What are the cost and delay for Stage 5 of a carry-lookahead adder? What is the...
- What are the cost and delay for Stage 5 of a carry-lookahead adder? What is the total cost of an 8-bit carry-lookahead adder?
- (2.5 points) Implement the functionf(x1,x2,x3) = x2x3 + x1x3 + x1x2 using a 2:1 multiplexer and other logic gates (AND, OR, XOR, NOT).
- (2.5 points) Implement the function
f(x1,x2,x3,x4) = Π M(0,1,4,5,7,10,11,14) using
logic gates and
a. an 8:1 multiplexer, with x1, x2 and x3 as select signals.
b. a 4:1 multiplexer, with x3 and x4 as select signals.
Homework Answers
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What are the cost and delay for Stage 5 of a
carry-lookahead adder? What is the...
1. The following parts are about a 4-bit carry-lookahead adder (CLA) (3 points) Write the expanded...
1. The following parts are about a 4-bit carry-lookahead adder (CLA) (3 points) Write the expanded equations for os and cs of a 4-bit carry- lookahead adder, given Co, X3:0, and узо (make sure you know what"хзо" means). Write the generic forms of p, and g a. X3 : 0 (3 points) Calculate the hardware cost of just Stage 2? Include the cost for sa. (Remember the cost of a 3-input XOR?) b. (3 points) Determine the critical path (longest...
In the lookahead carry examples in the text, the span of the lookahead logic was 4 bits. Now assu...
In the lookahead carry examples in the text, the span of the
lookahead logic was 4 bits. Now assume that the span of the
lookahead logic increases to 6 bits. Show the block diagram for a
32-bit adder similar to figure 9.5 in the text and compute what the
total gate delay is to c32 and s31 .
7-4 7-4 13-0 3-0 15-12 15-12 11-8 y11-8 C12 C8 C0 4-bit adder 4-bit adder 4-bit adder 4-bit adder C16 S11-8 S7-4...
2. Consider two adders: a 64-bit ripple-carry adder and a 64-bit carry-lookahead adder with 4-bit blocks....
2. Consider two adders: a 64-bit ripple-carry adder and a 64-bit carry-lookahead adder with 4-bit blocks. These adders are built using only two-input gates. Each two-input gate has an area of 15 um', has a 50 ps delay, and has 20 ff of total gate capacitance. You may assume that the static power is negligible. (a) Determine the area, delay, and power of the adders (operating at 100 MHz and 1.2 V). (b) Draw a table containing the area, delay...
3. Digital circuits question. The figure below shows a 16-b carry-skip adder. It is composed of...
3. Digital circuits question.
The figure below shows a 16-b carry-skip adder. It is composed of 4 4-bit ripple carry adders and some extra logic to route the carry. Each 4bit ripple carry adder generates a group propagate signal. This is used to determine when the carry-in is going to be propagated all the way to the carry-out. When this is the case, addition is sped up by allowing the carry-in to skip the block and become the carry-in of...
3.Consider a N-bit carry-skip adder with B bits per block. Assume that one stage of carry rippler...
***Please be coherent and conscience.
3.Consider a N-bit carry-skip adder with B bits per block. Assume that one stage of carry ripplery) has the same delay of one skip logic stage (tskip) and both are 1. Determine the block size Bopt that mininizes the worse-case delay time.
3.Consider a N-bit carry-skip adder with B bits per block. Assume that one stage of carry ripplery) has the same delay of one skip logic stage (tskip) and both are 1. Determine the...
Change a 8 bit ripple carry adder to a carry select adder having 2 full adders and MUX(s) delay.
Change a 8 bit ripple carry adder to a carry select adder having 2 full adders and MUX(s) delay.
Find the propagation delays for a 20 bit ripple carry adder Given the following propagation delays...
Find the propagation delays for a 20 bit ripple carry adder Given the following propagation delays Component AND Propagation Delay 9 OR 8 XOR 7 And that each full adder is implemented as A x1 A BlX1 B Cin Sum Cinx1(cin Cin x1 Cout Hint Draw out at least a 4-bit ripple carry adder before trying to answer this question.
Find the propagation delays for a 19 bit ripple carry adder Given the following propagation delays...
