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| PartNumber | NB4N121KMNG | NB4N121KMNGEVB | NB4N121K |
| Description | Clock Buffer UTL TSMC 1:21 FANOUT HCSL | Clock & Timer Development Tools TSMC HCSL 1:21 FANOUT BUF | |
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | Clock Buffer | Clock & Timer Development Tools | IC Chips |
| RoHS | Y | - | - |
| Series | NB4N121K | - | NB4N121K |
| Number of Outputs | 42 Output | - | 42 Output |
| Maximum Input Frequency | 400 MHz | - | 400 MHz |
| Propagation Delay Max | 0.95 ns | - | - |
| Supply Voltage Max | 3.6 V | - | - |
| Supply Voltage Min | 3 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - 40 C |
| Maximum Operating Temperature | + 70 C | - | + 70 C |
| Mounting Style | SMD/SMT | - | SMD/SMT |
| Package / Case | QFN-52 EP | - | - |
| Packaging | Tray | Bulk | Tray Alternate Packaging |
| Height | 1 mm | - | - |
| Length | 8 mm | - | - |
| Width | 8 mm | - | - |
| Brand | ON Semiconductor | ON Semiconductor | - |
| Product Type | Clock Buffer | Clock & Timer Development Tools | - |
| Factory Pack Quantity | 260 | 1 | - |
| Subcategory | Clock & Timer ICs | Development Tools | - |
| Unit Weight | 0.000843 oz | - | - |
| Type | - | - | Fanout Buffer (Distribution) |
| Package Case | - | - | QFN-52 EP |
| Operating Temperature | - | - | -40°C ~ 70°C |
| Mounting Type | - | - | Surface Mount |
| Voltage Supply | - | - | 3 V ~ 3.6 V |
| Supplier Device Package | - | - | 52-QFN (8x8) |
| Input | - | - | CML, LVCMOS, LVDS, LVPECL, LVTTL |
| Output | - | - | HCSL |
| Number of Circuits | - | - | 1 |
| Ratio InputOutput | - | - | 1899/12/30 1:21:00 |
| Differential InputOutput | - | - | Yes/Yes |
| Frequency Max | - | - | 400MHz |
| Supply Voltage Max | - | - | 3.6 V |
| Supply Voltage Min | - | - | 3 V |
| Propagation Delay Max | - | - | 0.95 ns |