
Pin Functions
No. 6614-5/12
LC898023K
Pin type
I
Input
B
Bidirectional pin
NC
Not connected
O
Output
P
Power supply
A
Analog pin
Pin No.
Pin name
Type
Pin function
1
V
SS
RA4
P
Digital system ground (V
SS
)
2
O
3
RA5
O
4
RA6
O
CD-ROM encoder/decoder DRAM address lines
5
RA7
O
6
RA8
O
7
RA9
O
8
V
DD
V
SS
IO0
P
Digital system power supply (5 V)
9
P
Digital system ground (V
SS
)
10
B
11
IO1
B
12
IO2
B
CD-ROM encoder/decoder buffer RAM data lines
13
IO3
B
These pins have built-in pull-up resistors.
14
IO4
B
15
IO5
B
16
V
DD
V
SS
IO6
P
Digital system power supply (3.3 V)
17
P
Digital system ground (V
SS
)
18
B
19
IO7
B
CD-ROM encoder/decoder buffer RAM data lines
20
IO8
B
These pins have built-in pull-up resistors.
21
IO9
B
22
IO10
B
23
V
SS
V
DD
IO11
P
Digital system ground (V
SS
)
Digital system power supply (3.3 V)
24
P
25
B
26
IO12
B
27
IO13
B
CD-ROM encoder/decoder buffer RAM data lines
28
IO14
B
29
IO15
B
30
ATIPSYNC
I
ATIP SYNC detection signal
31
BIDATA
B
32
BICLK
B
ATIP demodulator I/O signals
33
WOBBLE
I
34
V
DD
V
SS
P
Digital system power supply (5 V)
35
P
Digital system ground (V
SS
)
ATIP CRC error signal
36
ACRCNG
O
37
WRITE
I
Write strategy signal control input
38
SSP2
O
Servo sampling pulse output
39
SSP1
O
Servo sampling pulse output
40
RAPC
O
Laser control sampling pulse output
41
WAPC
O
Laser control sampling pulse output
42
H11T0
O
Running OPC sampling pulse
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