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How do you design 32 to 1 multiplexer b using a 4 to 1 multiplexer?
Wiki User
∙ 11y ago
To build a 64 to 1 multiplexer using cascaded 8 to 1 multiplexer, use nine 8 to 1's. Connect the first 8 to each of the 64 inputs, then connect the ninth to the outputs of the first eight. Connect the three address lines of the eight together to form 3 of the address lines. Connect the three address lines of the ninth to form the other three, for a total of 6 address lines selecting 1 of 64 inputs.
This is a lot of logic. Fan-in and fan-out may be considerations. If you are trying to scan 64 switches, there may be a better way using an 8-bit output connected to a switch matrix (with diodes if you need more than one at a time close-able) and then connected to an 8-bit input. Even better, consider the 8279 keyboard/display controller.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoA multiplexer will have 2n inputs, n selection lines and 1 output.
A 16 input multiplexer accepts 16 inputs i. e. 24 and requires 4 selection lines.
An 8 input multiplexer accepts 8 inputs i. e. 23. And it needs 3 selection lines.
To realize a 16:1 multiplexer, two 8:1 multiplexers are required. They provide 16 inputs (8+8).
Join the three selection lines of each MUX. Now we require 16 combinations from selection lines. i. e.
0000, 0001, 0010, 0011, 0100, 0101, 0110, 0111
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1000, 1001, 1010, 1011, 1100, 1101, 1110, 1111
We know that 000, 001, 010, 011, 100, 101, 110,111 are common. Only the first bit differs (0 or 1). Hence, apply the fourth selection line as it is (i. e. 1) to upper 8:1 MUX and apply it complimented (i. e. 0) to lower MUX. Now it acts as 16:1 MUX.
Wiki User
∙ 13y agoDraw your truth table for the full adder, then incorporate the outputs of the full addder with the inputs of the multiplexer. when your finish you should be able to derive your boolean expressions from your truth table in order to design your circuit.
Wiki User
∙ 13y agoTheoretically you use five 4-to-1 multiplexers. You use four of them to connect the 16 inputs. You then have four outputs. Take the fifth multiplexer and connect the four outputs as the inputs. The fifth multiplexer then has a single output that has multiplexed the original 16 inputs.
Wiki User
∙ 11y agoA 8 1 MUX can easily be made by using two 4 1 MUX and a 2 1 MUX .....
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What is VHDL program for 64 to 1 multiplexer using four 4 to 1 multiplexers?
Personally describing VHDL code for multiplexer can be quite difficult without prior knowledge. It takes many VHDLs to be a multiplexer.
Can inverter circuit be design from multiplexer circuit?
MUX(A, B, S) = A*S + B*S' NOT(A) = MUX(0, 1, A) = 0*A + 1*A' = A' From http://noyesno.net/
How is half adder implemented using null convention logic?
by using 4 NCL gates we can design or implement a half adder.gates used in half adder are TH12[1 GATE],TH22[1 GATE] and TH24COMP0 [2 GATES].this NCL have a concept of DUAL-RAIL.output we get for this are S0,S1,Cout0,Cout1.
What numbers can be stored using 32-bit binary?
A 32 binary number is a number stored by a computer in 32 bits. it can represent: 1) An unsigned number in the range 0 to 4,294,967,295 2) A signed number in the range -2,147,483,648 to 2,147,483,647 3) A single precision IEEE floating point number with 1 sign bit, 8 exponent bits and 23 mantissa bits give an accuracy of about 7.2 decimal digits and a range of ± 10^-38 to 10^38
The 6 steps of the design process?
1. Design Brief 2. Investigation 3. Designing 4. Producing 5. Analyzing and evaluating 6. Design Process and Wall Charts
How Design a 3 input AND gate using 2 by 1 Multiplexer only?
help
What is VHDL program for 64 to 1 multiplexer using four 4 to 1 multiplexers?
Personally describing VHDL code for multiplexer can be quite difficult without prior knowledge. It takes many VHDLs to be a multiplexer.
A 4 variable logic expreSSion can be realized using which multiplexer?
using 8:1 mux....
How do you construct half adder using 2 1 multiplexer?
Use the multiplexer to choose the correct output based on the inputs (use the truth table).
Can inverter circuit be design from multiplexer circuit?
MUX(A, B, S) = A*S + B*S' NOT(A) = MUX(0, 1, A) = 0*A + 1*A' = A' From http://noyesno.net/
What are advantages and disadvantages of multiplexer?
Advantages are 1: it reduces number of wires. 2:it reduces circuit complexity and cost. 3:it simplifies logic design. 4:we can implement many combinational circuits using MUX. 5:it does not need kmaps and simplification.
What is strobe input in multiplexer?
It is the enable line. Used to enable the multiplexer to function. For low enable multiplexers, strobe is set to 0 to enable the multiplexer whereas in high enable multiplexers, it is set 1 to enable the multiplexer.
How can you implement an 8 to1 multiplexer by using two 4 to1 multplexers?
You don't need two 4-to-1 multiplexers. You only need one 4-to-1 multiplexer, and something that functions as a 2-to-1, like a single 2-input OR gate with one input grounded.
What are the release dates for Checkmate - 1960 Death by Design 1-32?
Checkmate - 1960 Death by Design 1-32 was released on: USA: 20 May 1961
How many address lines are there in a 16 to 1 multiplexer?
20 address line available in 16 to 1 multiplexer 16 for input lines and 4 will be selection lines.
Is it possible to make circuit with only multiplexers?
Yes. Any basic gate's Boolean expression can be implemented using a 2:1 multiplexer and hence any combinational circuit can be implemented using only multiplexers.
Is Multiplexer acts as not gate?
f = ~s.a + s.b , thus is the function for a multiplexer. let a not gate with input x and output y. set a = 1 and b =0 to get a not gate. y = ~x.1 + x.0
