【正文】
10 1?234和輸出端5,3,14,12 A1,A2,A3,A4 運(yùn)算輸入端6,2,15,11 B1,B2,B3,B4 運(yùn)算輸入端7 C0 進(jìn)位輸入端9 C4 進(jìn)位輸出端8 GND 接地(0V)16 Vcc 正電壓電源 推薦工作條件表 22 SMIC 工藝工作條件 電特性表 231 直流工作規(guī)格Symbol Parameter Conditions MinTyp(Note 1)Max UnitsVIInput clamp voltage CV=Min I=18mA VDM54 Lever Output Voltage,OHMinax?ILIiDM74 VDM54 ,COVixILIHan?DM74 OLVLow Lever Output Voltage 4,OCmAMiDM74 VA B currentMax input voltagex7iV?CO mAA B 40IHHigh Lever Input CurrentCO 20uA3 / 36A B Lever Input CurrentCVMax?CO mADN54 100OSIShort circuit output x(Note 2) DM74 100mA1CISupply current CVa?(Note 3) 19 34 mA2ISupply currentMx(Note 4) 22 39 mA表 232 交流特性 2LKR?? 15LCpF0LpSymbol Parameter From(Input)To(Output)Min Max Min MaxUnitsPLHtPropagation Delay Time Low to High Lever OutputCO to 1?,210 11 nsPHLtPropagation Delay Time High to Low Lever OutputCO to 1,210 12 nsPLHtPropagation Delay Time Low to High Lever OutputCO to 3?10 11 nsPHLtPropagation Delay Time High to Low Lever OutputCO to 3?10 12 nsPLHtPropagation Delay Time Low to High Lever OutputCO to 410 11 nsPHLtPropagation Delay Time High to Low Lever OutputCO to 4?10 12 nsPLHtPropagation Delay Time Low to High Lever OutputiorBA to i10 11 nsPHLtPropagation Delay Time High to Low Lever Outputior to i?10 12 nsPLHtPropagation Delay Time Low to High Lever OutputCO to C4 8 10 nsPHLtPropagation Delay Time High to Low Lever OutputCO to C4 8 11 nsPLHtPropagation Delay Time Low to High Lever OutputiorBA to C4 8 10 nsPHLtPropagation Delay Time High to Low Lever Outputior to C4 8 11 ns5 / 36 真值表表 24 真值表 表達(dá)式定義兩個(gè)中間變量 Gi 和 Pi: 所以: 進(jìn)而可得各位進(jìn)位信號(hào)的羅輯表達(dá)如下 電路圖圖 227 / 36第 3 章 電路設(shè)計(jì)及器件參數(shù)設(shè)計(jì) 性能指標(biāo)Vdd=,VoH=,Vol=可驅(qū)動(dòng) 10 個(gè) LSTTL 電路(相對(duì)于 15pf 電容負(fù)載)1rftns?/6TLH??/ 10PitABCons??/ 2LHiiS32,