IS61DDP2B41M18C/C1/C2 IS61DDP2B451236C/C1/C2 1Mx18.
IS61DDP2B451236C2 - 18Mb DDR-IIP CIO SYNCHRONOUS SRAM
IS61DDP2B451236C - 18Mb DDR-IIP CIO SYNCHRONOUS SRAM
IS61DDP2B451236C1 - 18Mb DDR-IIP CIO SYNCHRONOUS SRAM