Find the propagation delays for a 19 bit ripple carry adder
Given the following propagation delays
Find the propagation delays for a 19 bit ripple carry adder Given the following propagation delays Propagation Delay Component AND OR XOR 8 10 And that each full adder is implemented as Cin x1 Сin os sum Cout Hint Draw out at least a 4-bit ripple carry adder before trying to answer this question.
Consider a N-bit carry-skip adder with B bits per block. Assume that one stage of carry ripple (t...
Consider a N-bit carry-skip adder with B bits per block. Assume that one stage of carry ripple (tcarry) has the same delay of one skip logic stage (tskip) and both are 1. Determine the block size Bopt that mininizes the worse-case delay time Please provide a neat solution
need help please thanks! Draw a gate-level schematic for the fall-adder module. XOR gates can be...
need help please thanks!
Draw a gate-level schematic for the fall-adder module. XOR gates can be used to usplement Sotput; two levels ofNAND ples are handy for tn lema îngC, as a sum of products Create a MOSFET cirout for each of the logic gates you used in step 1 Your lab assigment this week is to design and test a CMOS circuit that performs addition Some suggestions on how to proceed Let's start with a simple ripple-cany adder based...
1. The following parts are about a 4-bit carry-lookahead adder (CLA) (3 points) Write the expanded equations for os and cs of a 4-bit carry- lookahead adder, given Co, X3:0, and узо (make sure you know what"хзо" means). Write the generic forms of p, and g a. X3 : 0 (3 points) Calculate the hardware cost of just Stage 2? Include the cost for sa. (Remember the cost of a 3-input XOR?) b. (3 points) Determine the critical path (longest...
In the lookahead carry examples in the text, the span of the
lookahead logic was 4 bits. Now assume that the span of the
lookahead logic increases to 6 bits. Show the block diagram for a
32-bit adder similar to figure 9.5 in the text and compute what the
total gate delay is to c32 and s31 .
7-4 7-4 13-0 3-0 15-12 15-12 11-8 y11-8 C12 C8 C0 4-bit adder 4-bit adder 4-bit adder 4-bit adder C16 S11-8 S7-4...
2. Consider two adders: a 64-bit ripple-carry adder and a 64-bit carry-lookahead adder with 4-bit blocks. These adders are built using only two-input gates. Each two-input gate has an area of 15 um', has a 50 ps delay, and has 20 ff of total gate capacitance. You may assume that the static power is negligible. (a) Determine the area, delay, and power of the adders (operating at 100 MHz and 1.2 V). (b) Draw a table containing the area, delay...
3. Digital circuits question.
The figure below shows a 16-b carry-skip adder. It is composed of 4 4-bit ripple carry adders and some extra logic to route the carry. Each 4bit ripple carry adder generates a group propagate signal. This is used to determine when the carry-in is going to be propagated all the way to the carry-out. When this is the case, addition is sped up by allowing the carry-in to skip the block and become the carry-in of...
***Please be coherent and conscience.
3.Consider a N-bit carry-skip adder with B bits per block. Assume that one stage of carry ripplery) has the same delay of one skip logic stage (tskip) and both are 1. Determine the block size Bopt that mininizes the worse-case delay time.
3.Consider a N-bit carry-skip adder with B bits per block. Assume that one stage of carry ripplery) has the same delay of one skip logic stage (tskip) and both are 1. Determine the...
Find the propagation delays for a 20 bit ripple carry adder Given the following propagation delays Component AND Propagation Delay 9 OR 8 XOR 7 And that each full adder is implemented as A x1 A BlX1 B Cin Sum Cinx1(cin Cin x1 Cout Hint Draw out at least a 4-bit ripple carry adder before trying to answer this question.
Find the propagation delays for a 19 bit ripple carry adder
Given the following propagation delays
Find the propagation delays for a 19 bit ripple carry adder Given the following propagation delays Propagation Delay Component AND OR XOR 8 10 And that each full adder is implemented as Cin x1 Сin os sum Cout Hint Draw out at least a 4-bit ripple carry adder before trying to answer this question.
need help please thanks!
Draw a gate-level schematic for the fall-adder module. XOR gates can be used to usplement Sotput; two levels ofNAND ples are handy for tn lema îngC, as a sum of products Create a MOSFET cirout for each of the logic gates you used in step 1 Your lab assigment this week is to design and test a CMOS circuit that performs addition Some suggestions on how to proceed Let's start with a simple ripple-cany adder based...
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