Patent · US Expired

Circuit and method for controlling an access to an integrated memory

US7085185B2 · kind B2 · utility

3Cited by

7References

14Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Stephan Schröder · Birkenfeld, DE
Aurel von Campenhausen · Munich, DE
Manfred Proll · Dorfen, DE
Koen Van der Zanden · Leuven, BE

Key dates

Filing date	Jul 16, 2004
Grant date	Aug 1, 2006
Priority date	—
Expiry date	Dec 1, 2024

Classification

Technology area (CPC G)Physics
CPC primaryG11C11/4096
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A circuit for controlling an access to an integrated memory includes a command decoder for receiving at least one external command for an access to the memory. An access controller is connected to the command decoder for receiving internal command signals, which are output by the command decoder. In the course of a memory access, the command decoder outputs a precharge command signal for precharging a row of the memory cell array of the integrated memory. A control circuit, which can determine a temperature of the memory, is designed to temporally variably influence the transmission of the precharge command signal of the command decoder to the access controller in a manner dependent on the temperature of the memory. The write recovery time tWR can be retained even for higher operating frequencies of the memory.

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