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LC895124 Datasheet

  • LC895124

  • CD-ROM Driver with On-Chip SCSI Interface and Subcode Functi...

  • 8頁

  • SANYO

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Ordering number : EN*5240
CMOS LSI
LC895124
CD-ROM Driver with On-Chip SCSI Interface and
Subcode Functions
Preliminary
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.
鈥?High-speed transfer mode supports a 10-MB/s
(synchronous) transfer rate using
脳8
80-ns DRAMs
鈥?Subcode ECC function
Note: 1. For speeds up to 8脳 speed, use a SCSI master
clock frequency of 20 MHz.
Note:
2. For speeds up to 4脳 speed, use a SCSI master
clock frequency of 16.9344 MHz.
Functions
CD-ROM ECC function, subcode read function, SCSI
interface
Package Dimensions
unit: mm
3214-SQFP144
[LC895124]
Features
鈥?On-chip SCSI interface (with built-in SCAM selection
register)
鈥?Supports 8脳 playback - Using
脳16
80-ns DRAMs
鈥?Supports 4脳 playback - Using
脳16
80-ns DRAMs or
脳8
70-ns DRAMs
鈥?Transfer rates: 10 MB/s (synchronous), 5 MB/s
(asynchronous) using
脳16
80-ns DRAMs
*1
鈥?Transfer rates: 8.467 MB/s (synchronous), 4.2336 MB/s
(asynchronous) using
脳8
70-ns DRAMs
*2
鈥?PSRAM can be used, providing 5 MB/s transfers in
synchronous mode and 5 MB/s transfers in
asynchronous mode .
鈥?Supports the connection of up to 32 Mb of buffer RAM
(using DRAM) (Up to 2 Mb when PSRAM is used)
鈥?The user can freely set the CD main channel, C2 flag,
and other areas in buffer RAM.
鈥?Batch transfer function (transfers the CD main channel
and C2 flag data in a single operation)
鈥?Multi-block transfer function (automatically transfers
multiple blocks in a single operation)
SANYO: SQFP144
Specifications
Absolute Maximum Ratings
at V
SS
= 0 V
Parameter
Maximum supply voltage
I/O voltages
Allowable power dissipation
Operating temperature
Storage temperature
Soldering heat resistances (pins only)
Symbol
V
DD
max
V
I
, V
O
Pd max
Topr
Tstg
10 seconds
Ta = 25擄C
Ta = 25擄C
Ta
鈮?/div>
70擄C
Conditions
Ratings
鈥?.3 to +7.0
鈥?.3 to V
DD
+ 0.3
450
鈥?0 to +70
鈥?5 to +125
260
Unit
V
V
mW
擄C
擄C
擄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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