输出高，低电平电流
Current - Output High, Low | is a single buffer Ultra Low Power (ULP) Series . The internal circuit is composed of a minimum of inverter stages, including the output buffer, to enable ultra low static and dynamic power. for lower drive requirements, is uniquely designed for optimized power and speed, and is fabricated with an advanced CMOS technology to achieve best in class speed operation while maintaining extremely low CMOS power dissipation. |