| PartNumber | 810001DK-21LF | 810001DK-21LFT | 810001DKI-21LF |
| Description | Clock Generators & Support Products 1 LVCMOS OUT VCXO FEMTOCLOCK | Clock Generators & Support Products 1 LVCMOS OUT VCXO FEMTOCLOCK | Clock Generators & Support Products FemtoClock Dual VCXO Video PLL |
| Manufacturer | IDT (Integrated Device Technology) | IDT (Integrated Device Technology) | IDT |
| Product Category | Clock Generators & Support Products | Clock Generators & Support Products | Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers |
| RoHS | Y | Y | - |
| Series | 810001-21 | 810001-21 | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | VFQFPN-32 | VFQFPN-32 | - |
| Packaging | Tray | Reel | - |
| Height | 1 mm | 1 mm | - |
| Length | 5 mm | 5 mm | - |
| Width | 5 mm | 5 mm | - |
| Brand | IDT | IDT | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | Clock Generators | Clock Generators | - |
| Factory Pack Quantity | 490 | 2500 | - |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | - |
| Part # Aliases | 810001-21 ICS810001DK-21LF | 810001-21 ICS810001DK-21LFT | - |