脈衝式正反器PULSE-BASED FLIP FLOP

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

13/853,064

專利證號

US 8,947,146 B2

專利獲證名稱

脈衝式正反器PULSE-BASED FLIP FLOP

專利所屬機關 (申請機關)

國立交通大學

獲證日期

2015/02/03

技術說明

本發明為一低電壓低功率之脈衝觸發型正反器，包含第一級的脈衝產生器及第二級的閂鎖器。相較於由多個反相器串接的傳統式脈衝產生器，本脈衝產生器僅使用五個電晶體即可產生足夠的脈衝寬度。閂鎖器則包含傳遞電路、儲存電路跟控制電路，其運作機制能避免電流競爭，可降低動態功耗，且由於內部節點皆為靜態電路，極適合低電壓應用。此外，此正反器之堆疊架構可有效抑制漏電流的消耗。本發明可操作在0.3V的低電壓下，相較於現有低功率正反器可節省27%以上的動態功耗和22%以上的漏電流。 The proposed 22T CSC-PL applies the modified implicit pulsed-latch (I-PL) structure to simplify circuit complexity. It completes storage function with minimal switching nodes for active power saving, and suppresses the leakage current by stacked transistors. The extra glitch power, caused by redundant input transitions from pipeline computation logics, is also reduced by its pulse-triggered property. In addition, CSC-PL is designed as fully static without current contention nodes to ensure sufficient reliability for voltage scaling. Comparing to mainstream power-efficient master-slave (MS) FFs, the proposed CSC-PL is able to operate at 0.35V, and reduces 45% active power, 58% glitch power and 28% leakage current. Consequently, 28% of total system energy can be reduced.

備註

本部(收文號1100065219)同意該校110年10月27日陽明交大研產學字第1100036963號函申請終止維護專利(陽明交大)

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