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