- 专利标题： Semiconductor device including voltage level conversion output circuit
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申请号： US11652590申请日： 2007-01-12
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公开(公告)号： US20070115747A1公开(公告)日： 2007-05-24
- 发明人: Kazuya Taniguchi , Toshiyuki Nishii , Hiromichi Mizuno
- 申请人： Kazuya Taniguchi , Toshiyuki Nishii , Hiromichi Mizuno
- 专利权人： FUJITSU LIMITED
- 当前专利权人： FUJITSU LIMITED
- 优先权： JP2004-238326 20040818
- 主分类号： G11C5/14
- IPC分类号： G11C5/14
摘要：
A semiconductor device for easily changing an operating voltage of an I/O circuit. The I/O circuit includes a first I/O cell, which operates with a first high-potential power supply, and a second I/O cell, which operates with a second high-potential power supply. The I/O circuit includes a control circuit for selectively activating the first and second I/O cells according to a voltage selection signal. In the I/O circuit, a signal having a voltage according to an operating voltage of the selected I/O cell is generated.
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