IBUF - IBUF - UG861

Spartan UltraScale+ FPGAs SelectIO Resources User Guide (UG861)

Document ID
UG861
Release Date
2026-04-28
Revision
1.1 English

Signals used as inputs must use an input buffer (IBUF). The generic IBUF primitive is shown in the following figure.

Figure 1. Input Buffer Primitive (IBUF)