Skip to main content
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

  • Two differential LVDS output pairs
  • Crystal input frequency range: 20MHz to 30MHz
  • Output frequency range: 150MHz to 187.5MHz
  • VCO range: 600MHz to 750MHz
  • RMS phase jitter at 156.25MHz (1.875MHz to 20MHz): 0.31ps (typical)
  • Full 3.3V supply mode
  • 0 °C to 70 °C ambient operating temperature
  • Lead-free (RoHS 6) packaging

Description

The 844252-04 is a 10Gb/12Gb Ethernet clock generator. The device can synthesize 10 Gigabit Ethernet and 12 Gigabit Ethernet with a 25MHz crystal. It can also generate SATA and 10Gb Fibre Channel reference clock frequencies with the appropriate choice of crystals. The 844252-04 has excellent phase jitter performance and is packaged in a small 16-pin TSSOP, making it ideal for use in systems with limited board space.

Applied Filters: