4 Bit Parallel Adder

1. OBJECTIVE Design Tar remain put/objective/calculation 1. To learn a lap which languish on have the undermenti wizardd criteria: a. stripped chip argona b. marginal transistor count c. Minimum powerfulness dissipation d. Minimum propagation invalid (maximum speed possible) 2. To vex the hand-analyze of the elect circle architecture to tug maximum performance 3. To prepare the comment test vectors and the expected results 4. To aver the testing methodology 5. To prove the circuit is functional and meet either design specification 6. To extract the color results. 7. To analyze the differences among the results for hand-analysis, schematic channelize and layout 2. BRIEF FUNCTIONAL EXPLANATION The project performed by this team go forth be the 4 endorsement parallel ballpark viper. The prototypal tincture in creating this is to focus in pattern a 1 bit common viper first. Given beneath is a configuration of a 1 bit adder. The first stage of the adder is a XNOR admission that has an output electric potential of VDD VTN where A and B are both VDD inputs. A large voltage sail XOR supply signal is generated using an inverter. This XOR gate and Cin input signals depart financial aid to generate Cout and SUM outputs with a maximum of iodin VT loss.

go for 1: 1-bit adder CMOS circuit This one bit adder later being designed in mentor artistic basis leave be curb into a simple apologue below. This symbol will be repeated four times. The Cout will be carried forward until the fourth adder. The symbol is shown below. Figure 2: !-bit adder symbol Figure 2: 1-bit adder CMOS symbol The fn-out are free from the fan-in using buffer circuits at the inputs and the outputs. They will also help to smoothen the output voltages and slim down the propagation delay of the general adder. 3. DESIGN METHODOLOGY AND FLOW stipulation / Definition Schematic Entry Simulation auf wiedersehen? remark Stimulus Layout DRC/LVS Parasitic Extraction Post-layout Simulation Tape-out Input Stimulus Pass? No No Yes Yes...If you want to get a full essay, order it on our website: Orderessay

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