发明授权
- 专利标题： Programmable array logic cell
- 专利标题（中）： 可编程阵列逻辑单元
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申请号： US864185申请日： 1986-05-16
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公开(公告)号： US4789951A公开(公告)日： 1988-12-06
- 发明人: John M. Birkner , Danesh M. Tavana , Andrew K. Chan , Sing Y. Wong
- 申请人： John M. Birkner , Danesh M. Tavana , Andrew K. Chan , Sing Y. Wong
- 申请人地址： CA Sunnyvale
- 专利权人： Advanced Micro Devices, Inc.
- 当前专利权人： Advanced Micro Devices, Inc.
- 当前专利权人地址： CA Sunnyvale
- 主分类号： H03K19/177
- IPC分类号： H03K19/177 ; H03K3/037 ; G06F7/38 ; H03K19/173
摘要：
A programmable array logic cell 60 including a sum-of-products array having a single OR gate 70 for providing a sum signal, and including an XOR gate 80 for combining the sum signal with a product signal provided by an AND gate 78 from selected array input and/or feedback signals. The product signal can be the previous state output signal Q for a JK flip flop configuration, or a forced high or low signal for other configurations for programmable output signal polarity.
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