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Sanyo - CD-ROM Driver with On-Chip SCSI Interface and Subcode Functions

Numéro de référence LC895124
Description CD-ROM Driver with On-Chip SCSI Interface and Subcode Functions
Fabricant Sanyo 
Logo Sanyo 





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LC895124 fiche technique
Ordering number : EN*5240
Preliminary
CMOS LSI
LC895124
CD-ROM Driver with On-Chip SCSI Interface and
Subcode Functions
Overview
The LC895124 is the next-generation version of the
LC89512 and is a CD-ROM decoder that includes a SCSI
interface that supports the high-speed transfers (10 MB/s)
of the FAST SCSI standard.
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
• PSRAM can be used, providing 5 MB/s transfers in
synchronous mode and 5 MB/s transfers in
asynchronous mode .
• Supports the connection of up to 32 Mb of buffer RAM
(using DRAM) (Up to 2 Mb when PSRAM is used)
• 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
3214-SQFP144
[LC895124]
SANYO: SQFP144
Specifications
Absolute Maximum Ratings at VSS = 0 V
Parameter
Maximum supply voltage
I/O voltages
Allowable power dissipation
Operating temperature
Storage temperature
Soldering heat resistances (pins only)
Symbol
VDD max
VI, VO
Pd max
Topr
Tstg
Ta = 25°C
Ta = 25°C
Ta 70°C
10 seconds
Conditions
Ratings
–0.3 to +7.0
–0.3 to VDD + 0.3
450
–30 to +70
–55 to +125
260
Unit
V
V
mW
°C
°C
°C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN
22896HA (OT) No. 5240-1/8

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