IS61QDPB42M18B/B1/B2 IS61QDPB41M36B/B1/B2 2Mx18, 1.
IS61QDPB42M18B - 36Mb QUADP (Burst 4) SYNCHRONOUS SRAM
IS61QDPB42M18B2 - 36Mb QUADP (Burst 4) SYNCHRONOUS SRAM
IS61QDPB42M18B1 - 36Mb QUADP (Burst 4) SYNCHRONOUS SRAM