通用阵列逻辑（GAL）的5种工作模式

Study of work model in GAL

通用阵列逻辑（ＧＡＬ）为数字系统的设计带来了根本性的变革．为了用ＧＡＬ替代一般的数字电路，提高设计质量，研究了ＧＡＬ的核心电路输出逻辑宏单元（ＯＭＬＣ）的５种工作模式，并指出了各种模式在使用中应注意的问题。

The General Array Logic(GAL) has revolutionized the design of digit system. In order to substitute general digit circuit by GAL and improve design, this paper presents five kinds of the working models in Output Logic Macrocells (OLMC). Some problems on designing these models are also discussed.