Patent · US Expired

Semiconductor device

US6295243A · kind A · utility

6Cited by
12References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 29, 1999
Grant dateSep 25, 2001
Priority date
Expiry dateNov 29, 2019

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C29/48
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A semiconductor integrated circuit includes a plurality of semiconductor memory devices implemented as DRAMs and an output selector on the same chip. External terminals of the chip include: terminals for inputting an inverted row address strobe signal /RAS to the respective semiconductor memory devices individually; and common terminals for inputting PRAUT, SLF, /CAS, ADR, /WE, /OE, CLK and TMODE signals to all the memory devices. The output signals TDQ, SRAS, MOUT and BITST of the semiconductor memory devices are controlled by the output selector, passed through a common test bus and then output from a common external terminal.

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