The reduction in power usage by an ASIC allows the use of less complex packages, again helping reduce the overall cost of the product, as package costs can be a third or more of the device cost. The combination of advanced geometry technologies and same core voltage as the ASIC results in more leakage, adding to the higher power usage in FPGAs. High-end FPGA technology uses smaller geometry technology than ASICs while using the same core voltage. There is no unused logic in ASICs drawing power. In the ASIC, clock drivers and networks are tailored to the specific clock network requirements and routed efficiently in metal layers. This large clock network has a sizeable capacitive load and will draw a substantial amount of power at higher frequencies. In addition, clocks are routed with predefined clock networks across the entire die, with oversized drivers to handle all potential clocking requirements. Instead, a signal must be routed through many programmable routing switches and wire segments, each with considerable capacitive overhead, which causes an increase in power consumption. What makes FPGAs and ASICs special is that they are very good at performing a. ![]() The code that you write makes real physical connections with wires to perform the function that you need. An FPGA cannot be directly routed from point A to point B on a chip. An FPGA is a component that can be thought of as a giant ocean of digital components (gates, look-up-tables, flip-flops) that can be connected together by wires. This is largely due to how FPGAs are routed. Conversion Reference ManualĪs device speeds increase, FPGAs experience a dramatic increase in power consumption over an ASIC design. We also maintain manufacturing processes for long periods of time to help ensure an uninterrupted supply. onsemi offers competitive design cycle times, allowing for a quick ramp to production. This leverages the inherent flexibility of an FPGA during the development phase while accelerating the path to low-cost production with an ASIC. Onsemi provides a parallel development path for FPGA development. This added reliability makes ASICs the obvious choice for flight-critical applications where SRAM based FPGAs are typically not qualified. In contrast to the programmable logic used in FPGAs, the hard-coding of the logic in an ASIC does not allow reprogramming of the device, thereby increasing security and reliability. The significant power savings realized through using an ASIC in place of an FPGA significantly increases battery life. ![]() However, the appeal of FPGA to ASIC conversions goes far beyond the cost savings. The lower unit cost of an ASIC has long been a key motivating factor in such conversions. Onsemi has successfully converted thousands of designs from costly FPGAs to efficient ASICs throughout the past few decades.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |