상변화 메모리에서 쓰기 전력을 줄이기 위한 쓰기 전력 계산 데이터 반전 장치 및 방법
양병도, 유병곤, 이승윤, 윤성민, 박영삼, 이남열
- 7920413 (2011.04.05)
- Provided are an apparatus and method for writing data to a phase-change random access memory (PRAM) by using writing power calculation and data inversion functions, and more particularly, an apparatus and method for writing data which can minimize power consumption by calculating the power consumed while input original data or inverted data is written to a PRAM and storing the data consuming less power. A PRAM consumes a significant amount of power in order to store data in a memory cell since a large electric current is required to flow for a long period of time. According to the present invention, since the PRAM consumes different amounts of power when writing data with a value of 0 and data with a value of 1, the power consumed when input original data is stored and the power consumed when the input original data is inverted and stored are compared to each other, the data with a smaller power consumption is stored when the data is written to the PRAM as a word unit, and thus the power consumption of the PRAM can be reduced.
- KSP 제안 키워드
- Data inversion, Long period, Phase Change Material(PCM), Phase change, Phase-change random access memory(PRAM), Power Consumption, Random Access, Writing power, electric current, memory cell, power calculation, random access memory