Ordering number : ENN6251
CMOS IC
LC897127K
SCSI CD-ROM Decoder
with On-Chip DVD Interface
Overview
The LC897127K is a CD-ROM decoder that includes an
on-chip DVD interface. Since the LC897127K also
includes an on-chip SCSI interface, it can be used to
implement a SCSI-compatible DVD-ROM drive simply
by combining it with a DVD decoder. It can also operate
as an independent SPC functional unit.
Package Dimensions
unit: mm
3214-SQFP144
[LC897127K]
1.25
109
0.5
108
22.0
20.0
1.25
73
72
0.145
Functions
• CD-ROM ECC function, subcode read function, SCSI
I/F, CAV audio function, DVD I/F
• ATAPI-to-SCSI conversion function, DMA I/F-to-SCSI
conversion function
22.0
20.0
0.5
1.25
1.25
Features
• Built-in SCSI I/F (Built-in register for SCAM selection)
• 20× speed and transfer speed of 10 Mbytes/s supported
using EDO-DRAM (×16, 70 ns)
• 32× speed and transfer speed of 10 Mbytes/s supported
using EDO-DRAM (16×, 50 ns)
• Up to 4 Mbits of buffer RAM connectable
• CD main channel and C2 flag areas in buffer RAM can
be freely set by user
• Built-in batch transfer function (function for sending CD
main channel, C2 flag, etc. at one time)
• Built-in multi block transfer function (function for
sending several blocks at one time)
• Built-in subcode buffering function and CD text support
• Built-in CAV audio function
• 20 Mbytes/s transfer supported
• Built-in DVD I/F
• Built-in ATAPI I/F-to-SCSI conversion function
• Built-in DMA I/F-to-SCSI conversion function
1.6max
144
1
37
0.20
36
0.1
1.4
0.5
0.5
SANYO: SQFP144
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
N3099TH (OT) No. 6251-1/14
LC897127K
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
10s
Ta = 25°C
Ta = 25°C
Ta
≤
70°C
Conditions
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 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
5.25
V
DD
Unit
V
V
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
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
Pull-down resistance
Applicable pin sets are as follows.
INPUT (1) TEST0 to TEST4, CSCTRL, SUA0 to SUA6, C2PO, SDATA, BCK, LRCK, SCOR, WFCK, SBS0, MCK2SEL
(2) RESET
(3) CS, RD, WR
(4) SCSISEL, XTALSEL
OUTPUT (5) INT0, INT1, SWAIT
(6) MCK
(7) EXCK, DSDATA, DLRCK, DBCK, RAS0, CAS0, CAS1, OE, UWE, LWE, RA0 to RA8, HDBDIR
INOUT (8) ACK, ATN
(9) D0 to D7, IO0 to IO15
(10) DB0 to DB7, DBP, BSY, I/O, MSG, SEL, RST, REQ, C/D
(11) DRESP, DREQ, HDB0 to HDB7
(12) IOP0 to IOP7 (No pull-up resistor used when these pins are used as pins HDB0 to HDB7)
Note: Pins XTAL0, XTALCK0, XTAL1, XTALCK1, and X1EN are not included in DC characteristics.
