公开(公告)号：US5276362A

公开(公告)日：1994-01-04

申请号：US879646

申请日：1992-05-06

申请人： Carlos D. Obregon ,  Daniel T. Bizuneh ,  Vikrant Chaudhry ,  Michael A. Wells

发明人： Carlos D. Obregon ,  Daniel T. Bizuneh ,  Vikrant Chaudhry ,  Michael A. Wells

IPC分类号： H03K19/00 ,  H03K19/017 ,  H03K19/0175 ,  H03K19/08 ,  H03K19/01

CPC分类号： H03K19/01721 ,  H03K19/0013 ,  H03K19/017518

摘要： The present invention includes a circuit having an input section that is operated from an operating voltage which is lower than a supply voltage of the circuit. The operating voltage is established so that the operating voltage minus the voltage of a high level TTL signal is less than an upper level threshold voltage of the input section. The circuit couples the output of the input section to the supply voltage thereby increasing the voltage on the output of the input section to a voltage greater than the operating voltage. In addition, the circuit enables a current source during a portion of a low-to-high transition on an output of the circuit. The current source provides high current drive during the portion of the transition. Since the current source is only enabled during the portion of the transition, static power dissipation is minimized.

摘要翻译： 本发明包括具有从低于电路的电源电压的工作电压操作的输入部分的电路。 建立工作电压，使得工作电压减去高电平TTL信号的电压小于输入部分的上限阈值电压。 电路将输入部分的输出耦合到电源电压，从而将输入部分的输出端的电压增加到大于工作电压的电压。 此外，该电路在电路的输出上的低到高转换的一部分期间使能电流源。 电流源在过渡部分提供高电流驱动。 由于电流源仅在转换部分期间启用，所以静态功耗最小化。