LC895125Q Datasheet, PDF (9/11 Pages) Sanyo Semicon Device – CD-ROM Driver with On-Chip SCSI Interface and Subcode Functions

LC895125Q, 895125W
Continued from preceding page.
Type: I: Input pin, O: Output pin, B: Bidirectional pin, P: Power supply pin, NC: No connection pin
Pin No.
Symbol
Type
Function
101
SEL
B
SCSI connection
102
C/D
B
103
V_SS1
P
104
REQ
B
SCSI connection
105
I/O
B
106
V_SS1
P
107
V_DD
P
108
V_SS0
P
109
V_DD
P
110
V_SS0
P
111
NC
112
V_SS0
P
113
V_SS0
P
114
V_SS0
P
115
NC
116
NC
117
C2PO
I
118
SDATA
I
CD DSP interface
119
BCK
I
120
LRCK
I
121
MCK
O Outputs the XTALCK0 frequency, or that frequency divided by 2.
122
V_SS0
P
123
EXCK
O
124
WFCK
I Subcode I/O
125
SBSO
I
126
V_DD
P
127
V_SS0
P
128
SCOR
I Subcode I/O
129
V_SS0
P
130
NC
131
ZRAS0
O Buffer RAM RAS signal output pin 0 (Normally, pin 0 is used)
132
ZRAS1
O Buffer RAM RAS signal output pin 1
133
ZCAS0
O Buffer RAM CAS signal output pin 0 (Normally, pin 0 is used)
134
ZCAS1
O Buffer RAM CAS signal output pin 1
135
ZOE
O Buffer RAM output enable
136
ZUWE
O Buffer RAM upper write enable
137
ZLWE
O Buffer RAM lower write enable
138
V_SS0
P
139
RA0
O
140
RA1
O
141
RA2
O Buffer RAM address signal outputs
142
RA3
O
143
RA4
O
144
V_DD
P
Note: 1. NC pins must be left open. Do not connect any signal to these pins.
2. Pin names that start with Z are negative-logic signals.
3. V_SS0 is the logic system ground and V_SS1 is the SCSI interface ground.
4. Applications that use DRAM must insert resistors in the CAS and RAS lines, connect capacitors between these lines and ground, and take any
other measures necessary to prevent undershoot in the DRAM related circuits.
5. Since these circuits include buffers that sink 48 mA, adequate noise prevention measures must be applied.
No. 5241-9/11