Time-Domain Mixed-Signal Vector-By-Matrix Multiplier

Tech ID: 30440 / UC Case 2019-426-0

Brief Description

A time-domain mixed-signal VMM exploiting a modified configuration of 1 MOSFET-1 RRAM (1T-1R) array.

Background

Mobile devices require a dedicated processor to enable computationally intensive applications such as neuromorphic computing and signal procession. Vector-by-matrix multiplication (VMM) is currently the most prominent operation in these applications. Increased efficiency in VMM blocks can enhance the performance of resource-intensive computations.

Description

Researchers at the University of California, Santa Barbara have developed a time-domain mixed-signal VMM exploiting a modified configuration of 1 MOSFET-1 RRAM (1T-1R) array. In this approach, the inputs and outputs are encoded in digital domain as duration of the pulses while the weights are realized as programmable current sinks utilizing the modified 1T-1R blocks in the analog domain. This approach overcomes the energy inefficiency of the current approach; an effective compute precision of 8-bits is achievable, with an energy efficiency of ~25.5 TOps/J for VMM size=200.

Advantages


  • Increased energy efficiency
  • Achieves an effective compute precision of 8-bits

Applications


  • Mobile Devices
  • Mobile App Development 

Patent Status

Patent Pending

Contact

Learn About UC TechAlerts - Save Searches and receive new technology matches

Inventors

Other Information

Keywords

electronics, vector-by-matrix multiplication, mobile devices, energy efficiency, compute precision, indmicroelec

Categorized As