Arent Fox LLP
Semiconductor device including voltage level conversion output circuit
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.
Fujitsu Microelectronics Limited
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Hiromichi Toshiyuki Kazuya
Mizuno Nishii Taniguchi