The ISSI IS61LF/VF25636A and IS61LF/VF51218A are high-speed, low-power synchronous static RAMs designed to provide burstable, high-performance memory for communication and networking applications. The IS61LF/ VF25636A is organized as 262,144 words by 36 bits. The IS61LF/VF51218A is organized as 524,288 words by 18 bits. Fabricated with ISSI's advanced CMOS technology, the device integrates a 2-bit burst counter, high-speed SRAM core, and high-drive capability outputs into a single monolithic circuit. All synchronous inputs pass through registers controlled by a positive-edge-triggered single clock input.