TY - GEN
T1 - Logic-compatible embedded DRAM design for memory intensive low power systems
AU - Chun, Ki Chul
AU - Jain, Pulkit
AU - Kim, Chris H.
PY - 2010/8/31
Y1 - 2010/8/31
N2 - Circuit techniques for enabling a low power logic-compatible embedded DRAM (eDRAM) are presented. A boosted 3T gain cell utilizes preferential storage node boosting to improve data retention time and increase read margin. A regulated bit-line write scheme is equipped with a steady-state storage node voltage monitor to overcome the data '1' write disturbance problem. An adaptive and die-to-die adjustable read reference bias generator is proposed to cope with PVT variations. Measurement data from 65nm test chips demonstrate a >1.0msec retention time at 0.9V, 85°C and a <100μW per Mb refresh power at 1.0V, 85°C which translates into a 50% reduction in static power compared to a power gated SRAM.
AB - Circuit techniques for enabling a low power logic-compatible embedded DRAM (eDRAM) are presented. A boosted 3T gain cell utilizes preferential storage node boosting to improve data retention time and increase read margin. A regulated bit-line write scheme is equipped with a steady-state storage node voltage monitor to overcome the data '1' write disturbance problem. An adaptive and die-to-die adjustable read reference bias generator is proposed to cope with PVT variations. Measurement data from 65nm test chips demonstrate a >1.0msec retention time at 0.9V, 85°C and a <100μW per Mb refresh power at 1.0V, 85°C which translates into a 50% reduction in static power compared to a power gated SRAM.
UR - http://www.scopus.com/inward/record.url?scp=77955987266&partnerID=8YFLogxK
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U2 - 10.1109/ISCAS.2010.5537877
DO - 10.1109/ISCAS.2010.5537877
M3 - Conference contribution
AN - SCOPUS:77955987266
SN - 9781424453085
T3 - ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems
SP - 277
EP - 280
BT - ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems
T2 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010
Y2 - 30 May 2010 through 2 June 2010
ER -