Bicmos Integrated Circuits

025 BICMOS INTEGRATED CIRCUITS BiCMOS devices combine bipolar and cmos technologies, pro- viding the best features of both: the fast performance and the 48/64 mA output drive of bipolar devices and the low power con- sumption of cmos devices. In active mode, Bicmos devices operate at about half the supply current of their pure bipolar equivalents. When disabled, they may reduce power consumption by up to 90%. Since at present most BiCMOS ICS function as bus interfaces (that are normally dis- abled), the result may be a system lc-power saving of up to 25%. Moreover, BiCMOS devices use the typical 0.3-3.5 V rrL voltage swings at their output rather than the larger Givo-to-vcc swings of cmos devices. This smaller voltage swing reduces the overall effects of transient voltage noise produced during the simultane- ous switching of multiple outputs. A number of integrated circuits are available in BiCMOS technol- ogy, including transceivers with registers, pipeline registers, 8/9/10-bit ...