The structure of dynamic BiCMOS circuit and its switch-level design

Much attention has been paid to dynamic circuit in current low power design. Since the BiCMOS circuit has advantages of both the CMOS circuit and the TTL circuit, it has gained more and more application. In this paper, a new structure and the design method at switch level of the binary dynamic BiCMOS circuit has been proposed based on an n-type BiCMOS dynamic circuit. The circuits designed following this method have shown advantages not only in heavy integration density, low power, high speed and large load drive capability, but also in simple structure and low design complexity. PSpice simulation has proved that these circuits have correct logic function, high running speed and low power consumption.