The UC5602 is a 18-line active termination device for SCSI (Small Computer Systems Interface) parallel bus. It meets SCSI and SCSI-2 standards. It has 10pF channel capacitance, logic command disconnects all termination lines, low supply current, trimmed regulator for accurate termination current, current limit and thermal shutdown protection, 110 Ohm termination and meets SCSI hot plugging.
The UC5602 is a pin‑compatible active terminator for SCSI‑2/3 parallel buses. It offers 18 lines of termination, a disconnect feature that powers down the regulator to reduce standby current, and internal trimming for 110 Ω typical impedance and up to 22.4 mA output current. The device is supplied in SOIC‑28, PLCC‑28 and DIL‑24 packages.
Key electrical characteristics include a 4.0 V‑5.25 V supply range, typical supply current of 20 mA (open) to 400 mA (full load), 13 pF output capacitance, and a thermal shutdown threshold of 170 °C. The part is covered by TI’s packaging addendum and is listed as obsolete by Texas Instruments.
| Number of Termination Lines | 18 |
|---|---|
| Supply Current (all lines open) | 20 mA typ |
| Supply Current (full load) | 400 mA typ |
| Thermal Shutdown Temperature | 170 °C |
The UC5602 provides active termination for 18 lines.
Yes, it shuts down at 170 °C.