Renesas’ Timing product portfolio has been acquired by SiTime.
Datasheets, documentation, and sample orders remain available on Renesas.com through late 2026. For new designs, purchasing, support, and product inquiries, visit SiTime.com or send an email to [email protected]. Full transition to SiTime is expected by late 2026.
| CAD Model: | View CAD Model |
| Pkg. Type: | TSSOP |
| Pkg. Code: | PGG8 |
| Lead Count (#): | 8 |
| Pkg. Dimensions (mm): | 3.1 x 4.4 x 1.0 |
| Pitch (mm): | 0.65 |
| Moisture Sensitivity Level (MSL) | 1 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542.39.0090 |
| Lead Count (#) | 8 |
| Carrier Type | Tube |
| Moisture Sensitivity Level (MSL) | 1 |
| Qty. per Reel (#) | 0 |
| Qty. per Carrier (#) | 96 |
| Pb (Lead) Free | Yes |
| Pb Free Category | e3 Sn |
| Temp. Range (°C) | 0 to 70°C |
| App Jitter Compliance | PCIe Gen1, PCIe Gen2 |
| Architecture | Common |
| Core Voltage (V) | 3.3 |
| Diff. Output Signaling | LVDS |
| Diff. Outputs | 1 |
| Diff. Termination Resistors | 1 |
| Input Freq (MHz) | 24.5 - 34 |
| Input Type | Crystal |
| Inputs (#) | 1 |
| Length (mm) | 3.1 |
| MOQ | 96 |
| Output Banks (#) | 1 |
| Output Freq Range (MHz) | 100 - 100, 125 - 125 |
| Output Type | LVDS |
| Output Voltage (V) | 3.3 |
| Outputs (#) | 1 |
| PLL | Yes |
| Package Area (mm²) | 13.6 |
| Phase Jitter Typ RMS (ps) | 0.773 |
| Pitch (mm) | 0.65 |
| Pkg. Dimensions (mm) | 3.1 x 4.4 x 1.0 |
| Pkg. Type | TSSOP |
| Power Consumption Typ (mW) | 314 |
| Product Category | FemtoClock, Low Jitter Clocks (<700 fs RMS), PCI Express Clocks |
| Prog. Clock | No |
| Reference Output | No |
| Requires Terms and Conditions | Does not require acceptance of Terms and Conditions |
| Spread Spectrum | No |
| Supply Voltage (V) | 3.3 - 3.3 |
| Tape & Reel | No |
| Thickness (mm) | 1 |
| Width (mm) | 4.4 |
| Xtal Freq (MHz) | 25 - 25 |
The 844201-45 is a PCI Express® Clock Generator. The 844201-45 can synthesize 100MHz or 125MHz reference clock frequencies with a 25MHz crystal. The 844201-45 has excellent phase jitter performance and is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space.