Abstract
The highest bit-density 64-Mb NOR flash memory with dual-operation function of 44 mm/sup 2/ was developed by introducing negative-gate channel-erase NOR flash memory cell technology, 0.16-/spl mu/m CMOS flash memory process technology, and four-bank hierarchical word-line and bit-line architecture. The chip has flexible block redundancy for high yield, a fast accurate word-line voltage controller for a fast erasing time of 0.5 s, and an eight-word page-read access capability for high read performance of an effective access time of 30 ns at a wide supply voltage range of 2.3-3.6 V.
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