A 1.0-V 230-MHz column access embedded DRAM for portable MPEGapplications

摘要

This paper describes a 32-Mb embedded DRAM macro fabricated usingn0.13-Μm triple-well 4-level Cu embedded DRAM technology, which isnsuitable for portable equipment of MPEG applications. This macro cannoperate 230-MHz random column access even at 1.0-V power supplyncondition. The peak power consumption is suppressed to 198 mW in burstnoperation. The power-down standby mode, which suppresses the leakagencurrent consumption of peripheral circuitry, is also prepared fornportable equipment. With the collaboration of array circuit design andnthe fine Cu metallization technology, macro size of 18.9 mm2nand cell efficiency of 51.3% are realized even with dual interface andntriple test functions implemented