The UCC5614 is a terminal driver for SCSI interface released by TI company. It can provide 9 lines of termination for the SCSI bus and support hot-plugging. The maximum operating voltage of UCC5614 is 5.25V, and the minimum operating voltage is 2.7V. When disconnected, the supply current of UCC5614 is only 0.5μA. UCC5614 also has ultra-low channel capacitance, which can effectively suppress signal interference.
The UCC5614 is a 9‑line active SCSI terminator designed for high‑performance 3.3 V SCSI systems. It provides programmable termination (110 Ω or 2.5 kΩ) and complies with SCSI, SCSI‑2, and SPI‑2 single‑ended standards, offering low supply current and ultra‑low channel capacitance for battery‑powered applications.
The datasheet lists key specifications such as a 2.7 V‑5.25 V operating range, 0.5 µA disconnect current, 1.8 pF channel capacitance, and thermal shutdown at 170 °C. Packaging options include SOIC‑16 (DP), DIL‑16 (N), and TSSOP‑24 (PW) with tape‑and‑reel availability, and detailed mechanical dimensions are provided for board layout.
| Operating voltage range | 2.7 V to 5.25 V |
|---|---|
| Supply current in disconnect mode | 0.5 µA typical |
| Channel capacitance (disconnect) | 1.8 pF |
| Programmable termination options | 110 Ω or 2.5 kΩ |
| Termination impedance tolerance | ±7 % |
The device can be programmed for either a 110‑Ω termination or a 2.5‑kΩ termination.
In disconnect mode the supply current is typically 0.5 µA.
The UCC5614 is offered in SOIC‑16 (DP), DIL‑16 (N), and TSSOP‑24 (PW) packages.
The device operates from 2.7 V up to 5.25 V.