Electrical computers and digital processing systems: memory – Storage accessing and control – Memory configuring
Patent
1996-12-20
1998-09-15
Swann, Tod R.
Electrical computers and digital processing systems: memory
Storage accessing and control
Memory configuring
711103, 36518509, 36518511, 36518513, 365218, 365195, G06F 1200
Patent
active
058095535
ABSTRACT:
Nonvolatile memory devices and methods include an array of nonvolatile memory cells which are arranged in a plurality of rows and a plurality of columns. A plurality of word lines are also included, a respective one of which is connected to the nonvolatile memory cells in a respective one of a plurality of columns. A plurality of lockable cells are also included. A respective one of the lockable cells is connected to a respective one of the plurality of word lines. Each of the lockable cells stores therein a first or a second binary value. The first binary value indicates that nonvolatile memory cells which are connected to the corresponding column of word lines cannot be erased or reprogrammed. The second binary value indicates that nonvolatile memory cells which are connected to the corresponding column of words lines can be erased or programmed.
REFERENCES:
patent: 5270967 (1993-12-01), Moazzami et al.
patent: 5274599 (1993-12-01), Ema
patent: 5513136 (1996-04-01), Fandrich et al.
patent: 5737258 (1998-07-01), Choi et al.
Choi Do-Chan
Son Jong-Chang
Namazi Mehdi
Samsung Electronics Co,. Ltd.
Swann Tod R.
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