tbufi
tgate
These gates are similar in function. The first is an inverting tristate buffer, while the second is a non-inverting transmission gate. When laid out, the first will have amplification, the second will not. The inputs to these gates are identical. The first input is the D input while the next two are clock and inverted clock. The clock is active high. If the clock is active, the tbufi acts as an inverter while the tgate copies its input to its output. If the clock is not active, the output of the gate does not change. (This allows wired-or connections to work properly.)