发明授权
US06198665B1 One chip semiconductor integrated circuit device having two modes of data write operation and bits setting operation
失效
具有两种模式的数据写入操作和位设置操作的单芯片半导体集成电路器件
- 专利标题： One chip semiconductor integrated circuit device having two modes of data write operation and bits setting operation
- 专利标题（中）： 具有两种模式的数据写入操作和位设置操作的单芯片半导体集成电路器件
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申请号： US09428925申请日： 1999-10-28
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公开(公告)号： US06198665B1公开(公告)日： 2001-03-06
- 发明人: Koichi Kimura , Toshihiko Ogura , Hiroaki Aotsu , Mitsuru Ikegami , Tadashi Kuwabara , Hiromichi Enomoto , Tadashi Kyoda
- 申请人： Koichi Kimura , Toshihiko Ogura , Hiroaki Aotsu , Mitsuru Ikegami , Tadashi Kuwabara , Hiromichi Enomoto , Tadashi Kyoda
- 主分类号： G11C1300
- IPC分类号： G11C1300
摘要：
A memory device formed on an IC chip includes dynamic random access memories for effecting data read and write operations, first and second data terminals for receiving data from an external side of the IC chip, and a controller having a first data input connected to the first data terminal to receive first data, a second input connected to receive second data read, a third data input connected to the second data terminal to receive a function mode signal, and operation unit for executing operations between the first data provided from the first data input and the second data provided from the second input. The operation unit includes a function setting unit responsive to the function mode signal for setting a function indicated by the function mode signal prior to receipt of the first data. The second data is read out of a selected part of the storage locations. The operation corresponding to the function set by the function setting unit is executed for the first and second data. The result of the execution is written into the selected part of the storage locations via the input of the dynamic random access memories during one memory cycle.