|
|
PDF LC89512W Data sheet ( Hoja de datos )
| Número de pieza | LC89512W | |
| Descripción | CD-ROM Error Correction LSI with Built-In SCSI Interface | |
| Fabricantes | Sanyo | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LC89512W (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
|
No Preview Available !
Ordering number : EN*4852B
Preliminary
CMOS LSI
LC89512W
CD-ROM Error Correction LSI
with Built-In SCSI Interface
Overview
The LC89512W integrates a real-time error correction
circuit and a SCSI interface in a single chip.
Functions
• CD-ROM error correction function, subcode readout
function, SCSI interface
Features
• Support for double-speed drives at an operating
frequency of 16.9344 MHz
Either SRAM (120 ns), DRAM (80 ns) or pseudo
SRAM (85 ns) can be used.
• Support for quad-speed drives at an operating frequency
of 33.8688 MHz
SRAM (70 ns) must be used.
• Built-in SCSI interface with built-in 48 mA sink buffer
(Only the TARGET function is supported.)
• Built-in 12-byte output FIFO for sub-CPU to host
computer data transmission
• Built-in 12-byte input FIFO for host computer to sub-
CPU data transmission
• Subcode data can be written to buffer RAM and the sub-
CPU can read the subcode values by connecting the
LC89512 to the CD-DSP subcode pin.
• Sub-CPU access of buffer RAM through the LC89512
• Built-in function for buffer RAM internal data transfer
• Pseudo-SRAM (128-kword × 8-bit and smaller) can be
used.
• DRAM (two 256-kword × 4-bit chips or two 1-Mword ×
4-bit chips) can be used.
• Transfer speeds:
2.8 MB/second (asynchronous mode) (for CD-ROM
decode only operation)
4.2 MB/second (synchronous mode) (CD-ROM decode
operation is not supported in synchronous mode)
Both of these transfer modes use a 16.9344 MHz clock.
(The transfer speed depends on the frequency used.)
• Operating frequencies: 16.9344 MHz (up to double
speed), 33.8688 (quad speed)
Package Dimensions
unit: mm
3181A-SQFP100
[LC89512W]
SANYO: SQFP100
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
O3095HA (OT)/D1694TH (OT) No. 4852-1/5
1 page  
LC89512W
Specifications
Absolute Maximum Ratings at VSS = 0 V
Parameter
Maximum supply voltage
I/O voltages
Allowable power dissipation
Operating temperature
Storage temperature
Soldering thermal stress limit (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
350
–30 to +70
–55 to +125
260
Unit
V
V
mW
°C
°C
°C
Allowable Operating Ranges at Ta = –30 to +70°C, VSS = 0 V
Parameter
Symbol
Conditions
Supply voltage
Input voltage range
VDD
VIN
min typ max Unit
4.5 5.0 5.5 V
0
VDD
V
DC Characteristics at Ta = –30 to +70°C, VSS = 0 V, VDD = 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
Output high level voltage
Output low level voltage
Output low level voltage
Output low level voltage
Input leakage current
Pull-up resistance
Symbol
VIH1
VIL1
VIH2
VIL2
VIH3
VIL3
VOH1
VOL1
VOL2
VOL3
IL
RUP
Conditions
All input pins other than (1), (3), and XTALCK
RESET, IO0 to IO7, D0 to D7, RD, CS, WR, WFCK,
SBSO and SCOR(1)
ACK, ATN and the input pins (3)
IOH1 = –3 mA: IO0 to IO7, D0 to D7 and all output pins
other than (2), (3) and XTALCK
IOL1 = 3 mA: IO0 to IO7, D0 to D7 and all output pins
other than (2), (3) and XTALCK
IOL2 = 3 mA: INT1 and INT0
(pull-up resistor open drain) (2)
IOL3 = 48 mA: DB0 to DB7, DBP, BSY, I/O, MSG, SEL,
RST, REQ, C/D (2)
VI = VSS, VDD: All input pins
IO0 to IO7, D0 to D7, INT1 and INT0
min
2.2
2.5
2.0
2.4
–25
40
typ max Unit
V
0.8 V
V
0.6 V
V
0.8 V
V
0.4 V
0.4 V
0.4 V
+25 µA
80 160 kΩ
s No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace
equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of
which may directly or indirectly cause injury, death or property loss.
s Anyone purchasing any products described or contained herein for an above-mentioned use shall:
Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all
damages, cost and expenses associated with such use:
Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied
regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of February, 1997. Specifications and information herein are subject to
change without notice.
No. 4852-5/5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet LC89512W.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LC895124 | CD-ROM Driver with On-Chip SCSI Interface and Subcode Functions | Sanyo |
| LC895125Q | CD-ROM Driver with On-Chip SCSI Interface and Subcode Functions | Sanyo |
| LC895125W | CD-ROM Driver with On-Chip SCSI Interface and Subcode Functions | Sanyo |
| LC895126 | CD-ROM Decoder with Built-in SCSI Interface | Sanyo |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |