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: | VFQFPN |
| Pkg. Code: | NLG72 |
| Lead Count (#): | 72 |
| Pkg. Dimensions (mm): | 10.0 x 10.0 x 1.0 |
| Pitch (mm): | 0.5 |
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542.39.0090 |
| Lead Count (#) | 72 |
| Carrier Type | Tray |
| Moisture Sensitivity Level (MSL) | 3 |
| Qty. per Reel (#) | 0 |
| Qty. per Carrier (#) | 168 |
| Pb (Lead) Free | Yes |
| Pb Free Category | e3 Sn |
| Temp. Range (°C) | 0 to 70°C |
| Assembly Location | CHINA |
| Wafer Fab Location | TAIWAN, USA |
| Accepts Spread Spec Input | Yes |
| Advanced Features | Multiple SMBus addresses, HW PLL mode control, Adjustable Feedback |
| App Jitter Compliance | PCIe Gen1, PCIe Gen2, PCIe Gen3, QPI |
| C-C Jitter Max P-P (ps) | 50 |
| Chipset Manufacturer | Intel |
| Chipset Name | C600, Patsburg, Wellsburg, Lewisburg |
| Clock Spec. | DB1900Z v1.6 |
| Core Voltage (V) | 3.3 |
| Diff. Input Signaling | HCSL |
| Diff. Inputs | 1 |
| Diff. Output Signaling | HCSL |
| Diff. Outputs | 19 |
| Diff. Termination Resistors | 80 |
| Feedback Input | Yes |
| Function | Buffer |
| Input Freq (MHz) | 33 - 150 |
| Input Type | HCSL |
| Inputs (#) | 1 |
| Length (mm) | 10 |
| MOQ | 168 |
| Output Banks (#) | 1 |
| Output Enable (OE) Pins | 8 |
| Output Freq Range (MHz) | 33 - 150 |
| Output Skew (ps) | 50 |
| Output Type | HCSL |
| Output Voltage (V) | 0.7 |
| Outputs (#) | 19 |
| Package Area (mm²) | 100 |
| Pitch (mm) | 0.5 |
| Pkg. Dimensions (mm) | 10.0 x 10.0 x 1.0 |
| Pkg. Type | VFQFPN |
| Power Consumption Typ (mW) | 1350 |
| Product Category | Processor Clock Buffers, Zero Delay Buffers |
| Prog. Clock | Yes |
| Prog. Interface | SMBUS |
| Reference Output | No |
| Requires Terms and Conditions | Does not require acceptance of Terms and Conditions |
| Spread Spectrum | Yes |
| Supply Voltage (V) | 3.3 - 3.3 |
| Tape & Reel | No |
| Thickness (mm) | 1 |
| Width (mm) | 10 |
The 9ZX21901B is a version of the Intel DB1900Z differential buffer with an adjustable external feedback path allowing the user to eliminate trace delays from their design. It is suitable for PCIe Gen 3 or QPI applications. The part is backward compatible with PCIe Gen 1 and Gen 2. And, the device maintains low drift for critical QPI applications. In bypass mode, the 9ZX21901 can provide outputs up to 400MHz. See the 9ZX21901C for a fixed external feedback path.