| Part Number | NB4N121KMNR2G | NB3N121KMNR2G | 
|---|---|---|
| Manufacturer | onsemi | onsemi | 
| Category | Clock/Timing - Clock Buffers, Drivers | Clock/Timing - Clock Buffers, Drivers | 
| 
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| Product Status | Active | Active | 
| Type | Fanout Buffer (Distribution) | Fanout Buffer (Distribution), Data | 
| Number of Circuits | 1 | 1 | 
| Ratio - Input:Output | 1:21 | 1:21 | 
| Differential - Input:Output | Yes/Yes | Yes/Yes | 
| Input | CML, LVCMOS, LVDS, LVPECL, LVTTL | HCSL, LVCMOS, LVDS, LVPECL, LVTTL | 
| Output | HCSL | HCSL, LVDS | 
| Frequency - Max | 400 MHz | 400 MHz | 
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 3.6V | 
| Operating Temperature | -40°C ~ 70°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 52-VFQFN Exposed Pad | 52-VFQFN Exposed Pad | 
| Supplier Device Package | 52-QFN (8x8) | 52-QFN (8x8) |