协处理器端口电路的设计

Degin of the Coprocessor Port Circuit

端口电路负责内部电路与外部电路的连接,既保护晶片免受高压静电放电的破坏,又提供较大的驱动电流以驱动电路板上的负载,因此端口电路的设计尤为重要。端口电路包括电源/地、输入、输出和输入输出四种类型。针对芯片端口电路的设计进行了详细介绍,同时对可能出现的问题给出了合理的解决方法,以达到电路性能的优化。

The port of a chip is a unit that connect the inter and the outer circuits, ESD design technologies protect the chip and provide drive -current to the full chip. There are VDD/VSS,INPUT, OUTPUT,IO four types of port in a chip. This paper introduces the port - circuit of a chip and provides reasonable means for the possible matter.