A 0.9V, 65nm logic-compatible embedded DRAM with 1ms data retention time and 53 less static power than a power-gated SRAM

摘要

A logic-compatible low power eDRAM is demonstrated in 65nm CMOS achieving a retention time of 1.25msec and a static power dissipation of 91.3µW/Mb at 0.9V, 85ºC. A boosted 3T gain cell enhances data retention time and read speed. A regulated bit-line write scheme and a read reference bias generator mitigate write disturbance issues and improve tolerance to PVT variations.