DS2108
FEATURES
Fully pliant with SCSI, SCSI-2 and SCSI3 standards Conforms to EIA RS-485 standard Provides differential termination for 9 pairs of signal lines Operates with SCSI signal voltages of -7 to +12 Volts Laser-trimmed 330 and 150-ohm termination resistors have ±5% tolerance over full temperature range Switchable power-down mode Low power down capacitance of 6 p F 24-pin plastic SOIC (DS2108S)
PIN ASSIGNMENT
TPWR R1N R2N R3N R4N R5N R6N R7N R8N R9N TPWR NC 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 PD GND R1P R2P R3P R4P R5P R6P R7P R8P R9P GND
DS2108S 24-Pin SOIC (300-mil)
DESCRIPTION
The DS2108 SCSI Terminator has been specifically designed for High Voltage Differential (HVD) SCSI systems requiring switchable termination. The DS2108 integrates eighteen 330-ohm and nine 150-ohm precise switched termination resistors into a monolithic IC. The surface mount SOIC package saves board space over conventional resistor SIPs. The termination resistors can be isolated...
