公开(公告)号：US4903223A

公开(公告)日：1990-02-20

申请号：US190571

申请日：1988-05-05

申请人： Kevin A. Norman ,  Robert J. Frankovich

发明人： Kevin A. Norman ,  Robert J. Frankovich

IPC分类号： G06F7/00 ,  H01L21/82 ,  H01L21/822 ,  H01L27/04 ,  H03K19/177

CPC分类号： H03K19/17736 ,  H03K19/17704 ,  H03K19/17728 ,  H03K19/1774

摘要： A programmable logic device having a relatively small number of programmable product terms ("P-terms") feeding each fixed combinatorial logic device, and additional "expander" programmable P-terms which do not directly feed a fixed device. Relatively simple logic functions can be performed by suitably programming the P-terms feeding the fixed devices. More complex logic functions can be performed by suitably programming the required number of expander P-terms, and then combining the outputs of those P-terms by means of another P-term. In order to conserve word lines in the programmable array, multiplexers allow selection of whether expander outputs or external inputs will be applied to certain word lines.

公开(公告)号：US4713792A

公开(公告)日：1987-12-15

申请号：US742089

申请日：1985-06-06

申请人： Robert F. Hartmann ,  Yiu-Fai Chan ,  Robert J. Frankovich ,  Jung-Hsing Ou ,  Hock C. So ,  Sau-Ching Wong

发明人： Robert F. Hartmann ,  Yiu-Fai Chan ,  Robert J. Frankovich ,  Jung-Hsing Ou ,  Hock C. So ,  Sau-Ching Wong

IPC分类号： G11C17/00 ,  G11C16/04 ,  H01L21/82 ,  H01L21/8247 ,  H01L29/788 ,  H01L29/792 ,  H03K17/693 ,  H03K19/173 ,  H03K19/177 ,  G06F1/00

CPC分类号： H03K19/1736 ,  H03K17/693 ,  H03K19/1737

摘要： A programmable macrocell 28 for use in an integrated circuit device including an electronic circuit 32 responsive to control signals and operative to perform particular operations selected by the control signals on input data signals and to develop commensurate output signals, and one or more architecture control circuits 30 each including a programmable EPROM device 34 which when programmed generates a logic signal of a first state and when unprogrammed generates a logic signal of a second state, a read and write control circuit 36 responsive to input program data signals and a corresponding address signal and operative to program the EPROM device 34 by applying a programming potential thereto, and a sensing circuit 38 for sensing the programmed or unprogrammed status of the EPROM device 34 and for developing a commensurate control signal for input to the electronic circuit 32.

摘要翻译： 一种用于集成电路设备的可编程宏单元28，其包括响应于控制信号的电子电路32，并且可操作以执行由输入数据信号上的控制信号选择的特定操作并且开发相应的输出信号，以及一个或多个架构控制电路30 每个都包括一个可编程EPROM器件34，当被编程时产生第一状态的逻辑信号，并且当未编程产生第二状态的逻辑信号时，读和写控制电路36响应输入的程序数据信号和对应的地址信号， 通过向其施加编程电位来对EPROM器件34进行编程;以及感测电路38，用于感测EPROM器件34的编程状态或未编程状态，并用于形成相应的控制信号以输入到电子电路32。