參數(shù)資料
型號： SYM53C140
廠商： LSI CORP
元件分類： 其它接口
英文描述： Ultra2 SCSI Bus Expander(Ultra2 SCSI總線擴展器)
中文描述： SPECIALTY INTERFACE CIRCUIT, PQFP160
封裝： 32 MM, PLASTIC, QFP-160
文件頁數(shù)： 13/68頁
文件大小： 928K
代理商： SYM53C140
General Description
1-5
Integrated LVDlink transceivers for direct attachment to either LVD,
SE, or HVD bus segments
Operates as a SCSI Bus Expander
–
LVD to LVD (Ultra2 SCSI)
–
HVD to HVD (Ultra SCSI)
–
SE to SE (Ultra SCSI)
Operates as a SCSI Bus Converter
–
LVD to HVD (Ultra SCSI)
–
LVD to SE (Ultra SCSI)
–
HVD to SE (Ultra SCSI)
Targets and initiators may be located on either the A or B Side of the
device
Accepts any asynchronous or synchronous transfer speed up to
Ultra2 SCSI (for LVD to LVD mode only)
Supports dynamic addition/removal of SCSI bus segments via the
electrical isolation mode
Does not consume a SCSI ID
Propagates the RESET/ signal from one side to the other regardless
of the SCSI bus state
Notifies initiator(s) of changes in transmission mode (SE/LVD/HVD)
on A or B side segments via SCSI bus RESET
SCSI Busy LED driver for activity indicator
Up to four SYM53C140s may be cascaded
Completely independent of software
1.1.3 Specifications
40 MHz Input Clock
160-pin Plastic Quad Flat Pack (PQFP)
Compliant with the SCSI Parallel Interconnect 2(SPI-2)
Compliant with SCSI Enhanced Parallel Interface (EPI)
Specifications
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