Clock supplying circuit and integrated circuit device using it
US6150866A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1997 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Nov 24, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/133
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A clock supplying circuit that supplies a clock to a plurality of controlled circuits 451-454 arranged in respectively different positions. A forward and backward wiring 41, 42 and an internal clock supply wiring 43 are arranged along controlled circuits. A main clock drive circuit 40 is for outputting a first clock to the forward wiring 41 and is for outputting a second shorter phase than the first clock to the internal clock supply wiring 43. A plurality of local clock drive circuits 441-444 arranged close to the controlled circuits, are supplied with a forward clock propagated along the forward wiring and with a back clock propagated along the backward wiring, and are also supplied with the second clock, for delaying the phase of the supplied second clock so as to coincide with a phase intermediate the forward clock and the back clock, and for supplying the delayed clock of the second clock to the respectively corresponding controlled circuits as local clock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.