Decoupled 4T dynamic CAM suitable for high density storage

A new four-transistor dynamic CAM (DCAM) is introduced. The DCAM design addresses the inherent data retention problem by proposing a modified sensing scheme. The results indicate over an order of magnitude improvement in data retention time. In addition, the DCAM structure realises a decoupled match-line structure, which enables high density configurations not possible from previous 4T CAM approaches.