Analytical models for leakage power estimation of memory array structures

There is a growing need for accurate power models at the system level. Memory structures such as caches, Branch Target Buffers (BTBs), and register files occupy significant area in contemporary SoC designs and are the main contributors to system leakage power dissipation. Existing models for leakage power estimation in array structures typically use coefficients derived from elaborate SPICE simulations. However, these methodologies are not applicable to array designs in a newer technology, that require power estimates early in the design cycle. In this paper, we propose analytical models for array structures that are based only on high level design parameters. Assuming typical circuit implementation styles, we identify the transistors that contribute to the leakage power in each array sub-circuit and develop models as a function of the operation (read/write/idle) on the array and organizational parameters of the array. The developed models are validated by comparing their estimates ag...

• Type: Conference
• Year: 2004
• Where: CODES
• Authors: Mahesh Mamidipaka, Kamal S. Khouri, Nikil D. Dutt, Magdy S. Abadir
• Keywords: Array Designs, Array Structures, CODES 2004, Leakage Power, Software Engineering