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| PartNumber | 72V821L20TF | 72V821L20PF8 | 72V821L20PF |
| Description | IC FIFO SYNC 512X9X2 20NS 64QFP | FIFO 3.3 V DUAL 4K X 9 | FIFO 3.3 V DUAL 4K X 9 |
| Manufacturer | IDT, Integrated Device Technology Inc | IDT, Integrated Device Technology Inc | IDT, Integrated Device Technology Inc |
| Product Category | Logic - FIFOs Memory | Logic - FIFOs Memory | Logic - FIFOs Memory |
| Series | 72V | 72V | 72V |
| Packaging | Tray | Tape & Reel (TR) Alternate Packaging | Tray Alternate Packaging |
| Package Case | 64-LQFP | 64-LQFP | 64-LQFP |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Function | Synchronous | Synchronous | Synchronous |
| Voltage Supply | 3 V ~ 3.6 V | 3 V ~ 3.6 V | 3 V ~ 3.6 V |
| Supplier Device Package | 64-TQFP (10x10) | 64-TQFP (14x14) | 64-TQFP (14x14) |
| Memory Size | 18K (1K x 9 x 2) | 18K (1K x 9 x 2) | 18K (1K x 9 x 2) |
| Data Rate | 50MHz | 50MHz | 50MHz |
| Access Time | 12ns | 12ns | 12ns |
| Current Supply Max | 40mA | 40mA | 40mA |
| Bus Directional | Bi-Directional | Bi-Directional | Bi-Directional |
| Expansion Type | Depth, Width | Depth, Width | Depth, Width |
| Programmable Flags Support | Yes | Yes | Yes |
| Retransmit Capability | No | No | No |
| FWFT Support | No | No | No |