Temel Kavramlar
This work presents an energy-efficient 3T1R1C capacitive-RRAM content addressable memory (CAM) that uses RRAM as both storage and comparison element, eliminating the need for direct current paths and enabling low-power parallel search operations.
Özet
The article introduces an energy-efficient 3T1R1C capacitive-RRAM content addressable memory (CAM) design. The key features are:
- RRAM is used as both the storage element and the switching element for the capacitive divider, enabling efficient content-based searching.
- The use of a physical capacitor and the capacitive divider structure eliminates the need for direct current paths during search operations, reducing power consumption.
- The CAM cell supports both content-addressable read (CAR) and address-addressable read (AAR) operations.
- A 64x64 CAM array was implemented in 0.18um technology, operating at an internal clock frequency of 875MHz.
- The worst-case average energy consumption is reported as 1.71fJ/bit-search for data match and 4.69fJ/bit-search for data miss.
- The design leverages the charge domain searching mechanism, making it suitable for power-hungry applications like data centers.
- The article also discusses the layout, timing, energy, and corner analysis of the proposed CAM design.
İstatistikler
The worst average energy for data match is reported to be 1.71fJ/bit-search.
The worst average energy for data miss is found at 4.69fJ/bit-search.