【正文】 s=+10 + Tpg= Rsh=60 Cgso= + Cgdo= Cj= Mj= + Cjsw= Mjsw= .model pmos pmos + Level=2 Ld=.03000u Tox= + Nsub=+16 Vto= Kp= 6 + Gamma= Phi=.541111 Uo= + Uexp= Ucrit=637449 Delta= + Vmax= Xj= Lambda= + Nfs=+11 Neff= Nss=+10 + Tpg= Rsh=150 Cgso= + Cgdo= Cj= Mj=.341 + Cjsw= Mjsw= 輸出級(jí)電路設(shè)計(jì) 據(jù)要求，輸出級(jí)等效電路如圖 3 所示。 1 一．目的與任務(wù) ............................................................................................................ 3 二．設(shè)計(jì)題目及要求 .................................................................................................... 3 器件名稱 ........................................................................................................... 3 要求的電路性能指標(biāo) ...................................................................................... 3 設(shè)計(jì)內(nèi)容 .......................................................................................................... 3 三、 74HC139 芯片介紹 ............................................................................................... 3 四、電路設(shè)計(jì) ................................................................................................................ 5 工藝與設(shè)計(jì)規(guī)則和模型的選取 ...................................................................... 5 輸出級(jí)電路設(shè)計(jì) ............................................................................................ 6 輸出級(jí) N 管（ W/L） N的計(jì)算 ............................................................ 6 輸出級(jí) P 管（ W/L） P的計(jì)算 .............................................................. 7 內(nèi)部基本反相器中的各 MOS 尺寸的計(jì)算 ................................................. 8 內(nèi)部邏輯門 MOS 尺寸的計(jì)算 ...................................................................... 11 輸入級(jí)設(shè)計(jì) .................................................................................................. 11 緩沖級(jí)的設(shè)計(jì) .............................................................................................. 12 輸入緩沖級(jí) ........................................................................................... 12 輸出緩沖級(jí) ........................................................................................... 13 輸入保護(hù)電路設(shè)計(jì) ...................................................................................... 14 各級(jí) N 管和 P 管的尺寸匯總 ....................................................................... 15 五、功耗與延遲估算 .................................................................................................. 16 模型簡化 ...................................................................................................... 16 功耗估算 ...................................................................................................... 17 延遲估 算 ...................................................................................................... 18 六、電路模擬 .............................................................................................................. 19 直流分析 ........................................................................................................ 20 瞬態(tài)分析 ....................................................................................................... 20 功耗分析 ....................................................................................................... 21 七、版圖設(shè)計(jì) .............................................................................................................. 21 各模塊版圖設(shè)計(jì) ........................................................................................... 21 2 輸入級(jí)版圖 ......................................................................................... 21 輸入緩沖級(jí)版圖 ................................................................................ 22 三輸入與非門版圖 ...........................................................................