K. Nii, Y. Masuda, M. Yabuuchi, Y. Tsukamoto, S. Ohbayashi, S. Imaoka, M. Igarashi, K. Tomita, N. Tsuboi, H. Makino, K. Ishibashi, H. Shinohara
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A 65 nm Ultra-High-Density Dual-Port SRAM with 0.71um/sup ~/ 8T-Cell for SoC
We propose a new access scheme of synchronous dual-port (DP) SRAM that minimizes area of 8T-DP-cell and keeps cell stability. A priority row decoder circuit and shifted bit-line access scheme eliminates access conflict problem. Using 65nm CMOS technology (hp90), we fabricated 32KB DP-SRAM macros with the proposed scheme. We obtain 0.71mum2 8T-DP-cell, which cell size is 1.44times larger than 6T-single-port (SP) cell
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