Symbol
V
IH1
V
IL1
V
IH2
V
IL2
V
IH3
V
IL3
V
IH3
V
IL3
V
IH4
V
IL4
V
IH4
V
IL4
VI
H5
V
IL5
V
OH1
V
OL1
V
OH2
V
OL2
V
OH2
V
OL2
V
OL4
I
IL
R
UP
R
DOWN
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
—
2.2
—
2.2
—
0.8 V
DD
—
2.0
—
—
—
—
—
—
—
—
—
—
—
0.8
—
0.8
—
0.8
—
0.8
—
0.2 V
DD
—
0.8
V
DD
– 2.1
—
2.4
—
—
—
0.4
—
0.4
2.4
—
0.4
0.4
–25
60
60
120
120
+25
240
240
typ
max
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
µA
kΩ
kΩ
TTL levels
TTL levels
with pull-up resistor
TTL levels
Schmitt
TTL levels
Schmitt with pull-down resistor
TTL levels
Schmitt with pull-up resistor
CMOS levels
Schmitt
(1)
(9)
(2)
(11)
(12)
(3)
(4), (8), (10)
(6)
(7), (11)
(9), (5)
(10)
All input pins
(5), (9)
(11)
No. 6251-2/14
LC897127K
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, and DBPB
Rise Time Test Circuit
SCSI
Driver
TP
47Ω±5%
15pF±5%
+
– 2.5V
A12548
Recommended Oscillator and PLL Circuits
LC897127
LC897127
PLL
XTALCK0
PN27
R1
XTAL0
PN28
R2
PN69
PN70
R4
R3
C3
R5
PN71
C1
C2
A12549
A12550
R1 = 120 kΩ, R2 = 47
Ω,
C1 = 30 pF
Crystal element oscillator frequency XTALCK0 = 16.9344 MHz
R3 = 7.5 kΩ, R4 = 200
Ω,
R5 = 10k
Ω,
C3 = 0.1 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 in any way.
Since the exact values of these components will vary depending on characteristics of the printed circuit board used and
other factors, consult the manufacturer of the crystal element when designing the oscillator circuit.
No. 6251-3/14
LC897127K
Block Diagram
LC897127K
Data bus[0:7]
DVD DSP
*10
RAM
Data bus[0:15] Address bus[0:21]
DVD DSP I/F
Address generator
*1
CD-DSP
EXCK
Sub-code I/F
de-interleve
Address generator
*2
CD-DSP I/F
& SYNC
Detector
De-scramble &
Buffering
Address generator
ECC & EDC
Address generator
HOST
Each Block
Bus control
signal
Bus
Arbiter
&
RAM
controller
&
IF
controller
DRAM
or
ATAPI
I/F IC
or
DMA
I/F IC
*3
*4
Each Block
Register
SCSI I/F
Block
*7
*8
INT0, 1
Micro
controller
*5
*6
SWAIT
XTALCK
XTAL
Data output input I/F
decoder
Address generator
Microcontroller
RAM access
Clock
generator
&
PLL
Address generator
CAV-Audio control
Address generator
*9
MCK
Each Block
DAC
A12551
*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.
RD, WR, SUA0 to SUA6, CS, CSCTRL
*6.
D0 to D7
*7.
IO0 to IO15 (Data bus for both ATAPI and DMA interfaces)
*8.
RA0 to RA10, RAS1, RAS0, OE, UWE, LWE
ATAPI interface: SBSO (DMARQ), DBCK (DMACK), DLRCK (DIOR), DSDATA (DIOW)
DMA interface: EXCK (DMARQ), C2PO (DMACK), SDATA (DIOR), BCK (DIOW)
*9.
DBCK, DLRCK, DSDATA
*10.
HDB7 to HDB0, DRESP, DREQ
See the circuit examples for details on ATAPI and DMA interface IC
connection.
No. 6251-4/14
LC897127K
LC897127K Pin Functions
When the DVD Interface is Used
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
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
DRESP
HDBDIR
DREQ
V
SS0
HDB7
HDB6
V
SS0
V
DD
HDB5
HDB4
HDB3
HDB2
HDB1
HDB0
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
B
O
B
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
DVD data input
DVD data input
Crystal oscillator circuit input
Crystal oscillator circuit output
Test pin. This pin must be connected to V
SS0
in normal operation.
DVD ECC data latching. A pull-down resistor is built in.
DVD data bus direction output. A pull-down resistor is built in.
DVD ECC data request. A pull-down resistor is built in.
Test pins. These pins must be connected to V
SS0
in normal operation.
IC reset. The IC is reset on a low-level input.
Microcontroller CS low/high
XTALCLK0 1/1, 1/2, and stop output
D/A converter outputs
Subcode I/O
CD DSP interface
Buffer RAM data I/O.
These pins have built-in pull-up resistors.
PLL frequency selection. This pin must be connected to V
DD
.
I
O
INPUT
OUTPUT
B
P
Function
Type
BIDIRECTION
POWER
NC
NOT CONNECT
Subcode I/O
Continued on next page.
No. 6251-5/14
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