Ordering number : ENN6251
N3099TH (OT) No. 6251-1/14
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.
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
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
Package Dimensions
unit: mm
3214-SQFP144
LC897127K
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
SCSI CD-ROM Decoder
with On-Chip DVD Interface
CMOS IC
0.20
1.25
1.25
22.0
20.0
0.5
22.0
20.0
0.5
1.25
1.25
0.145
0.1
1.4
1.6max
0.5
0.5
1
36
37
72
73
108
109
144
SANYO: SQFP144
[LC897127K]
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.
No. 6251-2/14
LC897127K
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
DD
max
Ta = 25C
0.3 to +7.0
V
Input/output voltage
V
I
V
O
Ta = 25C
0.3 to V
DD
+0.3
V
Allowable power dissipation
Pd max
Ta
70C
550
mW
Operating temperature
Topr
30 to +70
C
Storage temperature
Tstg
55 to +125
C
Soldering temperature (pin part only)
10s
260
C
Specifications
Absolute Maximum Ratings
at V
SS
= 0 V
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Supply voltage
V
DD
4.5
5.0
5.25
V
Input voltage range
V
IN
0
V
DD
V
Allowable Operating Ranges
at Ta = 30 to +70C, V
SS
= 0 V
Parameter
Symbol
Conditions
Applicable pins
Ratings
Unit
min
typ
max
Input high-level voltage
V
IH1
TTL levels
(1)
2.2
V
Input low-level voltage
V
IL1
0.8
V
Input high-level voltage
V
IH2
TTL levels
(9)
2.2
--
--
V
Input low-level voltage
V
IL2
with pull-up resistor
--
--
0.8
V
Input high-level voltage
V
IH3
TTL levels
(2)
2.2
--
--
V
Input low-level voltage
V
IL3
Schmitt
--
--
0.8
V
Input high-level voltage
V
IH3
TTL levels
(11)
2.2
--
--
V
Input low-level voltage
V
IL3
Schmitt with pull-down resistor
--
--
0.8
V
Input high-level voltage
V
IH4
TTL levels
(12)
2.2
--
--
V
Input low-level voltage
V
IL4
Schmitt with pull-up resistor
--
--
0.8
V
Input high-level voltage
V
IH4
CMOS levels
(3)
0.8 V
DD
--
--
V
Input low-level voltage
V
IL4
Schmitt
--
--
0.2 V
DD
V
Input high-level voltage
VI
H5
(4), (8), (10)
2.0
--
V
Input low-level voltage
V
IL5
0.8
V
Output high-level voltage
V
OH1
I
OH1
= 12 mA
(6)
V
DD
2.1
--
--
V
Output low-level voltage
V
OL1
I
OL1
= 12 mA
--
--
0.4
V
Output high-level voltage
V
OH2
I
OH2
= 8 mA
(7), (11)
2.4
--
V
Output low-level voltage
V
OL2
I
OL2
= 8 mA
0.4
V
Output high-level voltage
V
OH2
I
OH2
= 2 mA
(9), (5)
2.4
--
V
Output low-level voltage
V
OL2
I
OL2
= 2 mA
0.4
V
Output low-level voltage
V
OL4
I
OL4
= 48 mA
(10)
0.4
V
Input leakage current
I
IL
V
I
= V
SS
, V
DD
All input pins
25
+25
A
Pull-up resistance
R
UP
(5), (9)
60
120
240
k
Pull-down resistance
R
DOWN
(11)
60
120
240
k
DC Characteristics
at Ta = 30 to +70C, V
SS
= 0 V, V
DD
= 4.5 to 5.5 V
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.
