The DS90C189-Q1 has one bank of 24 data inputs, one set of video control signal (HS, VS and DE) inputs and several device configuration LVCMOS pins. All LVCMOS input pins are designed for 1.8 V LVCMOS logic. All LVCMOS inputs, including clock, data and configuration pins, have an internal pull down resistor to set a default state. If any inputs are unused, they can be left as no connect (NC) or connected to ground.