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| PartNumber | SL28647BLCT | SL28647BLC | SL28647CLC |
| Description | Clock Generators & Support Products Montevina | IC CLOCK CK505 DIFF PAIR 72QFN | IC CLOCK CK505 DIFF PAIR 72QFN |
| Manufacturer | Silicon Laboratories | Silicon Labs | Silicon Labs |
| Product Category | Clock Generators & Support Products | Clock/Timing - Application Specific | Clock/Timing - Application Specific |
| RoHS | Y | - | - |
| Packaging | Reel | Bulk | Bulk |
| Brand | Silicon Labs | - | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | Clock Generators | - | - |
| Factory Pack Quantity | 2000 | - | - |
| Subcategory | Clock & Timer ICs | - | - |
| Unit Weight | 0.001764 oz | - | - |
| Series | - | - | - |
| Package Case | - | 72-VFQFN Exposed Pad | 72-VFQFN Exposed Pad |
| Operating Temperature | - | 0°C ~ 85°C | 0°C ~ 85°C |
| Mounting Type | - | Surface Mount | Surface Mount |
| Voltage Supply | - | 3.135 V ~ 3.465 V | 3.135 V ~ 3.465 V |
| Supplier Device Package | - | 72-QFN-EP (10x10) | 72-QFN (10x10) |
| PLL | - | Yes | Yes |
| Main Purpose | - | Intel CPU Servers | Intel CPU Servers |
| Input | - | Crystal | Crystal |
| Output | - | HCSL, LVCMOS | HCSL, LVCMOS |
| Number of Circuits | - | 1 | 1 |
| Ratio InputOutput | - | 1899/12/30 1:22:00 | 1899/12/30 1:22:00 |
| Differential InputOutput | - | No/Yes | No/Yes |
| Frequency Max | - | 400MHz | 400MHz |