The purpose of this standard is to provide an industry-wide set of specifications, for Application Specific
Integrated Circuit (ASIC) signal inputs and outputs, both necessary and sufficientto define a circuit's electrical
interfacing with the external environment. Interfacing specifications are necessary at different levels of
informational content, and are intended to support the logic interface levels for ECL, TIL, CMOS, and BiCC
(see Section 5.).