专利名称:CMOS cell for logic operations with fast
carry
发明人:Luigi Licciardi,Alessandro Torielli申请号:US07/1865申请日:19880427公开号:US04905179A公开日:19900227
摘要:The elementary adder, as far as carry propagation is concerned, has two circuitbranches: the first is an inverter (II) followed by a transfer gate (T1, T2) activated whentwo operands have opposite logic levels, in which case it transfers complemented inputcarry Cin to the output CoutN; the second consists of a 4-transistor series cirucit, two P-MOS (T3, T4) and two N-MOS (T5, T6) geenrating carry output CoutN complementedwhen the two operands have equal logic levels.
申请人:CSELT - CENTRO STUDI E LABORATORI TELECOMUNICAZIONI S.P.A.
代理人:Herbert Dubno
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