The document describes the features and characteristics of IMP5111/5112 SCSI terminators. They have ultra-fast response for fast-20 SCSI applications, 35MHz channel bandwidth, 3.3V operation, less than 3pF output capacitance, sleep-mode current less than 275µA, thermally self-limiting, no external compensation capacitors required, support 8-bit or 16-bit (wide) applications, compatible with active negation drivers (60mA / channel), compatible with passive and active terminations, approved for use with SCSI 1, 2, 3 and Ultra SCSI, hot swap compatible, pin-for-pin compatible with LX5211 and UC5606 (IMP5111), and pin-for-pin compatible with LX5212 and UC5603/5613/5614 (IMP5112).
The IMP5111/5112 are high‑performance, adaptive, non‑linear SCSI terminators offering a 35 MHz channel bandwidth and low output capacitance. Designed for SCSI‑1,‑2,‑3, UltraSCSI and beyond, they provide reliable error‑free communication even with marginal cable lengths or impedances.
Key features include a sleep‑mode current under 275 µA, hot‑swap compatibility, and pin‑for‑pin compatibility with legacy parts. The manual details electrical characteristics, absolute maximum ratings, thermal data, recommended operating conditions, and package dimensions for both SOIC and TSSOP formats.
| Channel Bandwidth | 35 MHz |
|---|---|
| Output Capacitance (DISCONNECT mode) | < 3 pF |
| Sleep‑mode Quiescent Current | < 275 µA |
| Term Power Supply Voltage | 4.75 V |
| Storage Temperature Range | -65 °C to 150 °C |
The terminator provides a 35 MHz channel bandwidth.
In sleep mode the quiescent current is typically less than 275 µA.
Yes, the device is hot‑swap compatible.
They are pin‑for‑pin compatible with LX5211 and UCS606 (IMP5111) and with LX5212 and UC5603/5613/5614 (IMP5112).