The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 1997
Filed:
Apr. 28, 1995
Kiyoshi Itano, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A nonvolatile semiconductor memory having a plurality of bit lines, a plurality of word lines, and a plurality of memory cells. Each of the memory cells is provided at each intersection of the bit lines and the word lines. The nonvolatile semiconductor memory includes a plurality of latch units provided for each corresponding bit line, and a control circuit. The control circuit is used to supply a control voltage and a control signal to the latch units, to operate the latch units as units for simultaneously biasing voltages applied to first electrodes of specified memory cells through the bit lines during a write operation, to simultaneously write data into the specified memory cells, and during a read operation, as units for simultaneously reading data out of the memory cells. This memory has an inexpensive simple structure for carrying out a simple programming operation at high speed.