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Pseudostatics Sram (pSRAM) PSRAM uses 1T + 1C technology, so smaller in size, the I / O interface of PSRAM is the same as that of SRAM there are currently 4MB, 8MB, 16MB, 32MB, 64MB and 128MB in capacity. Can provide a wide range of bandwidth from 100Mbps ~ 2.128Gbps.

SPI pSRAM SPI interface or QPI interface, can realize the expansion of SRAM simply; Easier to use than SDRAM, power consumption is much lower; The capacity is 64Mbit / 32Mbit / 16Mbit, the package is SOP-8;

Serial interface DDR OPI RAM  Larger than 3Gbps when clock rate is 200MHZ with Octal Bus Double‐Data‐Rate. The 64M memory size is much larger than the other serial interface RAM in the current market. Used the advanced DRAM process technology to reduce the chip size, the production cost is close to the cost of DRAM.  The lower pin count package can provide the smaller size and the lower assembly cost than the conventional RAM. No refresh cycles needed because of the emerging design technology, the interface is more simple than the conventional RAM.