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LC89512W Datasheet(PDF) 3 Page - Sanyo Semicon Device

Part No. LC89512W
Description  CD-ROM Error Correction LSI with Built-In SCSI Interface
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Maker  SANYO [Sanyo Semicon Device]
Homepage  https://www.sanyo-av.com/us/
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LC89512W Datasheet(HTML) 3 Page - Sanyo Semicon Device

   
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Pin Functions
Type: I: Input pin, O: Output pin, B: Bidirectional pin, P: Power supply pin, NC: No connection pin
No. 4852-3/5
LC89512W
Continued on next page.
Pin No.
Pin
Type
Function
1
DB7
B
SCSI connection
2
VSS1
P
3
DBP
B
SCSI connection
4
ATN
B
SCSI connection
5
VSS1
P
6
BSY
B
SCSI connection
7
ACK
B
SCSI connection
8
VSS1
P
9
RST
B
SCSI connection
10
MSG
B
SCSI connection
11
VSS1
P
12
SEL
B
SCSI connection
13
C/D
B
SCSI connection
14
VSS1
P
15
REQ
B
SCSI connection
16
I/O
B
SCSI connection
17
VSS0
P
18
IO0
B
19
IO1
B
20
IO2
B
21
IO3
B
Data buffer RAM data signals
22
IO4
B
These pins have built-in pull-up resistors.
23
IO5
B
24
IO6
B
25
IO7
B
26
INT1
O
SCSI block interrupt request signal output (set using a register)
27
VSS0
P
28
VSS0
P
29
D0
B
30
D1
B
31
D2
B
32
D3
B
Microprocessor data signals
33
D4
B
These pins have built-in pull-up resistors.
34
D5
B
35
D6
B
36
D7
B
37
INT0
O
Microprocessor interrupt request signal output
38
XTALCK
I
Crystal oscillator circuit input
39
XTAL
O
Crystal oscillator circuit output
40
VSS0
P
41
VDD
P
42
RA0
O
43
RA1
O
44
RA2
O
45
RA3
O
46
RA4
O
47
RA5
O
48
RA6
O
Data buffer RAM address signal outputs
49
RA7
O
50
RA8
O
51
RA9
O
52
RA10
O
53
RA11
O


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