UCC5618 is a 18-line SCSI terminator produced by Unitrode. It supports SCSI, SCSI-2, SCSI-3, SPI and FAST-20 standards. It has a power supply current of only 50µA when disconnected, and a channel capacitance of 2pF.
The UCC5618 is an 18‑line active SCSI terminator that complies with SCSI‑1, SCSI‑2 and SCSI‑3 standards. It offers low channel capacitance (2 pF), hot‑plug capability, and configurable supply current for power‑saving modes.
The document provides absolute maximum ratings, detailed electrical characteristics, pin descriptions, and packaging options for various SOIC, TSSOP and PLCC variants. It also includes safety notices and TI’s warranty statements.
| Supply Current (Open) | 1 mA typical |
|---|---|
| Supply Current (0.2 V) | 420 mA typical |
| Disconnect Mode Supply Current | 50 µA typical |
| Termination Impedance | 110 Ω typical |
| Thermal Shutdown Temperature | 170 °C |
The disconnect mode draws about 50 µA typical.
The device shuts down thermally at 170 °C.