Ordering number : EN
*
5241
22896HA (OT) No. 5241-1/11
Functions
CD-ROM ECC function, subcode read function, SCSI
interface
Features
On-chip SCSI interface (with built-in SCAM selection
register)
Supports 8
playback - Using
16 80-ns DRAMs
Supports 4
playback - Using
16 80-ns DRAMs or
8
70-ns DRAMs
Transfer rates: 10 MB/s (synchronous), 5 MB/s
(asynchronous) using
16 80-ns DRAMs
*1
Transfer rates: 8.467 MB/s (synchronous), 4.2336 MB/s
(asynchronous) using
8 70-ns DRAMs
*2
Supports the connection of up to 32 Mb of buffer RAM
(using DRAM)
The user can freely set the CD main channel, C2 flag,
and other areas in buffer RAM.
Batch transfer function (transfers the CD main channel
and C2 flag data in a single operation)
Multi-block transfer function (automatically transfers
multiple blocks in a single operation)
High-speed transfer mode supports a 10-MB/s
(synchronous) transfer rate using
8 80-ns DRAMs
Subcode ECC function
Note: 1. For speeds up to 8
speed, use a SCSI master
clock frequency of 20 MHz.
Note:
2. For speeds up to 4
speed, use a SCSI master
clock frequency of 16.9344 MHz.
Package Dimensions
unit: mm
3182-QIP128E
unit: mm
3214-SQFP144
Preliminary
SANYO: QIP128E
[LC895125Q]
SANYO: SQFP144
[LC895125W]
LC895125Q, 895125W
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN
CD-ROM Driver with On-Chip SCSI Interface and
Subcode Functions
CMOS LSI
Specifications
Absolute Maximum Ratings
at V
SS
= 0 V
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
DD
max
Ta = 25C
0.3 to +7.0
V
I/O voltages
V
I
, V
O
Ta = 25C
0.3 to V
DD
+ 0.3
V
Allowable power dissipation
Pd max
Ta
70C
450
mW
Operating temperature
Topr
30 to +70
C
Storage temperature
Tstg
55 to +125
C
Soldering heat resistance (pins only)
10 seconds
260
C
Allowable Operating Ranges
at Ta = 30 to +70C, V
SS
= 0 V
DC Characteristics
at V
SS
= 0 V, V
DD
= 4.5 to 5.5 V, Ta = 30 to +70C
SCSI Pin Input Characteristics
Sample Recommended Oscillator Circuit
R1 = 120 k
R2 = 47
C1 = 30 pF
Crystal oscillator frequencies: XTALCK0 = 16.9344 MH
Z
and XTALCK1 = 20 MHz
or:
R1 = 3.3 k
R2 = None
C1 = 5 pF
Crystal oscillator frequency: XTALCK0 = 33.8688 MHz
If third harmonic overtones appear when using a 33.8688 MHz frequency with the
recommended circuit example, consult with the manufacturer of the crystal
element, since detailed values of the circuit constants will be influenced by the
printed circuit board.
No. 5241-2/11
LC895125Q, 895125W
Parameter
Symbol
Applicable Pins
* (
See below
)
min
typ
max
Unit
Input high level voltage
V
IH
1
All input pins other than (1), (3), and XTALCK
2.2
V
Input low level voltage
V
IL
1
0.8
V
Input high level voltage
V
IH
2
RESET, IO0 to IO15, D0 to D7, RD, CS, WR, WFCK,
2.5
V
Input low level voltage
V
IL
2
SBSO, SCOR (1)
0.6
V
Input high level voltage
V
IH
3
Input pins (3), ACK, and ATN
2.0
V
Input low level voltage
V
IL
3
0.8
V
Output high level voltage
V
OH
1
I
OH
1 = 2 mA: All output pins except (2), (3),
2.4
V
and XTALCK, IO0 to IO15, and D0 to D7
Output low level voltage
V
OL
1
I
OL
1 = 2 mA: All output pins except (2), (3),
0.4
V
and XTALCK, IO0 to IO15, and D0 to D7
Output low level voltage
V
OL
2
I
OL
2 = 2 mA: INT1, INT0, and ZSWAIT
0.4
V
(open-drain outputs with pull-up resistors) (2)
Output low level voltage
V
OL
3
I
OL
3 = 48 mA: DB0, to DB7, DBP, BSY, I/O, MSG,
0.4
V
SEL, RST, REQ, C/D (3)
Input leakage current
I
L
V
I
= V
SS
, V
DD
: All input pins
25
+25
A
Pull-up resistance
R
UP
IO0 to IO15, D0 to D7, INT0, INT1, ZSWAIT
40
80
160
k
Parameter
Symbol
Conditions
min
typ
max
Unit
Supply voltage
V
DD
4.5
5.0
5.5
V
Input voltage range
V
IN
0
V
DD
V
Parameter
Symbol
Conditions
min
typ
max
Unit
Input threshold voltage
V
t + t1
V
DD
= 4.5 to 5.5 V
1.60
2.00
V
V
t t1
0.80
1.11
V
Hysteresis width
V
tt1
V
DD
= 5.0 V
0.41
0.49
V
Block Diagram
Note: 1. WFCK, SBSO, SCOR
2. BCK, SDATA, LRCK, C2PO
3. DB0 to DB7, DBP, BSY, MSG, SEL, RST, REQ, I/O, C/D
4. ACK, ATN
5. ZRD, ZWR, SUA0 to SUA6, ZCS, CSCTRL
6. D0 to D7
7. IO0 to IO15
8. RA0 to RA16, ZRAS0, ZRAS1, ZCAS0, ZCAS1, ZOE, ZUWE, ZLWE
Note: IO8 to IO15 and RA9 to RA16 are the same pins.
