Microsemi LX5243
The LX5241/42/43 is a multimode SCSI terminator that is compatible with to the SCSI SPI02 (Ultra2 SCSI), SCSI SPI-3 (Ultra3 SCSI or Ultra160 SCSI), and pending SCSI SPI-4 (Ultra320) specifications developed by the T10 standards committee for low voltage differential (LVD) termination, while providing backwards compatibility to the SCSI, SCSI-2, and SPI singleended specifications. The LX5241/42/43 utilizes Linfinity’s UltraMAX technology which delivers the ultimate in SCSI bus performance while saving component cost and board area.| Part No. | LX5243 |
|---|---|
| Datasheet | LX5243 Download |
| Manufacturer |  Microsemi |
| Description | MULTIMODE SCSI TERMINATOR |
| Buy | Stock & Price |
T H E ™ LX5241/5242/5243 I N F I N I T E P O W E R O F I N N O V A T I O N Multimode compatibility permits the use of legacy devices on the bus without hardware alterations. Automatic mode selection is achieved through voltage detection on the Diffsense line. Elimination of the external capacitors also mitigates the need for a lengthy capacitor selection process. The individual high bandwidth drivers also maximize channel separation and reduce channel to channel noise and cross talk. The high bandwidth architecture insures ULTRA2 performance while providing a clear migration path to ULTRA3 and beyond. When the LX5241/42/43 is enabled, the differential sense (DIFFSENSE) pin supplies a voltage between 1.2V and 1.4V. In application this pin is tied to the DIFFSENSE input of the corresponding LVD transceivers. This action enables the LVD transceiver function. DIFFSENSE is capable of supplying a maximum of 15mA. Tying the DIFFSENSE pin high places the LX5241/42/43 in a HI Z state indicating the presence of an HVD device.
