Abstract:
The present invention relates to a serial two''s complementer whose logical design, by the preferential use of NAND devices and other measures, provides a minimum geometry configuration, in an implementation using metal oxide semiconductor field effect transistors with large scale integration. The two''s complement function is achieved by a binary storage element implemented by an inverter, two NAND gates with two half bit dynamic delays and by an exclusive NOR gate implemented by a NAND gate and a composite NAND-OR configuration. The binary storage element and exclusive NOR gate are interconnected to invert the serial bit stream after the occurrence of the first one to produce the two''s complement.