Hierarchical Power Distribution with 20 Power Domains in 90-nm Low-Power Multi-CPU Processor
Hierarchical Power Distribution with 20 Power Domains in 90-nm Low-Power Multi-CPU Processor
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90 nm 低功耗多 CPU 处理器中具有 20 个电源域的分层电源分配
DOI：
10.1109/isscc.2006.1696281
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
N. Irie
中科院分区：
文献类型：
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作者：
Y. Kanno;H. Mizuno;Y. Yasu;K. Hirose;Y. Shimazaki;T. Hoshi;Y. Miyairi;Toshifumi Ishii;Tetsuya Yamada;T. Irita;T. Hattori;K. Yanagisawa;N. Irie
已经开发出具有电源树的分级配电。主要功能是电源树管理规则和分布式公共电源域实现。分层电源分配支持具有数十个电源域的细粒度电源门控，这类似于细粒度时钟门控。在多 CPU SoC 中，1,000,000 个栅极电源域的漏电流有效降低至 1/4,000，且面积开销最小。
Hierarchical power distribution with a power tree has been developed. The key features are power tree management rules and a distributed common power-domain implementation. The hierarchical power distribution supports a fine-grained power gating with dozens of power domains, which is analogous to a fine-grained clock gating. Leakage currents of a 1,000,000-gate power domain were effectively reduced to 1/4,000 in multi-CPU SoCs with minimal area overhead.