The IDT72V801 is equivalent to two IDT72V201 256 x 9 FIFOs The IDT72V811 is equivalent to two IDT72V211 512 x 9 FIFOs The IDT72V821 is equivalent to two IDT72V221 1,024 x 9 FIFOs The IDT72V831 is equivalent to two IDT72V231 2,048 x 9 FIFOs The IDT72V841 is equivalent to two IDT72V241 4,096 x 9 FIFOs The IDT72V851 is equivalent to two IDT72V251 8,192 x 9 FIFOs Offers optimal combination of large capacity, high speed, design flexibility and small footprint Ideal for prioritization, bidirectional, and width expansion applications