Patent · US Expired

Backwards-compatible memory module

US7221617B2 · kind B2 · utility

7Cited by

4References

37Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Bjorn Flach · Munich, DE
Monica De Castro Martins · Munich, DE
Wolfgang Ruf · Friedberg, DE
Martin Schnell · Berlin, DE

Key dates

Filing date	May 12, 2005
Grant date	May 22, 2007
Priority date	—
Expiry date	Jun 27, 2025

Classification

Technology area (CPC G)Physics
CPC primaryG11C2207/107
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A backwards-compatible memory module is disclosed. According to one aspect, a memory module comprises addressable memory cells organized in organization units having a predetermined number of memory cells, a read/write control device clocked by a first clock signal, a plurality of prefetch registers for initially storing data read from the memory cells wherein the register size corresponds to the predetermined number. In a first operating mode, a switching device clocked by a second clock signal successively couples the prefetch registers to data input/output terminals. The number of data input/output terminals corresponds to the predetermined number. In a second operating mode, the switching device is controlled by at least one address signal and couples at least one of the prefetch registers to the data input/output terminals.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.