Input/output Buffer Information Specification
IBIS (Input Output Buffer Information Specification) is a method of providing information about the input/output buffers of an integrated circuit to the outside world. It is an EIA (Electronic Industries Alliance) standard. The idea of IBIS is provide the behavioral aspects of a circuit without providing the actual circuit information to the user. The model that is generated is in text format and consists of a number of tables with voltage and current values. IBIS models are generally used in liu of SPICE models.