Elaine Ou, California Institute of Technology
We describe the Lutonium, an asynchronous 8051 microcontroller designed for low Et2. In 0.18-µm CMOS, at nominal 1.8 V, we expect a performance of 0.5 nJ per instruction at 200 MIPS. At 0.5 V, we expect 4 MIPS and 40 J/instruction, corresponding to 25,000 MIPS/Watt. We describe the structure of a fine-grain pipeline optimized for Et2 efficiency, some of the peripherals implementation, and the advantages of an asynchronous implementation of a deep-sleep mechanism.
Citation:
Alain J. Martin, Mika Nyström, Karl Papadantonakis, Paul I. Pénzes, Piyush Prakash, Catherine G. Wong, Jonathan Chang, Kevin S. Ko, Benjamin Lee, Elaine Ou, James Pugh, Eino-Ville Talvala, James T. Tong, Ahmet Tura, "The Lutonium: A Sub-Nanojoule Asynchronous 8051 Microcontroller," async, pp.14, Ninth IEEE International Symposium on Asynchronous Circuits and Systems (ASYNC'03), 2003