发明名称 |
Low leakage circuits, devices, and techniques |
摘要 |
An integrated circuit includes circuitry organized into sub-blocks, and power supply selection circuitry operative to selectively adjust the connectivity of power supply terminals of the sub-blocks. When the integrated circuit is operating in an active mode, the power supply selection circuitry couples the sub-blocks in parallel between upper and lower active-mode power supplies; when the integrated circuit is operating in a standby mode, the power supply selection circuitry couples two or more sub-blocks in series between upper and lower standby-mode power supplies. Additionally, in standby mode, isolation circuitry within a sub-block is activated to isolate circuitry within the sub-block from input or output terminals of the sub-block. |
申请公布号 |
US9160312(B2) |
申请公布日期 |
2015.10.13 |
申请号 |
US201313763190 |
申请日期 |
2013.02.08 |
申请人 |
DUST NETWORKS, INC. |
发明人 |
Lemkin Mark Alan |
分类号 |
G06F1/00;H03K3/011;G11C11/417;G11C5/14 |
主分类号 |
G06F1/00 |
代理机构 |
McDermott Will & Emery LLP |
代理人 |
McDermott Will & Emery LLP |
主权项 |
1. A method for reducing leakage current in an integrated circuit comprising a plurality of sub-blocks of circuitry each including an upper power-supply terminal, a lower power-supply terminal, and an input or output signal terminal, the method comprising steps of:
coupling the upper and lower power-supply terminals of the sub-blocks of the plurality of sub-blocks to couple the sub-blocks in parallel between upper and lower active-mode power supplies when the integrated circuit is operating in an active mode; coupling the upper and lower power-supply terminals of two or more sub-blocks of the plurality of sub-blocks to couple the two or more sub-blocks in series between upper and lower standby-mode power supplies when the integrated circuit is operating in a standby mode; and activating isolation circuitry within one of the two or more sub-blocks to isolate circuitry of the one sub-block from the input or output signal terminal of the one sub-block when the integrated circuit is operating in the standby mode. |
地址 |
Hayward CA US |