| Part Number | LTC6954IUFF-3 | LTC6954IUFF-4 | 
|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | 
| Category | Clock/Timing - Clock Buffers, Drivers | Clock/Timing - Clock Buffers, Drivers | 
| 
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| Product Status | Obsolete | Obsolete | 
| Type | Fanout Buffer (Distribution), Divider | Fanout Buffer (Distribution), Divider | 
| Number of Circuits | 1 | 1 | 
| Ratio - Input:Output | 1:3 | 1:3 | 
| Differential - Input:Output | Yes/Yes | Yes/Yes | 
| Input | LVCMOS, LVDS, LVPECL | LVCMOS, LVDS, LVPECL | 
| Output | LVCMOS, LVDS, LVPECL | LVCMOS, LVDS | 
| Frequency - Max | 1.4 GHz | 1.4 GHz | 
| Voltage - Supply | 3.15V ~ 3.45V | 3.15V ~ 3.45V | 
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 36-WFQFN Exposed Pad | 36-WFQFN Exposed Pad | 
| Supplier Device Package | 36-QFN (4x7) | 36-QFN (4x7) |