UCC5640 Datasheet PDF | Texas Instruments

Texas Instruments UCC5640

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.

Part No.	UCC5640
Datasheet	UCC5640 Download
Manufacturer	Texas Instruments
Description	Low Voltage Differential (LVD) SCSI 9 Line Terminator
Buy	Stock & Price

FEATURES

D First LVD only Active Terminator D Meets SCSI SPI-2 Ultra2 (Fast-40), SPI-3 Ultra3 / Ultra160 (Fast-80) and SPI-4 (Fast-160) Ultra320 Standards D 2.7-V to 5.25-V Operation D Differential Failsafe Bias BLOCK DIAGRAM

DESCRIPTION

Designed with a 1.5-pF 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. TRMPWR 28 2.7V to 5.25V SOURCE 5− 15mA SINK 200 µA MAXIMUM (NOISE LOAD) REF 1.3V 1.3V + 0.1V 2.4V > 1.9V OPEN CIRCUIT ON POWER OFF OR OPEN CIRCUIT IN A DISABLED TERMINATOR MODE 12 DIFSENS HIGH POWER DIFFERENTIAL DIFFB 11...