fusible link

A Dictionary of Computing | 2004 | 686 words | Copyright

fusible link (fuse link) A physical link providing electric continuity across an individual cell in the memory array of a PROM. With this link intact the cell,when interrogated, will display a known logic state. During programming this link can be destroyed, forcing the cell to take on the complementary logic state; this process is irreversible. Fusible links are used in a similar manner in field-programmable logic arrays (see PLA). A fusible link is sometimes incorporated in a PROM or PLA to ensure that the data cannot be changed after being programmed. A similar technique is employed in some printer consumable items (e.g. toner cartridges) to ensure that they are not re-used.

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JOHN DAINTITH. "fusible link." A Dictionary of Computing. 2004. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>.

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