Logic Design Using EFL Structures

The emitter function iogic (EFL) structure is a bipolar integratable circuit suitable for large-scale-integration (LSI). The structure is a development of current-mode logic and it permits the LSI realization of complex logic functions with similar silicon area and power dissipation to a single conventional ECL gate. In order to use the structure in logic design, some of its properties are developed and a logic design technique is given with examples.