Hitachi HTD-K185UK, Service Manual

Page: 7 / 48

83 RD3 Inout DRAM data 3
84 RD2 Inout DRAM data 2
85 RD1 Inout DRAM data 1
86 RDO Inout DRAM data 0
87 RWE#
Output
2-16MA, SR
DRAM Write enable, active low
88 CAS#
Output
2-16MA, SR
DRAM column address strobe, active low
89 RAS#
Output
2-16MA, SR
DRAM row address strobe, active low
90 RCS#
Output
2-16MA, SR
DRAM chip select, active low
91 BAO
Output
2-1 6MA, SR
DRAM bank address 0
92 DVSS Ground Ground pin for internal digital circuitry
93 RD15
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 15
94 RD14
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 14
95 RD13
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 13
96 RD12
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 12
97 DVDD3 Power 3.3V power pin for internal digital circuitry
98 RD11
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 11
99 RD10
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 10
100 RD9
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 9
101 RD8
Inout 2-16MA,
SR PU/PD,
SMT
DRAM data 8
102 DVSS Ground Ground pin for internal digital circuitry
103 CLK
Output
2-1 6MA, SR
DRAM clock
104 CLE
Output
2-16MA, SR
DRAM clock enable
105 RA11
Output
2-16MA, SR
DRAM address bit 1 1 or audio serial data 3 (channel 7/8)
106 RA9
Output
2-16MA, SR
DRAM address 9
107 RA8
Output
2-16MA, SR
DRAM address 8
108 DMVDD3 Power 3.3V Power pin for DRAM clock circuitry
109 DMVSS Ground Ground pin for DRAM clock circuitry
110 RA7
Output
2-16MA, SR
DRAM address 7
111 DVDD3 Power I % 3.3V power pin for internal digital circuitry