Propagating FIFO storage device
US4805139A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 22, 1987 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | Oct 22, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A propagating first-in, first-out (FIFO) storage device is driven by a two-phase non-overlapping clock and includes a plurality of storage cells (C1, . . . C4) and a plurality of tracking bit cell circuits (T1, . . . T4). Each of the storage cells includes first pass gate transistors (G1, . . . G8), first inverters (INV1, . . . INV8), second pass gate transistors (G9, . . . G16), and second inverters (INV9, . . . INV16). The first pass gate transistors are responsive to a control signal from the tracking circuit for loading data input signals into the first inverter means. The second pass gate transistors are responsive to a first phase of the clock for shifting the data input signals into the second inverters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.