A low power charge sharing ROM using dummy bit lines

This paper proposes a shared-capacitor charge-sharing ROM (SCCS-ROM). The SCCS-ROM reduces the swing voltage using the charge-sharing technique of the charge-sharing ROM (CSROM) [4]. Although the CS-ROM needs three small capacitors per output, the SCCS-ROM shares the capacitors so that it needs only three capacitors. The SCCS-ROM implements the capacitors using dummy bit lines. This not only increases noise immunity but also reduces power. The simulation results show that the SCCSROM reduces 8.4% power compared to the CS-ROM.

• Type: Conference
• Year: 2003
• Where: ISCAS
• Authors: Byung-Do Yang, Lee-Sup Kim
• Keywords: Capacitors, Charge-sharing Rom, ISCAS 2003, Shared-capacitor Charge-sharing Rom