The 1Gb DDR2 SDRAM is organized as a 32Mbit x 4 I/Os x 8 banks, 16Mbit x 8 I/Os x 8banks or 8Mbit x 16 I/Os x 8 banks device. This synchronous device achieves high speed double data-rate transfer rates of up to 667Mb/sec/pin (DDR2-667) for general applications.