The PI3C34X484 is a 3.3 Volt, high-bandwidth 40-bit, 2-port bus switch designed with a low ON resistance allowing inputs to be connected directly to outputs. The bus switch creates no additional propagational delay or additional ground bounce noise. The switches are turned ON by the Bus Enable (BE) input signal. Eight bus enable signals are provided, one for each of the upper and lower five bits of the four 10-bit buses.