|Dimensions||1252μm x 1252μm|
|Power||22 mW @1.2V 100MHz|
This chip continues the tradition of the Moon series of small PULP chips that add various floating point operations to a cluster of 4 processors, and joins its sisters:
This chip is a four Phoebe is very similar to Selene and contains shared logarithmic number units. In this chip there are two shared LNUs:
Phoebe is very similar to Selene and contains shared logarithmic number units. In this chip there are two shared LNUs:
There are also various improvements with respect to the LNU used in Selene:
We have used a multi-VT approach to reduce leakage currents in this chip. 24% of the gates are Low VT (fast), 29% are Standard VT (normal) and 47% are High VT (slow).
This chip continues the tradition of naming these chips after mythological characters that have a connection to the moon. Phoebe was one of the Titans, she is the grandmother of Artemis (through Leto) and Hecate (through Asteria). In some texts the name is also used in place of Selene, completing the cycle.