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: | PGG16 |
| Lead Count (#): | 16 |
| Pkg. Dimensions (mm): | 5.0 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 (#) | 16 |
| 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) | -40 to 85°C |
| Additive Phase Jitter Typ RMS (fs) | 314 |
| Additive Phase Jitter Typ RMS (ps) | 0.314 |
| Core Voltage (V) | 3.3 |
| Function | Multiplexer |
| Input Freq (MHz) | 700 |
| Input Type | HCSL, LVDS, HSTL, LVPECL |
| Inputs (#) | 2 |
| Length (mm) | 5 |
| MOQ | 96 |
| Output Banks (#) | 1 |
| Output Freq Range (MHz) | 700 |
| Output Type | HCSL |
| Output Voltage (V) | 3.3 |
| Outputs (#) | 1 |
| Package Area (mm²) | 22 |
| Pitch (mm) | 0.65 |
| Pkg. Dimensions (mm) | 5.0 x 4.4 x 1.0 |
| Pkg. Type | TSSOP |
| Product Category | Clock Multiplexers |
| Requires Terms and Conditions | Does not require acceptance of Terms and Conditions |
| Tape & Reel | No |
| Thickness (mm) | 1 |
| Width (mm) | 4.4 |
The 831721I is a high-performance, differential HCSL clock/data multiplexer and fanout buffer. The device is designed for the multiplexing of high-frequency clock and data signals. The device has two differential, selectable clock/data inputs. The selected input signal is output at one differential HCSL output. Each input pair accepts HCSL, LVDS, and LVPECL levels. The 831721I is characterized to operate from a 3.3V power supply. Guaranteed input, output-to-output and part-to-part skew characteristics make the 831721I ideal for those clock and data distribution applications demanding well-defined performance and repeatability. The 831721I supports the clock multiplexing and distribution of PCI Express Generation 1, 2 and 3 clock signals.