1 GHz leading zero anticipator using independent sign-bit determination logic Conference Paper uri icon

abstract

  • The architecture and design methodology of a leading zero anticipator (LZA) using built-in sign-bit determination logic are described. The LZA was implemented in the 1 GHz floating point unit using a 1.8 V, 0.12/0.15 (n/p)m L eff . IBM CMOS technology. The design shows 730 ps of latency and operates at 1 GHz with 5 levels of delayed reset dynamic circuit logic. With the LZA the sign-bit is determined in 446 ps with an area overhead of 8%, whereas a conventional adder generates the sign-bit in 770 ps.

name of conference

  • 2000 Symposium on VLSI Circuits. Digest of Technical Papers (Cat. No.00CH37103)

published proceedings

  • 2000 SYMPOSIUM ON VLSI CIRCUITS, DIGEST OF TECHNICAL PAPERS

author list (cited authors)

  • Lee, K. T., & Nowka, K. J.

citation count

  • 15

complete list of authors

  • Lee, KT||Nowka, KJ

publication date

  • January 2000