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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

  • 2 - 0.8V push-pull differential CPU pairs
  • 2 - 0.8V push-pull differential PCIEX pairs
  • 1 - 0.8V push-pull differential SATA75 pair
  • 1 - 0.8V push-pull differential DOT96 pair
  • 1 - 0.8V push-pull differential CPU/PCIEX selectable pair
  • 1 - PCI (33MHz)
  • 1 - PCICLK_F, (33MHz) free-running
  • 1 - USB, 48MHz
  • 1 - 12/48MHz
  • 1 - 25MHz
  • 1 - REF, 14.318MHz
  • 1 - 12.288MHz
  • CPU outputs cycle-cycle jitter < 85ps
  • PCIEX outputs cycle-cycle jitter < 125ps
  • SATA outputs cycle-cycle jitter < 125ps
  • PCI outputs cycle-cycle jitter < 500ps
  • +/- 100ppm frequency accuracy on all clocks
  • VDDSUSP allows 25MHz to run in S-states
  • Supports programmable spread percentage
  • Uses external 25MHz crystal, external crystal load caps are required for frequency tuning
  • PEREQ# pins to support PCIEX/SATA power management.
  • Low power differential clock outputs (No 50? resistor to GND needed)
  • Integrated 33? series resistor on all differential outputs.

Description

The 9LPRS436C is a low power CK505-compatible clock targeted at Intel-based Netbooks and Nettops. This clock synthesizer provides a single chip solution for systems using the Intel NM10 chipset paired with the Intel N450/D410/D510 Atom® CPUs. The 9LPRS436C is driven with a 25MHz crystal.

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