【논리설계】 응용 : 덧셈기

응용 : 덧셈기

 

추천글 : 【논리설계】 논리설계 목차

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▧ half adder

 

 

Figure 1. half adder 회로도

 

▧ full adder

 

 

Figure 2. full adder 회로도

 

 

Figure 3. 2 half adder로 구현한 full adder

 

▧ ripple-carry adder

 

 

Figure 4. ripple-carry adder 회로도

 

▧ carry-lookahead adder: 4-bit adder

 

 

Figure 5. carry-lookahead adder의 점화식(1)

 

 

Figure 6. carry-lookahead의 점화식(2)

 

 

 

Figure 7. carry-lookahead adder (4-bit)의 회로도

 

 

▧ hierarchical carry-lookahead: 16-bit adder

 

 

Figure 8. 16-bit carry-lookahead adder cascading 4 4-bit carry-lookahead adders

 

▧ adder/subtracter

 

Figure 9. calculator implementing both addition and subtraction

 

▧ carry-select adder

 

Figure 10. carry-select adder with hierarchy

 

입력 : 2016.12.04 21:16