UCC5640 Series

9-line 2.7 to 5-V LVD terminator for Ultra2 through Ultra320 SCSI

Catalog

9-line 2.7 to 5-V LVD terminator for Ultra2 through Ultra320 SCSI

Part	Package / Case	Package / Case	Voltage - Supply [Max]	Voltage - Supply [Min]	Supplier Device Package	Mounting Type	Type	Operating Temperature [Max]	Operating Temperature [Min]	Number of Terminations
Texas Instruments UCC5640PW24TR	24-TSSOP	0.173 in 4.4 mm	5.25 V	2.7 V	24-TSSOP	Surface Mount	LVD SCSI	70 °C	0 °C	9

Catalog

9-line 2.7 to 5-V LVD terminator for Ultra2 through Ultra320 SCSI

Key Features

• First LVD only Active TerminatorMeets SCSI SPI-2 Ultra2 (Fast-40) SPI-3 Ultra3/Ultra160 (Fast-80) and SPI-4 (Fast-160) Ultra320 Standards2.7-V to 5.25-V OperationDifferential Failsafe BiasFirst LVD only Active TerminatorMeets SCSI SPI-2 Ultra2 (Fast-40) SPI-3 Ultra3/Ultra160 (Fast-80) and SPI-4 (Fast-160) Ultra320 Standards2.7-V to 5.25-V OperationDifferential Failsafe Bias

Description

The UCC5640 is an active terminator for low voltage differential (LVD) SCSI networks. This LVD only design allows the user to reach peak bus performance while reducing system cost. The device is designed as an active Y-terminator to improve the frequency response of the LVD bus. Designed with a 1.5pF channel capacitance, the UCC5640 allows for minimal bus loading for a maximum number of peripherals. With the UCC5640, the designer will be able to comply with the Fast-40 SPI-2, Fast-80 SPI-3 and Fast-160 SPI-4 specifications. The UCC5640 also provides a much needed system migration path for ever improving SCSI system standards. This device is available in the 24-pin TSSOP and 28-pin TSSOP for ease of layout use. The UCC5640 is not designed for use in single ended (SE) or high voltage differential (HVD) systems. The UCC5640 is an active terminator for low voltage differential (LVD) SCSI networks. This LVD only design allows the user to reach peak bus performance while reducing system cost. The device is designed as an active Y-terminator to improve the frequency response of the LVD bus. Designed with a 1.5pF channel capacitance, the UCC5640 allows for minimal bus loading for a maximum number of peripherals. With the UCC5640, the designer will be able to comply with the Fast-40 SPI-2, Fast-80 SPI-3 and Fast-160 SPI-4 specifications. The UCC5640 also provides a much needed system migration path for ever improving SCSI system standards. This device is available in the 24-pin TSSOP and 28-pin TSSOP for ease of layout use. The UCC5640 is not designed for use in single ended (SE) or high voltage differential (HVD) systems.