The IDT72801 is equivalent to two IDT72201 256 x 9 FIFOs The IDT72811 is equivalent to two IDT72211 512 x 9 FIFOs The IDT72821 is equivalent to two IDT72221 1,024 x 9 FIFOs The IDT72831 is equivalent to two IDT72231 2,048 x 9 FIFOs The IDT72841 is equivalent to two IDT72241 4,096 x 9 FIFOs The IDT72851 is equivalent to two IDT72251 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