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: | NLG64 |
| Lead Count (#): | 64 |
| Pkg. Dimensions (mm): | 9.0 x 9.0 x 0.9 |
| Pitch (mm): | 0.5 |
| Moisture Sensitivity Level (MSL) | 3 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542.39.0090 |
| Lead Count (#) | 64 |
| Carrier Type | Reel |
| Moisture Sensitivity Level (MSL) | 3 |
| Qty. per Reel (#) | 3000 |
| Qty. per Carrier (#) | 0 |
| Pb (Lead) Free | Yes |
| Pb Free Category | e3 Sn |
| Temp. Range (°C) | 0 to 70°C |
| Accepts Spread Spec Input | Yes |
| Advanced Features | HW PLL mode control, Multiple SMBus addresses |
| App Jitter Compliance | PCIe Gen1, PCIe Gen2, PCIe Gen3, QPI |
| Architecture | Common, SRNS |
| C-C Jitter Max P-P (ps) | 50 |
| C-C Jitter Typ P-P (ps) | 20 |
| Core Voltage (V) | 3.3 |
| Diff. Input Signaling | HCSL |
| Diff. Inputs | 2 |
| Diff. Output Signaling | HCSL |
| Diff. Outputs | 15 |
| Diff. Termination Resistors | 60 |
| Feedback Input | No |
| Input Freq (MHz) | 166 |
| Input Type | HCSL |
| Inputs (#) | 2 |
| Length (mm) | 9 |
| MOQ | 3000 |
| Output Banks (#) | 1 |
| Output Freq Range (MHz) | 33.33 - 167 |
| Output Skew (ps) | 150 |
| Output Type | HCSL |
| Output Voltage (V) | 0.8 |
| Outputs (#) | 15 |
| PLL | Yes |
| Package Area (mm²) | 81 |
| Phase Jitter Max RMS (ps) | 1 |
| Phase Jitter Typ RMS (ps) | 0.6 |
| Pitch (mm) | 0.5 |
| Pkg. Dimensions (mm) | 9.0 x 9.0 x 0.9 |
| Pkg. Type | VFQFPN |
| Power Consumption Typ (mW) | 1089 |
| Product Category | PCI Express Clocks |
| Prog. Clock | No |
| Prog. Interface | SMBUS |
| Reel Size (in) | 13 |
| 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 | Yes |
| Thickness (mm) | 0.9 |
| Width (mm) | 9 |
The 9EX21531 provides 15 output clocks for PCIe Gen1/ 2/3 applications. The 9EX21531 has 4 selectable SMBus addresses, and dedicated CKPWRGD/PD# and VDDA pins for easy board design. A differential clock from a CK410B+ or CK420BQ main clock generator, such as the 932S421, drives the 9EX21531. In fanout mode, the 9EX21531 provides outputs up to 166MHz.