lc895124 Sanyo Semiconductor Corporation, lc895124 Datasheet - Page 4

• Manufacturer Part Number: lc895124
• Description: Cd-rom Driver With On-chip Scsi Interface
• Manufacturer: Sanyo Semiconductor Corporation

Pin Functions
Note: 1. NC pins must be left open. Do not connect any signal to these pins.
Pin No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
1
2
3
4
5
6
7
8
9
2. Pin names that start with Z are negative-logic signals.
3. V
4. Applications that use DRAM must insert resistors in the CAS and RAS lines, connect capacitors between these lines and ground, and take any
5. Since these circuits include buffers that sink 48 mA, adequate noise prevention measures must be applied.
other measures necessary to prevent undershoot in the DRAM related circuits.
SS0
RA10 (IO14)
RA11 (IO13)
RA12 (IO12)
RA13 (IO11)
RA14 (IO10)
RA9 (IO15)
RA15 (IO9)
RA16 (IO8)
XTALCK0
is the logic system ground and V
Symbol
ZRAS0
ZRAS1
ZCAS0
ZCAS1
XTAL0
TEST0
TEST1
TEST2
ZUWE
ZLWE
V
V
V
V
V
V
V
V
V
MCK
ZOE
RA0
RA1
RA2
RA3
RA4
V
RA5
RA6
RA7
RA8
V
V
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
SS0
SS0
SS0
SS0
SS0
SS0
SS0
SS0
SS0
DD
DD
DD
Type
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
P
P
P
P
P
P
P
B
B
B
B
P
B
B
B
B
B
B
B
P
P
B
B
B
B
B
P
P
I
I
I
I
Buffer RAM RAS signal output pin 0 (Normally, pin 0 is used)
Buffer RAM RAS signal output pin 1
Buffer RAM CAS signal output pin 0 (Normally, pin 0 is used)
Buffer RAM CAS signal output pin 1
Buffer RAM output enable
Buffer RAM upper write enable
Buffer RAM lower write enable
Buffer RAM address signal outputs
Buffer RAM address signal outputs
Address outputs for the buffer RAM or data I/O pins
The pin circuits include pull-up resistors.
Address outputs for the buffer RAM or data I/O pins
The pin circuits include pull-up resistors.
Buffer RAM data I/O. The pin circuit includes a pull-up resistor.
Address outputs for the buffer RAM or data I/O pins
The pin circuits include pull-up resistors.
Crystal oscillator input
Crystal oscillator output
Outputs the XTALCK0 frequency, or that frequency divided by 2.
Test pins. These pins must be connected to V
SS1
is the SCSI interface ground.
Type: I: Input pin, O: Output pin, B: Bidirectional pin, P: Power supply pin, NC: No connection pin
LC895124
SS0
.
Function
Continued on next page.
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