AL422B 数据表
The AL422 consists of 3M-bits of DRAM, and is configured as 393,216 words x 8 bit FIFO (first infirst out). The interface is very user-friendly since all complicated DRAM operations are alreadymanaged by the internal DRAM controller.Current sources of similar memory (field memory) in the market provide limited memory size whichis only enough for holding one TV field, but not enough to hold a whole PC video frame whichnormally contains 640x480 or 720x480 bytes. The AverLogic AL422 provides 50% more memoryto support high resolution for digital PC graphics or video applications. The 50% increase in speedalso expands the range of applications.