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MRAM: A New Technology for the Future - NCCAVS - User Groups

MRAM: A New Technology for the Future - NCCAVS - User Groups

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SORT TEST FOR BL & DL DISTURB<br />

16<br />

10 1<br />

0<br />

1 0<br />

1<br />

COMPARE<br />

1? ?<br />

?<br />

1<br />

0<br />

1<br />

0<br />

1<br />

0<br />

?<br />

?<br />

?<br />

0<br />

1<br />

0<br />

1<br />

0<br />

1<br />

?<br />

?<br />

?<br />

Writing Checkerboard<br />

Writing Inverse checkerboard<br />

Bit counts = 9<br />

10 1<br />

0<br />

1 1<br />

1<br />

1? ?<br />

?<br />

1<br />

1<br />

1<br />

0<br />

1<br />

0<br />

?<br />

?<br />

?<br />

0<br />

0<br />

1<br />

1<br />

0<br />

1<br />

?<br />

?<br />

?<br />

Writing Checkerboard<br />

Writing Inverse checkerboard<br />

Bit counts = 5<br />

• Allow to check multiple disturbs and select on each site<br />

• Output is range of current at which select/Disturb is best<br />

<strong>NCCAVS</strong> March 17, 2004<br />

24<br />

Kamel Ounadjela (kno@cypress.com)

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