公开(公告)号：US06480051B2

公开(公告)日：2002-11-12

申请号：US09891931

申请日：2001-06-26

申请人： Oleg Drapkin ,  Grigori Temkine

发明人： Oleg Drapkin ,  Grigori Temkine

IPC分类号： H03L510

CPC分类号： G06F1/263

摘要： A voltage supply discriminator circuit senses multiple logic voltage supply levels and produces a plurality of control signals to select either or both of an output buffer circuit and/or an input buffer circuit that is coupled to a pad or pin. The discriminator circuit utilizes an input/output ring voltage supply and a reference voltage, such as a core voltage supply, to determine the appropriate circuitry to be used for the I/O pad. The appropriate circuitry is then automatically activated.

摘要翻译： 电压鉴别器电路感测多个逻辑电压电平并产生多个控制信号，以选择耦合到焊盘或引脚的输出缓冲器电路和/或输入缓冲器电路中的一个或两者。 鉴频器电路利用输入/输出环电压电源和诸如核心电压源的参考电压来确定要用于I / O焊盘的适当电路。 然后自动激活适当的电路。