Nonvolatile semiconductor memory system

Details Nonvolatile semiconductor memory system Nonvolatile semiconductor memory system

1991-01-10

1993-07-20

Clawson, Jr., Joseph E.

Static information storage and retrieval

Addressing

Plural blocks or banks

36518902, 36523008, G11C 800

Patent

active

052299724

ABSTRACT:
An EPROM integrated circuit includes a plurality of banks. When a data write operation is to be performed for this EEPROM integrated circuit, a bank which is used once is not used again, but the operation is constantly performed for new banks. In order to select a bank, a write number storage area is provided in the EPROM integrated circuit, and the contents of the write number storage area are updated by a write number updating circuit each time the write operation is performed for a new bank.

REFERENCES:
patent: 4682287 (1987-07-01), Mizuno et al.
patent: 4754435 (1988-06-01), Takamatsu
European Search Report, EP 91 10 0033.
Patent Abstracts of Japan, No. JP59016187, May 17, 1984.
Patent Abstracts of Japan, No. JP63181190, Dec. 2, 1988.

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