A shared-well dual-supply-voltage 64-bit ALU


A shared n-well layout technique is developed for the design of dual-supply-voltage logic blocks. It is demonstrated on a design of a 64-bit arithmetic logic unit (ALU) module in domino logic. The second supply voltage is used to lower the power of noncritical paths in the sparse, radix-4 64-bit carry-lookahead adder and in the loopback bus. A 3 mm/sup 2… (More)


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