DESCRIPTION

· The UCC5614 provides 9 lines of active termination for SCSI parallel bus.

· Ideal for high-performance 3.3-V SCSI systems.

· Features a 0.1-V drop-out regulator and a 2.7-V reference for low operating voltage.

· Ultra-low channel capacitance of 1.8 pF minimizes signal integrity issues.

· Suitable for battery-powered systems with a typical supply current of 0.5 µA in disconnect mode.

FEATURES

· Complies with SCSI, SCSI-2, and SPI-2 Single Ended Standards.

· Operates from 2.7-V to 5.25-V.

· 1.8-pF channel capacitance during disconnect.

· 0.5-µA supply current in disconnect mode.

· 110-Ω/2.5-kΩ programmable termination.

· Supports SCSI hot plugging.

· -400-mA sourcing current for termination.

· +400-mA sinking current for active negation drivers.

· Trimmed termination current to 4% and impedance to 7%.

· Includes current limit and thermal shutdown protection.

APPLICATIONS

· High-performance 3.3-V SCSI systems.

· Battery-powered systems requiring low power consumption.

· Systems requiring active termination for SCSI parallel bus.

· Applications needing minimal signal integrity impact from disconnected terminators.