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 | Reel |
| Moisture Sensitivity Level (MSL) | 1 |
| Qty. per Reel (#) | 2500 |
| Qty. per Carrier (#) | 0 |
| Pb (Lead) Free | Yes |
| Pb Free Category | e3 Sn |
| Temp. Range (°C) | -40 to 85°C |
| Core Voltage (V) | 2.5V, 3.3V |
| Feedback Input | No |
| Input Freq (MHz) | 23.2 - 30 |
| Input Type | Crystal |
| Inputs (#) | 1 |
| Length (mm) | 3.1 |
| MOQ | 2500 |
| Output Banks (#) | 1 |
| Output Freq Range (MHz) | 312.5 - 312.5, 625 - 625 |
| Output Type | LVPECL |
| Output Voltage (V) | 2.5V, 3.3V |
| Outputs (#) | 1 |
| Package Area (mm²) | 13.6 |
| Phase Jitter Typ RMS (ps) | 0.36 |
| Pitch (mm) | 0.65 |
| Pkg. Dimensions (mm) | 3.1 x 4.4 x 1.0 |
| Pkg. Type | TSSOP |
| Product Category | FemtoClock, Low Jitter Clocks (<700 fs RMS) |
| Prog. Clock | No |
| Reel Size (in) | 13 |
| Reference Output | No |
| Requires Terms and Conditions | Does not require acceptance of Terms and Conditions |
| Spread Spectrum | No |
| Tape & Reel | Yes |
| Thickness (mm) | 1 |
| Width (mm) | 4.4 |
The 843251I-12 is a 10Gb Ethernet clock generator that uses an 18pF parallel resonant crystal over the range of 23.2MHz - 30MHz. For Ethernet applications, a 25MHz crystal is used. The 843251I- 12 uses our 3rd generation low phase noise VCO technology, and can achieve <1ps rms phase jitter performance over the 1.875MHz - 20MHz integration range. The 843251I-12 is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space.