Three-value data storing semiconductor memory system
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United States of America Patent
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May 4, 1999
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N/A
app pub date -
Apr 16, 1997
filing date -
Apr 19, 1996
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Abstract
A three-value data storing semiconductor memory system, which has a plurality of memory cells capable of storing a three-value data item, comprises a first interface for receiving a plurality of binary data items of a first type, each including 2.sup.m binary data items (m=1, 2, 3, . . . ), from an external device, a control circuit for processing the binary data items of the first type input to the first interface, in units of 3k data items (k=1, 2, 3, ), converting each data unit consisting of 3k data items, to 4k binary data items of a third type, and outputting the binary data items of the third type in units of 2.sup.n binary data items (n=0, 1, 2, 3, . . . ) as binary data items of a second type via a second interface.
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