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Clock generation and distribution for the 130-nm Itanium® 2 processor with 6-MB on-die L3 cache

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3 Author(s)
Simon Tam ; Intel Corp., Santa Clara, CA, USA ; Limaye, R.D. ; Desai, U.N.

The clock generation and distribution system for the 130-nm Itanium 2 processor operates at 1.5 GHz with a skew of 24 ps. The Itanium 2 processor features 6 MB of on-die L3 cache and has a die size of 374 mm2. Fuse-based clock de-skew enables post-silicon clock optimization to gain higher frequency. This paper describes the clock generation, global clock distribution, local clocking, and the clock skew optimization feature.

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:39 ,  Issue: 4 )