Low-supply-noise low-power embedded modular SRAM

A low-noise, low-power embedded modular SRAM is described. A 512×15 configuration at 3.3 V generates a maximum of 8.2 mA/ns dI/dt and consumes 0.24 mW/MHz, the lowest power dissipation ever reported for a modular embedded memory. Results are achieved using a pulsed divided word line architecture, with internal cascaded clocks, weak static sensing, low-noise buffers and flip-flops and low-noise low-power decoding techniques. Alternatives in the core cell, sense amplifier and read/write architecture designs are discussed. Circuit details, as well as experimental and simulation results, are presented