CMOS dynamic random access memory
US4780850A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1987 |
| Grant date | Oct 25, 1988 |
| Priority date | — |
| Expiry date | Nov 2, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/4094
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A dynamic random access memory comprises N channel sense amplifiers, P channel sense amplifiers and an equalizing MOSFET each provided for each of bit line pairs. The N channel sense amplifiers and the P channel sense amplifiers are operated by sense amplifier driving signals. In each of the N channel sense amplifiers, an MOSFET is connected between one of bit lines and an interconnection for transmitting a sense amplifier driving signal. In addition, a precharge potential generating circuit for generating a potential of (1/2)V.sub.CC is connected to the interconnection for transmitting the sense amplifier driving signal through a MOSFET. The bit line pairs are equalized by the equalizing MOSFET. Then, in each of the N channel sense amplifiers, the above described interconnection and one of the bit lines are connected to each other, and the above described interconnection and the precharge potential generating circuit are connected to each other. Therefore, the potentials on the bit line pairs and the above described interconnection are held at (1/2)V.sub.CC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.