scorpionss22
Full Member level 2
hi all i study electronical engineering
and i wanna know what is ASIC mean
and ist good form me
and i wanna know what is ASIC mean
and ist good form me
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asic1984 said:hi
asic : application specific ic
of rmore informations in this field u can read a book like :
Essential Electronic Design Automation (EDA)
By Mark D. Birnbaum
Publisher : Prentice Hall PTR
Pub Date : October 01, 2003
ISBN : 0-13-182829-0
scorpionss22 said:hi all i study electronical engineering
and i wanna know what is ASIC mean
and ist good form me
zyphor said:ASIC is a general definition of IC field, and are different with general -purpose IC, such as CPU, DSP.
Big Boy said:ASIC is a custom-designed chip that does any specific function.
For example, if a company X design a device, it can do it in an FPGA. However, there's some limitations to FPGA (speed, functions, ...). So, when a design is completed, that can build it into an ASIC.
The process of making ASIC is very costly. If you have a bug in an ASIC, you can't correct it. You have to design a new ASIC with the corrections, which imply more cost.
However, when done in large quantity, ASIC become cheaper than FPGA.
A design on an ASIC take much less space than on an FPGA (dye size). So, you can put much more stuff in an ASIC than an FPGA. If you would compare ASIC and FPGA to a software analogy, an FPGA would be an emulator, where an ASIC would be the real machine.
A SOC is a system on chip. Basically, it's a way of putting the processor, IO, timers, ... on a single chip. It's analog to a microcontroler, but can incorporate many more things, like Ethernet MAC, video processor, ...
A SOC can be implemented in an FPGA.
So, to come to the first question asked, ASIC is really intended for big company, having a lot of money, with the objective of selling soo much of those ASIC that eventually, the cost of the manufacturing of the ASIC will come lower than selling the same amount of units in FPGA. In other words, it's not good to design ASIC if you don't plan to sell less than 250 000 to 1 milion units.
FPGA on the other hand is the ideal choise for low volume, rapid prototyping, corrections, ... In an FPGA, if you have a design, you can verify immediately if it work. If you have corrections to do to the design, you can see the result in little time. With ASIC, it takes days/weeks just to design the first prototypes. If you have bugs, you're stuck with it until another few weeks (until a new ASIC respin). Also, since each ASIC respin cost money, you would like to wait, and live with the bugs a long time, to make sure you find the largest amount of bugs before re-spining the AISC. With FPGA, if you find a bug, you can easily find it, correct it, and test the corrections the very same day, for no additional cost.
Many companies do ship commerial boards with FPGA on it. Plus, the newer FPGA are becoming soo cheap that it often cheaper to design with them, even in large quantities. Plus, the speed of FPGA are getting much higher with the years.
I hope this answer some questions
Big Boy
scorpionss22 said:hi all i study electronical engineering
and i wanna know what is ASIC mean
and ist good form me