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PCB is an abbreviation for Printed circuit board. A flat board whose front contains slots for integrated circuit chips and connections for a variety of electronic components, and whose back is printed with electrically conductive pathways between the components.
FPGA is an abbreviation for Field-Programmable Gate Array. An FPGA is a specially made digital semiconductor often used for prototyping. With an FPGA, a design engineer is able to program electrical connections on site for a specific application (for example a device for a sound/video card), without paying thousands of dollars to have the chip manufactured in mass quantities.
hi purifier;
thank you for your reply, could you please introduce me an introduction web or letter about FPGA, or could you please upload that for me.
thank you.
No Problem about that. I'm glad i could help you. I'm sorry but i couldn't understand what you asked. I'll definitely help you if you can be a little more clear about that.
Incase you were asking me for some introduction on FPGA, here's a great start...
FPGAs have their historical roots in complex programmable logic devices (CPLDs) of the early to mid 1980s. CPLDs and FPGAs both include a relatively large number of programmable logic elements. CPLD logic gate densities range from the equivalent of several thousand to tens of thousands of logic gates, while FPGAs typically range from tens of thousands to several million.
The primary differences between CPLDs and FPGAs are architectural. A CPLD has a somewhat restrictive structure consisting of one or more programmable sum-of-products logic arrays feeding a relatively small number of clocked registers. The result of this is a general lack of design flexibility, with the advantage of more predictable timing delays and a higher logic-to-interconnect ratio. FPGA architectures, on the other hand, are dominated by interconnect. This makes them far more flexible (in terms of the range of designs that are practical for implementation within them) but also far more complex to design for.
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