The PD4482161 is a 524,288-word by 16-bit, the PD4482181 is a 524,288-word by 18-bit, the PD4482321 is a 262,144-word by 32-bit and the PD4482361 is a 262,144-word by 36-bit synchronous static RAM fabricated with advanced CMOS technology using Full-CMOS six-transistor memory cell. The PD4482161, PD4482181, PD4482321 and PD4482361 integrate unique synchronous peripheral circuitry, 2-bit burst counter and output buffer as well as SRAM core. All input registers are controlled by a positive edge of the single clock input (CLK).