Patent · US Expired

Dynamic semiconductor memory device and method for initializing a dynamic semiconductor memory device

US6175531A · kind A · utility

6Cited by

3References

19Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Martin Buck · Hersbruck, DE
Helmut Fischer · Calw, DE
Heinrich Hemmert · Hersbruck, DE
Bret Johnson · Folsom, US
Sebastian Kuhne · Radebeul, DE

Key dates

Filing date	Jun 30, 1999
Grant date	Jan 16, 2001
Priority date	—
Expiry date	Jun 30, 2019

Classification

Technology area (CPC G)Physics
CPC primaryG11C7/22
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A dynamic semiconductor memory device of the random access type having an initialization circuit which controls the switch-on operation of the semiconductor memory device and of its circuit components. The initialization circuit supplies a supply voltage stable signal once the supply voltage has been stabilized after the switching-on of the semiconductor memory device. The initialization circuit has an advance detector circuit, which detects a predetermined level state of an externally applied clock control signal chronologically before the supply voltage stable signal is generated and, as a reaction to this, supplies a first enable signal for unlatching the control circuit provided for the proper operation of the semiconductor memory device.

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