| 摘要 |
1. Integrated PLA, consisting of an OR array (30) with an associated current source (40'), and a search group array (32), the circuits of the OR array, of the search group array, as well as of the current source consisting of bipolar transistors, characterized in that each block (30, 32) is isolated in its own epitaxial region in the semiconductor substrate which is used as a common collector for the bipolar transistors, that the emitters of the bipolar transistors are selectively connected in each of the two arrays (30, 32) to an emitter line (22', 33) common for the array, that the emitter line (22') of the OR array (30) is connected to the current source (40'), that the emitter line (33) of the search group array (32) is connected to the common collector region of the OR array (30), and that an output (35) is connected to the common collector region of the search group array (32) so that the logic function of the OR array (30) and that of the search group array (32) are combined at the output (35) of the search group array (32). |