No. 6251-3/14
LC897127K
SCSI Pin Input Characteristics
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Input threshold voltage
V
t+t1
V
DD
= 4.50 to 5.50 V
1.60
2.00
V
V
tt1
0.80
1.10
V
Hysteresis width
V
tt1
V
DD
= 5.0 V
0.41
0.5
V
Active Low Output Characteristics
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Output high-level voltage
V
OH
2.5
V
Output low-level voltage
V
OL
0.4
V
Note: Only applies to the active-low output pins DB0 to DB7, REQ, and DBPB
Rise Time Test Circuit
SCSI
Driver
TP
47
5%
15pF
5%
2.5V
+
A12548
Recommended Oscillator and PLL Circuits
LC897127
R1
R2
C2
C1
XTALCK0
PN27
XTAL0
PN28
PN69
PN70
PN71
A12549
LC897127
PLL
R5
R4
C3
R3
A12550
R1 = 120 k
, R2 = 47
, C1 = 30 pF
Crystal element oscillator frequency XTALCK0 = 16.9344 MHz
R3 = 7.5 k
, R4 = 200
, R5 = 10k
, C3 = 0.1 F
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. 6251-4/14
LC897127K
Block Diagram
De-scramble &
Buffering
Address generator
Microcontroller
RAM access
Address generator
Address generator
ECC & EDC
Block
SCSI I/F
Address generator
Data output input I/F
Address generator
CAV-Audio control
Bus
Arbiter
&
RAM
controller
&
IF
controller
DRAM
or
ATAPI
I/F IC
or
DMA
I/F IC
Each Block
Bus control
signal
Each Block
Register
CD-DSP I/F
& SYNC
Detector
CD-DSP
DVD DSP
HOST
Micro
controller
decoder
Clock
generator
&
PLL
*10
*2
*7
DAC
*9
*8
*5
*6
*3
*4
Sub-code I/F
de-interleve
Address generator
DVD DSP I/F
Address generator
*1
EXCK
INT0, 1
SWAIT
XTALCK
XTAL
MCK
Each Block
Data bus[0:7]
Address bus[0:21]
RAM
Data bus[0:15]
LC897127K
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. 6251-5/14
LC897127K
LC897127K Pin Functions
When the DVD Interface is Used
Type
I
INPUT
B
BIDIRECTION
NC
NOT CONNECT
O
OUTPUT
P
POWER
Pin No.
Pin
Type
Function
1
V
SS0
P
2
IO2
B
Buffer RAM data I/O.
3
IO1
B
These pins have built-in pull-up resistors.
4
IO0
B
5
MCK2SEL
I
PLL frequency selection. This pin must be connected to V
DD
.
6
C2PO
I
7
SDATA
I
CD DSP interface
8
BCK
I
9
LRCK
I
10
EXCK
O
Subcode I/O
11
WFCK
I
12
SBSO
I
Subcode I/O
13
SCOR
I
14
DSDATA
O
15
DLRCK
O
D/A converter outputs
16
DBCK
O
17
MCK
O
XTALCLK0 1/1, 1/2, and stop output
18
V
DD
P
19
V
SS0
P
20
RESET
I
IC reset. The IC is reset on a low-level input.
21
CSCTRL
I
Microcontroller CS low/high
22
TEST3
I
23
TEST0
I
Test pins. These pins must be connected to V
SS0
in normal operation.
24
TEST1
I
25
TEST2
I
26
V
SS0
P
27
XTALCK0
I
Crystal oscillator circuit input
28
XTAL0
O
Crystal oscillator circuit output
29
TEST4
I
Test pin. This pin must be connected to V
SS0
in normal operation.
30
DRESP
B
DVD ECC data latching. A pull-down resistor is built in.
31
HDBDIR
O
DVD data bus direction output. A pull-down resistor is built in.
32
DREQ
B
DVD ECC data request. A pull-down resistor is built in.
33
V
SS0
P
34
HDB7
I
DVD data input
35
HDB6
I
36
V
SS0
P
37
V
DD
P
38
HDB5
I
39
HDB4
I
40
HDB3
I
DVD data input
41
HDB2
I
42
HDB1
I
43
HDB0
I
44
V
SS0
P
45
RD
I
Microcontroller data read signal input
46
WR
I
Microcontroller data write signal input
47
CS
I
Register chip select input from the microcontroller
48
SUA0
I
49
SUA1
I
50
SUA2
I
Microcontroller register selection signals
51
SUA3
I
52
SUA4
I
53
SUA5
I
Continued on next page.
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