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Low-Power Dynamic Memory Word Line Decoding for Static Random Access Memories Gi
提出一种低功耗动态存储器字线解码器,显著降低未选中存储区的功耗和泄漏。
170 ps 延迟(1.5V),泄漏降低20倍(>0.8V)
动态解码器泄漏降低SRAM功耗优化字线解码
▸创新点1:动态字线解码器设计(电路创新)。该论文提出了一种基于动态电路的动态字线解码器,相比传统的静态CMOS解码器,显著降低了时钟负载和功耗,同时提高了解码速度。在16个解码器的多存储区阵列中,动态解码器的能量-延迟积比低功耗静态版本降低了66%。
▸创新点2:减少未选中存储区的泄漏功耗(电路创新)。通过利用动态电路的可预测性,该设计显著降低了未选中存储区的泄漏功耗。实验结果表明,在电压大于0.8V时,泄漏功耗减少了20倍以上。
▸创新点3:优化时序以消除竞争(系统创新)。该动态解码器设计优化了时序,确保了无竞争的感知时序,从而提高了存储器的整体访问速度和可靠性。测试芯片的地址到字线延迟在1.5V电压下仅为170ps。
Abstract
nthapadmanabhan , Student Member , IEEE,
Sayeed A. Badrudduza, and Lawrence T. Clark , Senior Member , IEEE
Abstract—Conventional memory address decoders based on
static CMOS gates incur high clock loading and unnecessary
power dissipation in unselected banks. This paper presents a
dynamic word line decoder which is fast, has reduced active and
leakage power dissipation, and also enables faster race-free sense
timing. In a multi-bank memory array with sixteen decoders, the
energy–delay product o