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:
Nov. 19, 1996
Filed:
May. 25, 1995
Kazuhide Yoneya, Kawasaki, JP;
Hiroyuki Koinuma, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An output buffer generates '1' or '0' data based on control signals VA and VB transferred from memory cells through a DQ gate in a DRAM. The output buffer has first and second discharge circuits, and a first output transistor (PMOS Transistor). The second discharge circuit stops discharging the gate of the first output transistor after the voltage on the gate drops below the threshold voltage of the first output transistor and the first output transistor turns ON. After this time, only the first discharge circuit discharges the gate of the first output transistor. Further, the output buffer has first and second precharge circuits, and a second output transistor (NMOS transistor). The second precharge circuit stops charging the gate of the second output transistor after the voltage on the gate increases above the threshold voltage of the second output transistor and the second output transistor turns ON. After this time, only the second discharge circuit continues charging the gate of the second output transistor.