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Programming antifuses in Crosspoint's FPGA

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2 Author(s)
Mafple, D. ; Crosspoint Solutions Inc., Santa Clara, CA, USA ; Cooke, L.

This paper describes how Crosspoint programs antifuses in its fine grain architecture. It compares the programming circuits used by Crosspoint to the circuits used by Actel and Quick-logic. Every antifuse in Crosspoint's FPGA can be uniquely programmed using a three dimensional addressing scheme to independently drive each electrode of the antifuse. The circuitry supports 10 V programming and 13.5 mA programming current to any target antifuse. Although the programming overhead is high, the antifuses are programmed to an average 50 Ω resistance, thus providing for high performance operation of the FPGA

Published in:

Custom Integrated Circuits Conference, 1994., Proceedings of the IEEE 1994

Date of Conference:

1-4 May 1994