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| Part Number | DSC557-0334FI1T | DSC557-0344FI1T | DSC557-0334SI1T | DSC557-0333FI1T | DSC557-0334FI1 | 
|---|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | 
| Product Status | Active | Active | Active | Active | Active | 
| PLL | Yes | Yes | Yes | Yes | Yes | 
| Main Purpose | PCI Express (PCIe) | PCI Express (PCIe) | PCI Express (PCIe) | PCI Express (PCIe) | PCI Express (PCIe) | 
| Input | - | - | - | - | - | 
| Output | HCSL, LVDS | HCSL | HCSL, LVDS | HCSL, LVCMOS, LVDS | HCSL, LVDS | 
| Number of Circuits | 1 | 1 | 1 | 1 | 1 | 
| Ratio - Input:Output | 0:2 | 0:2 | 0:2 | 1:2 | 0:2 | 
| Differential - Input:Output | No/Yes | No/Yes | No/Yes | No/Yes | No/Yes | 
| Frequency - Max | 100MHz | 100MHz | 100MHz | 100MHz | 100MHz | 
| Voltage - Supply | 2.25V ~ 3.6V | 2.25V ~ 3.6V | 2.25V ~ 3.6V | 2.25V ~ 3.6V | 2.25V ~ 3.6V | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | 
| Package / Case | 14-VFQFN Exposed Pad | 14-VFQFN Exposed Pad | 14-VFQFN Exposed Pad | 14-VFQFN Exposed Pad | 14-VFQFN Exposed Pad | 
| Supplier Device Package | - | - | - | 14-QFN (2.5x3.2) | - |