IDT72V221 - 3.3 VOLT CMOS SyncFIFOTM 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 x 9 In this document: IDT72V221L10, IDT72V221L10J, IDT72V221L10JI, IDT72V221L10PF, IDT72V221L10PFI, IDT72V221L15, IDT72V221L15J, IDT72V221L15JI, IDT72V221L15PF, IDT72V221L15PFI, IDT72V221L20, IDT72V221L20J, IDT72V221L20JI, IDT72V221L20PF, IDT72V221L20PFI