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Renesas Electronics Corporation

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.

Features

  • PCIe Gen5 phase jitter < 50fs rms
  • PCIe Gen6 phase jitter < 40fs rms
  • 3.3V operation
  • Three 100MHz dedicated output pairs with individual OE# pins
  • Two MXCLK output pairs multiplexable between 100MHz and 25MHz
  • One 25MHz dedicated output pair
  • 85Ω differential Low-Power HCSL (LP-HCSL) outputs eliminate 24 resistors, saving 39mm2 of area
  • Three selectable SMBus addresses
  • Supports 0%, -0.3% and -0.5% spread-spectrum amounts
  • Side-Band Interface allows real-time hardware control of all output enables
  • 5 × 5 mm, 40-VFQFPN
  • -40°C to +85°C operating temperature range

Description

The 9SQ445 is a CK440Q Lite clock synthesizer for newer Intel-based server platforms. The 9SQ445 is a single-chip, PCIe Gen6 compliant device. It is designed to work as a complete clock solution, or in combination, with DB2000Q-compliant or other clock buffers to provide point-to-point clocks to multiple receiving agents.

Parameters

AttributesValue
Diff. Outputs6
App Jitter CompliancePCIe Gen1, PCIe Gen2, PCIe Gen3, PCIe Gen4, PCIe Gen5, PCIe Gen6
Output TypeLP-HCSL
Product CategoryPCI Express Clocks

Package Options

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
VFQFPN5.0 x 5.0 x 0.9400.4

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