IS61DDB44M18A IS61DDB42M36A 4Mx18, 2Mx36 72Mb DDR-.
IS61DDB42M36A - 72Mb DDR-II (Burst 4) CIO SYNCHRONOUS SRAM
IS61DDB44M18A IS61DDB42M36A 4Mx18, 2Mx36 72Mb DDR-II (Burst 4) CIO SYNCHRONOUS SRAM JANUARY 2015 FEATURES 2Mx36 and 4Mx18 configuration available..