ShenZhen Hao Qi Core Technology has opened a one-stop distribution service for components. Xilinx chips have sufficient inventory and competitive prices. Welcome to consult Hao Qi Core Technology‘s online customer service. Regarding the procurement of electronic components, for many Xiaobai, the name of the chip can make people confused. Generally speaking, a regular IC model is composed of letters + numbers + letters. Behind these letters and numbers, represent different temperatures, parameters, and packages. The editor especially took the name of the Xilinx FPGA chip to explain. As the basic common sense of chip procurement, I hope it can help those who are new to the industry to clear their doubts, what do different chip suffixes represent, and what letters and numbers represent.

The name of the Xilinx chip is explained,

XC7VX485T is the chip model, indicating that it belongs to the V7 series chip of Xilinx Company, and 485T indicates that it has 485,000 logic units.

-2 indicates the speed level. For Xilinx FPGAs, there are generally three levels of -1, -2, and -3. The larger the value, the higher the speed.

FFG represents the packaging method, 1761 represents the number of pins, and C represents the temperature grade. Here it is for commercial use. If it is I, it is for industrial use.

The same chip can have multiple speed grades, and different speed grades represent different performances, which in turn lead to huge differences in chip prices. The speed grade of the chip is not designed, but is calibrated by the actual test after the chip is produced. Faster chips have a lower percentage of total production, and their prices are correspondingly higher. So what factors lead to the performance difference of the same batch of chips, mainly in the following two points:

(1) The speed level of the chip is determined by the gate delay and line delay inside the chip. These two factors are determined by the length L and capacitance C of the transistor. The difference between these two values ​​is ultimately determined by the production process of the chip.

(2) In the chip production process, there is a stage called speed binning. It is to use a certain method to screen and classify the produced chips according to a set of standards, and then divide them into different speed grades.

The above is the naming rules of Xilinx FPGA chips, I hope it can help everyone.