Ordering number : ENN6236
CMOS IC
LC895127, 895127K
40× CD-ROM Decoder with SCSI Interface
Functions
•
•
•
•
CD-ROM ECC function
SCSI I/F function
Subcode I/F function
CAV audio function
• CAV audio function
• Supports 20 MBytes/s transfers
• Package: SQFP-144
Package Dimensions
unit: mm
3214-SQFP144
[LC895127, 895127K]
1.25
109
Features
• SCSI interface (includes on-chip SCAM selection register)
• Supports 20× speed and a 10 MBytes/s transfer rate
when using 16-bit 70-ns EDO DRAM
• Supports 40× speed and a 10 MB/s transfer rate
when using 16-bit 50-ns EDO DRAM
• Up to 4 M bits of buffer RAM can be used.
• The user can freely set up the CD main channel and the
C2 flag areas in buffer RAM.
• Batch transfer function (Allows the CD main channel, the
C2 flags, and other data to be sent in a single operation.)
• Multi-block transfer function (Allows multiple blocks to
be sent automatically in a single operation.)
• Subcode buffering and CD-TEXT support
0.5
108
22.0
20.0
1.25
73
72
0.145
22.0
20.0
0.5
1.25
1.6max
144
37
1
0.20
36
0.1
1.4
1.25
0.5
0.5
Specifications
Absolute Maximum Ratings
at V
SS
= 0 V
Parameter
Maximum supply voltage
Input/output voltage
Allowable power dissipation
Operating temperature
Storage temperature
Soldering temperature (pin part only)
Symbol
V
DD
max
V
I
, V
O
Pd max
Topr
Tstg
10 s
Ta = 25°C
Ta = 25°C
Ta
≤
70°C
Conditions
SANYO: SQFP144
Ratings
–0.3 to +7.0
–0.3 to V
DD
+ 0.3
550
–30 to +70
–55 to +125
260
Unit
V
V
mW
°C
°C
°C
Allowable Operating Ranges
at Ta = –30°C to +70°C, V
SS
= 0 V
Parameter
Supply voltage
Input voltage range
Symbol
V
DD
V
IN
Conditions
Ratings
min
4.5
0
typ
5.0
max
5.5
V
DD
Unit
V
V
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
D1599TH (OT)/30899TH (OT) No. 6236-1/8
LC895127, 895127K
DC Characteristics
at Ta = –30 to +70°C, V
SS
= 0 V, V
DD
= 4.5 to 5.5 V
Parameter
Input high-level voltage
Input low-level voltage
Input high-level voltage
Input low-level voltage
Input high-level voltage
Input low-level voltage
Input high-level voltage
Input low-level voltage
Input high-level voltage
Input low-level voltage
Input high-level voltage
Input low-level voltage
Output high-level voltage
Output low-level voltage
Output high-level voltage
Output low-level voltage
Output high-level voltage
Output low-level voltage
Output low-level voltage
Input leakage current
Pull-up resistance
Applicable pin sets are as follows.
INPUT
(1)
(2)
(3)
(4)
TEST0 to TEST4, CSCTRL, SUA0 to SUA6, C2P0, SDATA, BCK, LRCK, SCOR, WFCK, SBS0, MCK2SEL
RESET
CS, RD, WR
SCSISEL, XTALSEL
Symbol
V
IH1
V
IL1
V
IH2
V
IL2
V
IH3
V
IL3
V
IH4
V
IL4
V
IH5
V
IL5
V
IH2
V
IL2
V
OH1
V
OL1
V
OH2
V
OL2
V
OH2
V
OL2
V
OL4
I
IL
R
UP
TTL levels
with pull-up resistor
I
OH1
= –12 mA
I
OL1
= 12 mA
I
OH2
= –8 mA
I
OL2
= 8 mA
I
OH2
= –2 mA
I
OL2
= 2 mA
I
OL4
= 48 mA
V
I
= V
SS
, V
DD
Conditions
Applicable pins
Ratings
min
2.2
0.8
2.2
—
2.2
—
0.8 V
DD
—
2.0
—
—
—
—
—
—
—
0.8
—
0.8
—
0.2 V
DD
—
0.8
2.2
—
V
DD
– 2.1
—
2.4
0.4
2.4
0.4
0.4
–25
60
120
+25
240
—
—
—
—
0.8
—
0.4
typ
max
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
µA
kΩ
TTL levels
TTL levels
with pull-up resistor
TTL levels
Schmitt
CMOS levels
Schmitt
(1)
(9)
(2)
(3)
(4), (8), (10)
(11)
(6)
(7)
(9), (5), (11)
(10)
All input pins
(5), (9), (11)
OUTPUT
(5)
(6)
(7)
INT0, INT1, SWAIT
MCK
EXCK, DSDATA, DLRCK, DBCK, RAS0, CAS0, CAS1, OE, UWE, LWE, RA0 to RA8
INOUT
(8)
(9)
ACK, ATN
D0 to D7, IO0 to IO15, IOP0 to IOP7
(10) DB0 to DB7, DBP, BSY, I/O, MSG, SEL, RST, REQ, C/D
(11) IOP0 to IOP7
Note: Pins XTAL0, XTALCK0, XTAL1, XTALCK1, and X1EN are not included in DC characteristics.
