FEATURES

• Auto Selection Multi-Mode Single

Ended or Low Voltage Differential

Termination

• 2.7V to 5.25V Operation

• Differential Failsafe Bias

• Built-in SPI-3 Mode Change Filter/

Delay

• Meets SCSI-1, SCSI-2, Ultra2 (SPI-2

LVD), Ultra3/Ultra160 (SPI-3) and

Ultra320 (SPI-4) Standards

• Supports Active Negation

• 3pF Channel Capacitance

DESCRIPTION

The UCC5672 Multi-Mode Low Voltage Differential and Single Ended Terminator

is both a single ended terminator and a low voltage differential terminator

for the transition to the next generation SCSI Parallel Interface

(SPI-3). The low voltage differential is a requirement for the higher speeds

at a reasonable cost and is the only way to have adequate skew budgets.

The automatic mode select/change feature switches the terminator between

Single Ended or LVD SCSI Termination, depending on the bus

mode. If the bus is in High Voltage Differential Mode, the terminator lines

transition into a High Impedance state.

The UCC5672 is SPI-4, SPI-3, SPI-2, and SCSI-2 compliant. This device

is offered in a 28 pin TSSOP package to minimize the footprint. The

UCC5672 is also available in a 36 pin MWP package.