To solve the serial dependency problem that came up with CABAC in the next generation of video coding standard called High Efficiency Video Coding（HEVC），this work proposed a low redundancy full system CABAC decoder solution. By adopting the dynamic codebook and parallel computing design, this work improved the clock efficiency and could satisfy the HEVC Level4.1 Main Tier and decode a 1080HD@60fps video with a clock of 40MHz.