IMP5121

IMP5121 DATA COMMUNICATIONS 27-Line Plug and Play SCSI Terminator The 27-channel IMP5121 SCSI terminator is part of IMP's family of highperformance SCSI terminators that deliver true UltraSCSI performance. The BiCMOS design offers superior performance over first generation linear regulator/resistor based terminators. IMP's new architecture employs high-speed adaptive elements for each channel, thereby providing the fastest response possible - typically 35MHz, which is 100 times faster than the older linear regulator terminator approach. The bandwidth of terminators based on the older regulator/resistor terminator architecture is limited to 500kHz since a large output stabilization capacitor is required. The IMP architecture eliminates the external output compensation capacitor and the need for transient output capacitors while maintaining pin compatibility with first generation designs. Reduced component count is inherent with the IMP5121. Key Features x SCSI Plug and Play — Host bus adapter with 3 SCSI connectors x Ultra-Fast response for Fast-20 SCSI x Split disconnect for mixing 16-bit (wide) or 8-bit (narrow) buses x 35MHz channel bandwidth x Sleep-mode current less than 150µA x NO external compensation capacitors x Compatible with active negation drivers x Hot swap compatible x Superior replacement for the LX5121 and UCC5621 The IMP5121 architecture tolerates marginal system designs. A key improvement offered by the IMP5121 lies in its ability to insure reliable, err...