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Semiconductor device

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专利汇可以提供Semiconductor device专利检索,专利查询,专利分析的服务。并且PURPOSE: To obtain a semiconductor device capable of easily forming an edge detector circuit without using an inner cell by disposing an edge detector circuit in a prebuffer and disposing a signal lead-out wire from the edge detector circuit to an inner cell area.
CONSTITUTION: In a semiconductor device in which an input signal added to a pad 11 is input to a prebuffer 14 through a pad lead-out wire 12 and a static electricity protection element 13, an edge detector circuit 15 is disposed in the prebuffer 14, and a signal lead-out wire 17 from the edge detector circuit 15 to an inner cell area is disposed. For example, the edge detector circuit 15 comprises an EX-OR circuit and a delay circuit 19. The above semiconductor device has the prebuffer 14 capable of forming the edge detector circuit 15 only by a wiring process, and has a lead-out wire 17 for picking out pulses from the edge detector circuit 15 in addition to a lead-out wire 18 for ordinary level signals as an input signal lead-out wire from the prebuffer 14 to the inner cell area.
COPYRIGHT: (C)1990,JPO&Japio,下面是Semiconductor device专利的具体信息内容。

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