Memory card having block erasure type memory units which are use

Details Memory card having block erasure type memory units which are use Memory card having block erasure type memory units which are use

1996-10-15

1999-03-16

Lane, Jack A.

Static information storage and retrieval

Read/write circuit

Bad bit

365218, 235492, 371 102, G11C 2900

Patent

active

058838422

ABSTRACT:
A memory card with block erasure-type nonvolatile memory units is connected to a host apparatus by an I/O interface. The memory includes a plurality of block-erasure type nonvolatile memory units, a control circuit for inputting/outputting data to the host apparatus and managing nonvolatile memory units and address data to the memory, and a programmable logic device which converts address data to select respective erasure blocks of nonvolatile memories in accordance with a program. The control circuit programs the programmable logic device so that the address data for selecting defective erasure blocks is converted to address data for selecting other usable erasure blocks.

REFERENCES:
patent: 5524231 (1996-06-01), Brown
patent: 5691945 (1997-11-01), Liou et al.

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