No. 6236-2/8
LC895127, 895127K
SCSI Pin Input Characteristics
Parameter
Symbol
V
t+t1
V
t–t1
∆V
tt1
Conditions
Ratings
min
typ
1.60
0.80
0.41
1.10
0.5
max
2.00
Unit
V
V
V
Input threshold voltage
Hysteresis width
V
DD
= 4.50 to 5.50 V
V
DD
= 5.0 V
Active-Low Output Characteristics
Parameter
Output high-level voltage
Output low-level voltage
Symbol
V
OH
V
OL
Conditions
Ratings
min
2.5
0.4
typ
max
Unit
V
V
Note: Only applies to the active-low output pins DB0 to DB7, REQ, DBPB
SCSI
driver
TP
47
Ω ±
5 %
Rise time test circuit
15 pF
±
5 %
+
2.5 V
–
A12526
Recommended Oscillator and PLL Circuits
LC895127
LC895127
PLL
XTALCK0
PN27
R1
XTAL0
PN28
R2
R3
C4
PN69
PN70
R4
C5
C3
R5
PN71
C1
C2
A12527
A12528
R1 = 120 kΩ, R2 = 47
Ω,
C1 = 30 pF
Crystal oscillator frequency XTALCK0 = 16.9344 MHz
R3 = 7.5 kΩ, R4 = 200
Ω,
R5 = 10 kΩ, C3 = 0.1 µF
C4 = 0.1 µF, C5 = 0.002 µF to 0.01 µF
Note: The values listed above for R3, R4, R5, and C3 also apply when the XTALKC0 frequency is 33.8688 MHz.
Applications must be designed so that the analog V
DD
and V
SS
power supply system is completely independent of the
logic system power supply and is not affected by the logic system power supply fluctuation in any way.
Note: Since the exact values of these components will vary depending on the characteristics of the printed circuit board
used and other factors, consult the manufacturer of the crystal element when designing the oscillator circuit.
No. 6236-3/8
LC895127, 895127K
Pin Functions
I
O
Pin No.
1
2
3
4
5
6
7
8
9
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
51
52
53
Pin name
V
SS0
IO2
IO1
IO0
MCK2SEL
C2PO
SDATA
BCK
LRCK
EXCK
WFCK
SBSO
SCOR
DSDATA
DLRCK
DBCK
MCK
V
DD
V
SS0
RESET
CSCTRL
TEST3
TEST0
TEST1
TEST2
V
SS0
XTALCK0
XTAL0
TEST4
V
SS0
V
SS0
V
SS0
V
SS0
IOP7
IOP6
V
SS0
V
DD
IOP5
IOP4
IOP3
IOP2
IOP1
IOP0
V
SS0
RD
WR
CS
SUA0
SUA1
SUA2
SUA3
SUA4
SUA5
Type
P
B
B
B
I
I
I
I
I
O
I
I
I
O
O
O
O
P
P
I
I
I
I
I
I
P
I
O
I
P
P
P
P
I
I
P
P
I
I
I
I
I
I
P
I
I
I
I
I
I
I
I
I
Microcontroller register selection signals
Microcontroller data read signal input
Microcontroller data write signal input
Register chip select input from the microcontroller
General-purpose I/O ports. These pins include built-in pull-up resistors.
General-purpose I/O ports. These pins include built-in pull-up resistors.
Crystal oscillator circuit input
Crystal oscillator circuit output
Test pin. This pin must be connected to V
SS0
in normal operation.
Test pins. These pins must be connected to V
SS0
in normal operation.
IC reset. The IC is reset on a low-level input
MC (Microcontroller) CSL
0
, Hi
XTALCLK0 1/1, 1/2, and stop output
D/A converter outputs
Subcode I/O
Subcode I/O
CD DSP interface
Buffer RAM data I/O
These pins have built-in pull-up resistors.
PLL frequency selection. Currently, this pin must be connected to V
DD
.
INPUT
OUTPUT
B
P
Pin functions
Type
BIDIRECTION
POWER
NC
NOT CONNECT
Continued on next page.
No. 6236-4/8
LC895127, 895127K
Continued from preceding page.
Pin No.
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
DBP
V
DD
DB7
DB6
V
SS1
DB5
DB4
V
DD
DB3
DB2
V
SS1
DB1
DB0
SCSISEL
XTALSEL
V
DD
V
SS1
MSG
RST
V
SS1
ACK
BSY
V
SS1
ATN
V
DD
V
SS1
I/O
REQ
V
SS1
C/D
SEL
Pin
V
DD
V
SS0
SUA6
D0
D1
D2
D3
D4
D5
V
SS0
D6
D7
INT0
INT1
SWAIT
X1EN
XTALCK1
XTAL1
V
SS0
V
DD
I/O
P
P
I
B
B
B
B
B
B
P
B
B
O
O
O
I
I
O
P
P
NC
B
B
P
B
B
NC
P
P
B
B
P
B
B
B
B
P
P
NC
B
P
B
B
P
B
B
P
B
B
P
B
B
I
I
SCSI interface
SCSI pin layout selection. (This pin must be connected to V
SS0
.)
PLL XTAL oscillator selection
SCSI interface
SCSI interface
SCSI interface
SCSI interface
SCSI interface
SCSI interface
SCSI interface
SCSI interface
SCSI interface
Microcontroller data signals
Interrupt request signal output to the microcontroller (ECC side. Set by setting a register value.)
Interrupt request signal output to the microcontroller (SCSI side. Set by setting a register value.)
Wait signal output to the microcontroller
Used by the PLL. This pin must be connected to V
DD
through a resistor.
Used by the PLL.
Used by the PLL.
Analog V
SS
Analog V
DD
Microcontroller data signals
Microcontroller register selection signals
Function
Continued on next page.
No. 6236-5/8
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