发明授权
US5130574A Programmable logic device providing product term sharing and steering to
the outputs of the programmable logic device
失效
可编程逻辑器件提供产品术语共享和转向可编程逻辑器件的输出
- 专利标题： Programmable logic device providing product term sharing and steering to the outputs of the programmable logic device
- 专利标题（中）： 可编程逻辑器件提供产品术语共享和转向可编程逻辑器件的输出
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申请号： US696461申请日： 1991-05-06
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公开(公告)号： US5130574A公开(公告)日： 1992-07-14
- 发明人: Ju Shen , Albert L. Chan , Kapil Shankar , Cyrus Tsui
- 申请人： Ju Shen , Albert L. Chan , Kapil Shankar , Cyrus Tsui
- 申请人地址： OR Hillsboro
- 专利权人： Lattice Semiconductor Corporation
- 当前专利权人： Lattice Semiconductor Corporation
- 当前专利权人地址： OR Hillsboro
- 主分类号： H03K19/177
- IPC分类号： H03K19/177
摘要：
A programmable logic device is disclosed which includes a programmable AND array, a plurality of logic circuits connected to groups of product term outputs from the AND array for performing a logical OR operation of the product term inputs and the programmable logic device includes programmable OR circuitry for selectively connecting one or more of the ORed groups of product terms to one or more outputs of the programmable logic device. The programmable OR circuit permits product term steering and sharing.
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