LC895126 Datasheet, PDF (6/7 Pages) Sanyo Semicon Device – CD-ROM Decoder with Built-in SCSI Interface

LC895126
Continued from preceding page.
Pin No. Symbol Type
Function
132
IO13
B
133
IO12
B
134
IO11
B Buffer RAM data I/O.
135
IO10
B Built in pull-up resistors.
136
IO9
B
137
IO8
B
138
V_SS0
P
139
IO7
B
140
IO6
141
IO5
142
IO4
B
Buffer RAM data I/O.
B
Built in pull-up resistors.
B
143
IO3
B
144
V_DD
P
NC pins must be left open.
Pin names that start with a ‘Z’ are negative logic (i.e. active low) pins.
V_SS0 is the logic system ground, and V_SS1 is the SCSI interface system ground.
If DRAM is used, undershoot prevention measures, such as inserting resistors in the RAS and CAS lines and inserting capacitors to ground, must be taken.
Since this IC includes buffers that sink 48 mA, applications must take adequate noise reduction measures.
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