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| Part Number | CY2544FI | CY2544QFI | CY2544FIT | CY2545FI | CY2544I | CY2546FI | CY2544FC |
|---|---|---|---|---|---|---|---|
| Manufacturer | Infineon Technologies | Infineon Technologies | Infineon Technologies | Rochester Electronics, LLC | Rochester Electronics, LLC | Rochester Electronics, LLC | Infineon Technologies |
| Product Status | Obsolete | Active | Obsolete | Active | Active | Active | Obsolete |
| Type | Fanout Distribution, Fractional N Synthesizer, Multiplexer, Spread Spectrum Clock Generator | Clock Generator | Fanout Distribution, Fractional N Synthesizer, Multiplexer, Spread Spectrum Clock Generator | - | - | - | Fanout Distribution, Fractional N Synthesizer, Multiplexer, Spread Spectrum Clock Generator |
| PLL | Yes with Bypass | Yes with Bypass | Yes with Bypass | - | - | - | Yes with Bypass |
| Input | LVCMOS, Crystal | LVCMOS, Crystal | LVCMOS, Crystal | - | - | - | LVCMOS, Crystal |
| Output | Clock | Clock | Clock | - | - | - | Clock |
| Number of Circuits | 1 | 4 | 1 | - | - | - | 1 |
| Ratio - Input:Output | 1:9 | 1:9 | 1:9 | - | - | - | 1:9 |
| Differential - Input:Output | No/No | No/No | No/No | - | - | - | No/No |
| Frequency - Max | 166MHz | 166MHz | 166MHz | - | - | - | 166MHz |
| Divider/Multiplier | Yes/No | Yes/No | Yes/No | - | - | - | Yes/No |
| Voltage - Supply | 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 (TA) | -40°C ~ 85°C | - | - | - | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | - | - | - | Surface Mount |
| Package / Case | 24-VFQFN Exposed Pad | 24-UFQFN Exposed Pad | 24-VFQFN Exposed Pad | - | - | - | 24-VFQFN Exposed Pad |
| Supplier Device Package | 24-QFN (4x4) | 24-QFN (4x4) | 24-QFN (4x4) | - | - | - | 24-QFN (4x4) |
