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Etron Technology, Inc. is a world-class fabless IC design and product company, specializing in buffer memory and system on chips. Etron's full line of Buffer DRAM chips available in densities ranging from 8Mb to 1Gb is designed to ensure high processing speeds and low power consumption. The following are the product parameters of DDR1 SDRAM（Double Data Rate SDRAM）：64Mb~512Mb Density；4/5ns Speed.