- #1
DFZXA
- 4
- 0
Homework Statement
Begin the design of the multiplier by adding more detail to the block diagram. The parts
available for your design are
• D Flip-flops (74LS74A)
• 1 4-bit Up/Down Counter (74LS169)
• 1 4-to-1 MUX
• 1 4-bit Adder (74LS283)
• 2 4-bit Parallel Shift Registers (74LS194A)
• Various NAND/AND/OR/NOT gates
Basically need to design a 4 bit multiplier using these parts. The block diagram that is referred to is just showing how everything connects up.
Homework Equations
n/a
The Attempt at a Solution
My attempt is in a file below because I thought that would be the best way to show it. I know it said not to use pictures in the rules, but I think it's ok for this right? My screen print cut off the very bottom wire, so yeah I used paint to put it back in sorry about that. My basic problem here is The D flip-flop that goes into the shift register keeps outputting high impedance. I tested this using 1011 as the multiplicand and 0111 as the multiplier. I'm also designing this in Allegro Design Entry.