Table 2: Speed and energy consumption of various asynchronous cell designs.

Design Technology Voltage Speed (MHz) Energy (pJ/cycle) Wong TSMC 180 1.8 190–235 2.1–3.1 Teifel TSMC 250 2.5 400 18 Mahram TSMC 180 1.8 280 2.2 PQ-cell TSMC 250 2.5 190 15.6