Important: Use custom search function to get better results from our thousands of pages

Use " " for compulsory search eg:"electronics seminar" , use -" " for filter something eg: "electronics seminar" -"/tag/" (used for exclude results from tag pages)

Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Post: #1



To study and simulate design of 4bit comparator IC 7485 using VHDL.


The7485 is a 4bit magnitude comparator that can be expanded to almost any length. It has three cascade inputs A>Bin, A<Bin and A=Bin. The four bit inputs are weighted (A0-A3) and (B0-B3), where A3&B3 are the most significant bits. The cascading outputs are A>Bout, A<Bout and A equ Bout. AGTBOUT=(A>B)+(A=B). AGTBIN AEQBOUT=(A=B). AEQBIN ALTBOUT=(A<B)+(A=B). ALTBIN


The IC 7485 Design is entered through VHDL.
Simulate the design by applying test vectors-a,b, a_gt_bin,a_lt_bin, and a_eq_bin and observing output x, y, z.
It is required to lock the pins and give timing constraints.
Implement the design by passing the design by various stages by mapping, time analysis and bit stream. For locking the pins write UCF file before implementation and guide the same through option set control files. Output of the implementation is .JED file, which can be directly programmed into target device FPGA.
The last step is programming in which the programme can physically download the architecture from computer to target device FPGA

Marked Categories : ic7485, study of ic 7485 as magnitude comparator, ic 7485 comparator theory, design and implement 4 bit comparator using 7485, ic 7485 comparator cascading mode, 4 bit comparator circuit using 7485, 4 bit comparator applications of ic7485, abstract of project of 4 bit comparator, 7485s ic info, comparator ic 7485, explanation about 4bit magnitude comparator in vlsi, vhdl code for ic 7485, 4 bit magnitude comparator using ic 7485 doc, 4 bit comparator, design comparator ic 7485, 7485 comparator cascading inputs circuits, ic 7485 4 bit comparator cascading inputs, http seminarprojects com showthread php mode linear tid 85678, 7485 comparator vhdl program,

Quick Reply
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  electrical bit bank pdf Guest 1 181 18-11-2017 10:02 AM
Last Post: jaseela123
  pneumatic comparator working ppt Guest 1 229 04-10-2017 11:44 AM
Last Post: jaseela123
  advantages of a fluid displacement comparator Guest 1 0 14-09-2017 03:13 PM
Last Post: jaseela123
  design of 16 bit microprocessor using vhdl subine 1 145 13-09-2017 01:22 PM
Last Post: jaseela123
  A Reduced-Bit Multiplication Algorithm for Digital Arithmetic seminar flower 1 684 31-08-2017 03:41 PM
Last Post: jaseela123
Lightbulb 64-Bit Computing Computer Science Clay 0 5,718,160 25-08-2017 09:32 PM
Last Post: Computer Science Clay
  BIT for Intelligent System Design Electrical Fan 0 7,870,715 25-08-2017 09:32 PM
Last Post: Electrical Fan
  BIT for Intelligent system design computer science crazy 0 8,731,432 25-08-2017 09:32 PM
Last Post: computer science crazy
  verilog code for 16 bit multiplier Guest 1 0 11-08-2017 10:57 AM
Last Post: jaseela123
  fluid displacement comparator Guest 1 190 01-08-2017 10:02 AM
Last Post: jaseela123
This Page May Contain What is 4 BIT COMPARATOR (IC 7485) And Latest Information/News About 4 BIT COMPARATOR (IC 7485),If Not ...Use Search to get more info about 4 BIT COMPARATOR (IC 7485) Or Ask Here