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 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542.39.0090 |
| Moisture Sensitivity Level (MSL) | 3 |
| Pkg. Type | VFQFPN |
| Lead Count (#) | 72 |
| Pb (Lead) Free | Yes |
| Carrier Type | Tray |
| Accepts Spread Spec Input | Yes |
| Advanced Features | HiBW frequency translation capability |
| App Jitter Compliance | PCIe Gen1, FBD |
| Chipset Manufacturer | Intel |
| Clock Spec. | DB1900G |
| Diff. Input Signaling | HCSL |
| Diff. Inputs | 1 |
| Diff. Output Signaling | HCSL |
| Diff. Outputs | 19 |
| Diff. Termination Resistors | 76 |
| Function | Buffer |
| Length (mm) | 10 |
| MOQ | 168 |
| Moisture Sensitivity Level (MSL) | 3 |
| Output Enable (OE) Pins | 14 |
| Output Freq Range (MHz) | 400 |
| Package Area (mm²) | 100 |
| Pb Free Category | e3 Sn |
| Pitch (mm) | 0.5 |
| Pkg. Dimensions (mm) | 10.0 x 10.0 x 1.0 |
| Power Consumption Typ (mW) | 1300 |
| Qty. per Carrier (#) | 168 |
| Qty. per Reel (#) | 0 |
| Requires Terms and Conditions | Does not require acceptance of Terms and Conditions |
| Supply Voltage (V) | 3.3 - 3.3 |
| Tape & Reel | No |
| Temp. Range (°C) | 0 to 70°C |
| Thickness (mm) | 1 |
| Width (mm) | 10 |
The IDT9FG1901 follows the Intel DB1900G Differential Buffer Specification. This buffer provides 19 output clocks for CPU Host Bus, PCI-Express, or Fully Buffered DIMM applications. The outputs are configured with two groups. Both groups, DIF_(16:0) and DIF_(18:17) can be equal to or have a gear ratio to the input clock. A differential CPU clock from a CK410B+ main clock generator, such as the IDT932S421, drives the IDT9FG1901. The IDT9FG1901 can provide outputs up to 400MHz.