Coding Circuits for Reducing Hamming Weight

Using a newly introduced alternative to a conventional SRAM cell a binary zero can be written with a much lower power consumption than a binary one. Such a solution reduces power consumption, especially if there are few ones in the data, that is, if the data has a low Hamming weight. If the data is not inherently of low weight, this can be achieved by encoding the data. In the paper such coding is discussed and in small cases energy efficient encoding and decoding realizations are presented.