DRAM input/output byte 0
118 BA1 Output
2~16MA, SR
DRAM bank address 0
119 RA10 Output
2~16MA, SR
DRAM address10
120 DVDD2 Power 2.5V power pin for internal digital circuitry
121 RA0 Output
2~16MA, SR
DRAM address 0
122 RA1 Output
2~16MA, SR
DRAM address 1
123 RA2 Output
2~16MA, SR
DRAM address 2
124 RA3 Output
2~16MA, SR
DRAM address 3
125 DVSS Ground Ground pin for internal digital circuitry
126 RD31 Inout
2~16MA, SR
PU/PD, SMT
DRAM data 31
127 RD30 Inout
2~16MA, SR
PU/PD, SMT
DRAM data 30
128 RD29 Inout
2~16MA, SR
PU/PD, SMT
DRAM data 29
129 RD28 Inout
2~16MA, SR
PU/PD, SMT
DRAM data 28
130 DVDD3 Power 3.3V power pin for internal digital circuitry
131 RD27 Inout
2~16MA, SR
PU/PD, SMT
DRAM data 27
132 RD26 Inout
2~16MA, SR
PU/PD, SMT
DRAM data 26
133 RD25 Inout
2~16MA, SR
PU/PD, SMT
DRAM data 25
134 RD24 Inout
2~16MA, SR
PU/PD, SMT
DRAM data 24
135 DVSS Ground Ground pin for internal digital circuitry
136 DQM3 Output
2~16MA, SR
Mask for DRAM input/output byte 3
137 DQM2 Output
2~16MA, SR
Mask for DRAM input/output byte 2