Semiconductor device
US8644090B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 25, 2013 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Jun 25, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/1096
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data input buffer is changed from an inactive to an active state after the reception of instruction for a write operation effected on a memory unit. The input buffer is a differential input buffer having interface specs based on SSTL, for example, which is brought to an active state by turning on a power switch to cause a through current to flow and receives a signal therein while immediately following a small change in small-amplitude signal. Since the input buffer is brought to the active state only when the write operation's instruction for the memory unit is provided, it is rendered inactive in advance before the instruction is provided, whereby wasteful power consumption is reduced. In another aspect, power consumption is reduced by changing from the active to the inactive state in a time period from a write command issuing to a next command issuing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.