FEATURES
D Complies with SCSI, SCSI–2 and SPI–2 Standards D 2.7-V to 5.25-V Operation D 1.8-pF Channel Capacitance during Disconnect D 0.5-µA Supply Current in Disconnect Mode D 110-Ω/2.5-kΩ Programmable Termination D Completely Meets SCSI Hot Plugging D –400-mA Sourcing Current for Termination D +400-mA Sinking Current for Active Negation Drivers D Trimmed Termination Current to 4% D Trimmed Impedance to 7% D Current Limit and Thermal Shutdown Protection BLOCK DIAGRAM DESCRIPTION
The key features contributing to such low operating voltage are the 0.1-V drop out regulator and the 2.7-V reference. During disconnect the supply current is typically only 0.5 µA, which makes the device attractive for battery powered systems. The UCC5606 is designed with an ultra-low channel capacitance of 1.8 pF, which eliminates effects on signal integrity from disconnected terminators at interim points on the bus. UDG–94067–1 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
Texas Instruments
