The UCC5610 is a 3.3V SCSI system active terminator which provides 18 line of active termination. It operates on 2.75-V to 7-V, sourcing current of 0.5-µA when connected and -650-mA when disconnected. It supports 110-Ω or 2.5-kΩ termination impedance.
The UCC5610 provides 18 lines of active termination for SCSI parallel buses, supporting both 110 Ω and 2.5 kΩ termination modes. It operates from 2.75 V to 5.25 V and features an ultralow 1.8 pF channel capacitance, making it suitable for high‑performance and battery‑powered systems.
The device includes thermal shutdown, current limit, and a low‑power disconnect mode (≈0.5 mA). It is offered in SOIC (DWP) and PLCC (QP) packages and is fully hot‑pluggable, meeting SPI‑2 and SPI‑3 standards.
| Supply current in disconnect mode | 0.5 mA |
|---|---|
| Termination impedance tolerance | ±7 % |
| Sourcing current | 650 mA |
| Sinking current | 400 mA |
| Channel capacitance | 1.8 pF |
| Operating voltage range | 2.75 V to 5.25 V |
The disconnect mode draws about 0.5 mA of supply current.
The termination impedance is trimmed to within ±7 % tolerance.
The device has an ultralow channel capacitance of 1.8 pF.
The UCC5610 is offered in a 28‑pin SOIC (DWP) and a 28‑pin PLCC (QP) package.