?? 右移移位寄存器.ewb
字號:
Electronics Workbench Circuit File
Version: 5
Charset: ANSI
Description:
" 上圖是由4個JK觸發(fā)器組成的右向(由高到低)移位寄存器邏輯電路圖。圖中 各觸發(fā)器的CP端接在一起作移位脈沖控制端;最低位觸發(fā)器的J、K端作為數(shù)碼輸入端;前一個觸發(fā)器的輸出端與后一個觸發(fā)器的J、K端連接。"
" 設(shè)4位二進制數(shù)碼d4d3d2d1=1110,按移位脈沖的工作節(jié)拍,從低位到高位逐位送到J、K輸入端。根據(jù)JK觸發(fā)器的特性方程Q^n+1=J[Q^n]'+K'Q^n,經(jīng)過第1個時鐘脈沖CP后,Q4=d1;經(jīng)過第2個時鐘脈沖CP后,F(xiàn)4的狀態(tài)移入F3,而F4又移入新的數(shù)碼,即變成Q3=d1,Q4=d2,依此類推,經(jīng)過4個脈沖后Q4=d4,Q3=d3,Q2=d2,Q1=d1。4位數(shù)碼1110依次全部存入寄存器中。可見數(shù)碼由高位觸發(fā)器逐次移入低位觸發(fā)器,是一個右向移位寄存器。"
EncryptionType: 2
UsingVectorGraphics: 0
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