A 44-mm2 four-bank eight-word page-read 64-Mb flash memory with flexible block redundancy and fast accurate word-line voltage controller

被引:2
|
作者
Tanzawa, T [1 ]
Umezawa, A
Taura, T
Shiga, H
Hara, T
Takano, Y
Miyaba, T
Tokiwa, N
Watanabe, K
Watanabe, H
Masuda, K
Naruke, K
Kato, H
Atsumi, S
机构
[1] Toshiba Co Ltd, Yokohama, Kanagawa 2478585, Japan
[2] Toshiba Microelect Corp, Yokohama, Kanagawa 2478585, Japan
关键词
0.16 mu m; 64; Mb; dual operation; flash memories; page read; redundancy; voltage controller;
D O I
10.1109/JSSC.2002.802356
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The highest bit-density 64-Mb NOR flash memory with dual-operation function of 44 mm(2) was developed by introducing negative-gate channel-erase NOR flash memory cell technology, 0.16-mum 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.
引用
收藏
页码:1485 / 1492
页数:8
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