No. 5241-3/11
LC895125Q, 895125W
Pin Functions (LC895125Q)
Type: I: Input pin, O: Output pin, B: Bidirectional pin, P: Power supply pin, NC: No connection pin
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. 5241-4/11
LC895125Q, 895125W
Pin No.
Symbol
Type
Function
1
V
DD
P
2
V
SS0
P
3
RA5
O
4
RA6
O
Address outputs for the buffer RAM
5
RA7
O
6
RA8
O
7
RA9 (IO15)
B
Address outputs for the buffer RAM or data I/O pins
8
RA10 (IO14)
B
The pin circuits include pull-up resistors.
9
V
SS0
P
10
RA11 (IO13)
B
11
RA12 (IO12)
B
12
RA13 (IO11)
B
Address outputs for the buffer RAM or data I/O pins
13
RA14 (IO10)
B
The pin circuits include pull-up resistors.
14
RA15 (IO9)
B
15
RA16 (IO8)
B
16
IO7
B
Buffer RAM data I/O. The pin circuit includes a pull-up resistor.
17
V
SS0
P
18
IO6
B
19
IO5
B
20
IO4
B
Buffer RAM data I/O.
21
IO3
B
The pin circuits include pull-up resistors.
22
IO2
B
23
IO1
B
24
IO0
B
25
V
SS0
P
26
TEST0
I
27
TEST1
I
28
TEST2
I
Test pins. These pins must be connected to V
SS0
.
29
TEST3
I
30
TEST4
I
31
ZRESET
I
LSI reset. The LSI is reset on a 0 input.
32
V
DD
P
33
V
SS0
P
34
CSCTRL
I
Selects active-high or active-low for the microcontroller CS logic.
35
XTALCK0
I
Crystal oscillator input
36
XTAL0
O
Crystal oscillator output
37
V
SS0
P
38
D0
B
39
D1
B
40
D2
B
41
D3
B
Microcontroller data signals
42
D4
B
43
D5
B
44
D6
B
45
D7
B
46
V
SS0
P
47
ZSWAIT
O
WAIT signal output to the microcontroller
48
ZINT0
O
Interrupt request output to the microcontroller (ECC side. Set with a register.)
49
V
DD
P
50
ZINT1
O
Interrupt request output to the microcontroller (SCSI side. Set with a register.)
Continued on next page.
Continued from preceding page.
Type: I: Input pin, O: Output pin, B: Bidirectional pin, P: Power supply pin, NC: No connection pin
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. 5241-5/11
LC895125Q, 895125W
Pin No.
Symbol
Type
Function
51
ZRD
I
Microcontroller data read signal input
52
ZWR
I
Microcontroller data write signal input
53
ZCS
I
Register chip select signal from the microcontroller
54
SUA0
I
55
SUA1
I
56
SUA2
I
57
SUA3
I
Microcontroller register selection signals
58
SUA4
I
59
SUA5
I
60
SUA6
I
61
V
SS0
P
62
X1EN
I
Selection pin that must be set to 1 when XTALCK1 is used.
63
XTALCK1
I
SCSI block oscillator circuit input. Selected by X1EN.
64
XTAL1
O
SCSI block oscillator circuit output.
65
V
DD
P
66
V
SS1
P
67
DB0
B
SCSI connection
68
DB1
B
69
V
SS1
P
70
DB2
B
SCSI connection
71
DB3
B
72
V
DD
P
73
V
SS1
P
74
DB4
B
SCSI connection
75
DB5
B
76
V
SS1
P
77
DB6
B
SCSI connection
78
DB7
B
79
V
SS1
P
80
DBP
B
SCSI connection
81
V
SS1
P
82
ATN
B
SCSI connection
83
V
DD
P
84
BSY
B
SCSI connection
85
ACK
B
86
V
SS1
P
87
RST
B
SCSI connection
88
MSG
B
89
V
DD
P
90
SEL
B
SCSI connection
91
C/D
B
92
V
SS1
P
93
REQ
B
SCSI connection
94
I/O
B
95
V
SS1
P
96
V
DD
P
97
V
SS0
P
98
NC
99
V
SS0
P
100
V
SS0
P
Continued on next page.
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