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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

  • 3 universal outputs LVPECL, LVDS, HCSL - or 6 LVCMOS outputs
  • 1 additional LVCMOS reference output
  • In-system programmable with 3 independent output frequencies
  • Up to 350MHz input/output frequencies
  • Also supports crystal input
  • Stores 4 different configurations in OTP non-volatile memory
  • < 100mW core power (at 3.3V)
  • < 0.5ps RMS phase jitter (typ.)
  • Meets PCIe® Gen 1/2/3, USB 3.0, 1/10 GbE clock requirements
  • 1.8/2.5/3.3V core and output voltages
  • 4mm x 4mm 24 Ld VFQFPN
  • -40 °C to +85 °C operating temperature range
  • Supported by Renesas' Timing Commander™ software tool

Description

The 5P49V6914 is a programmable clock generator intended for high-performance consumer, networking, industrial, computing, and data communications applications. Configurations may be stored in on-chip One-Time Programmable (OTP) memory or changed using I²C interface. This is Renesas' sixth generation of programmable clock technology (VersaClock® 6). The frequencies are generated from a single reference clock. The reference clock can come from one of the two redundant clock inputs. A glitchless manual switchover function allows one of the redundant clocks to be selected during normal operation.

Two select pins allow up to four different configurations to be programmed and accessible using processor GPIOs or bootstrapping. The different selections may be used for different operating modes (full function, partial function, partial power down), regional standards (US, Japan, Europe), or system production margin testing. The device may be configured to use one of two I²C addresses to allow multiple devices to be used in a system.

Applications

  • Ethernet switches/routers
  • PCI Express 1.0/2.0/3.0
  • Broadcast video/audio timing
  • Multi-function printers
  • Processor and FPGA clocking
  • Any-frequency clock conversion
  • MSAN/DSLAM/PON
  • Fiber Channel, SAN
  • Telecom line cards
  • 1GbE and 10GbE

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