说明：  三星公司SDRAM（K4S643232H-TC/L60 4 Banks x 512K x 32Bit Synchronous DRAM） 器件操作时序，本中文的页码和原英文对应的页码内容相对应
(Samsung SDRAM (K4S643232H-TC/L60 4 x 51 Banks 2K x USB Synchronous DRAM) devices operate timing, the pages of the Chinese and English counterparts of the original pages should be relatively content)