256K x 36, 512K x 18 3.3V Synchronous ZBT™ SRAMs.
IDT
IDT71V65903 - 3.3V Synchronous ZBT SRAMs
256K x 36, 512K x 18 3.3V Synchronous ZBT™ SRAMs 3.3V I/O, Burst Counter Flow-Through Outputs IDT71V65703 IDT71V65903 Features x 256K x 36, 512K x 1.