DESCRIPTION

The LX5107 is a nine-line active terminator for the SCSI parallel bus. This SCSI standard recommends active termination at both ends of the SCSI bus.

During disconnect mode, the LX5107 requires a meager 30μA of supply current while offering only 3.0pF of output capacitance. To enter this low-power mode, the disconnect pin should be driven low thereby disconnecting the terminating resistors and placing the internal low dropout regulator into low-power mode. In disconnect mode, each termination line presents a high impedance to the SCSI bus with the overall effect being to preserve high signal integrity and yield subsequent reliable, error free communications.

KEY FEATURES

■ 3.0pF OUTPUT CAPACITANCE DURING DISCONNECT

■ 30μA SUPPLY CURRENT IN DISCONNECT MODE

■ 600μA SUPPLY CURRENT DURING NORMAL OPERATION

■ 50mA SINK CURRENT FOR ACTIVE NEGATION

■ LOGIC COMMAND DISCONNECTS ALL TERMINATION LINES

■ CURRENT LIMIT AND THERMAL PROTECTION

■ COMPATIBLE WITH SCSI 1, 2 AND 3 STANDARDS

■ MEETS SCSI HOT PLUGGING CAPABILITY

■ CONSULT FACTORY FOR APPLICATION TEST REPORT: 5107TR