Static information storage and retrieval – Read only systems
Patent
1997-12-03
2000-07-04
Phan, Trong
Static information storage and retrieval
Read only systems
365 94, 365104, 365203, 36518517, 36518525, G11C 1700
Patent
active
06084793&
ABSTRACT:
A compact read-only memory (ROM) system with low current consumption and having a plurality of data lines and a word line, includes a first ROM cell having a gate connected to the word line and a source-drain path connected between a first data line and a second data line, a second ROM cell having a gate connected to the word line and a source-drain path connected between the second data line and a third data line, a third ROM cell having a gate connected to the word line and a source-drain path connected between the third data line and a fourth data line, and a sense amplifier for amplifying data from one of the ROM cells. The first data line is connected to a voltage source and the second data line is connected to the sense amplifier when data from the first ROM cell is read, and the third and fourth data lines are charged to a predetermined voltage.
REFERENCES:
patent: 5268861 (1993-12-01), Hotta
patent: 5394371 (1995-02-01), Hotta
patent: 5650959 (1997-07-01), Hayashi et al.
patent: 5757709 (1998-05-01), Suminaga et al.
patent: 5793666 (1998-08-01), Yamazaki
patent: 5825683 (1998-10-01), Chang
patent: 5886937 (1999-03-01), Jang
Japanese Office Action dated Jun. 23, 1999, with partial translation.
NEC Corporation
Phan Trong
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