Texas Instruments UCC5611 SCSI Active Terminator Datasheet

About this manual

The UCC5611 provides 18 lines of active termination for SCSI parallel buses, supporting both 110 Ω and 2.5 kΩ termination modes. It features a 0.1 V drop‑out regulator, 1.8 pF ultra‑low channel capacitance, and a disconnect mode that draws only about 1 A, making it suitable for battery‑powered designs.

The device includes thermal shutdown, current‑limit protection, and is fully hot‑pluggable. It is offered in SOIC and PLCC packages with various RoHS‑compliant options, and is documented with detailed electrical characteristics and recommended operating conditions.

What's inside

• Description
• Block Diagram
• Electrical Characteristics
• Recommended Operating Conditions
• Parameter Test Conditions
• Packaging Information
• Application Information
• Important Notice

Specifications

Frequently asked questions

What is the supply current when the UCC5611 is in disconnect mode?

The device draws about 1 A in disconnect mode.

What is the channel capacitance of the UCC5611?

The channel capacitance is 1.8 pF.

Is the UCC5611 hot‑pluggable?

Yes, the device is completely hot‑pluggable.