Nonvolatile static memory device utilizing separate power supplies
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 24, 1991
Issued Date -
N/A
app pub date -
Jul 3, 1990
filing date -
Nov 13, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A semiconductor nonvolatile memory device includes a static type RAM constituted by a flip-flop circuit having a pair of loads, each load being supplied by separate power sources. An electrically erasable programmable ROM is constituted by a nonvolatile memory transistor operatively connected to the flip-flop circuit. A control circuit controls the supply timing of each of the separate power sources when data stored in the nonvolatile memory transistor is recalled to the flip-flop circuit. In the recall, the supply timing of each of the separate power sources is determined in such a way that the flip-flop circuit is set so as to invert from one state to the other corresponding to the ON/OFF state of the nonvolatile memory transistor.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully