Clocks & Timing

The wide range of interfaces in today’s computing systems (PCI Express, SATA, USB, SAS, DMI, QPI, Hypertransport, Ethernet, etc.), and the multiple CPU architectures (Intel, Freescale, etc) demand a daunting array of tradeoffs in areas of performance, BOM cost, and board space. Renesas has the longest standing relationship with the industry’s leading CPU and compute vendors to offer both the largest portfolio of reference clock solutions and value-added clocks that provide customer-optimized tradeoffs.

Renesas is a leading innovator in the compute timing space with many firsts including: first to introduce low power HCSL outputs to replace standard-HCSL outputs for power savings up to 85%; first to provide dynamic frequency control for over/under clocking and margining; first to incorporate multiple PLLs in a single device to save power and board space. Renesas takes pride in offering motherboard clock and server clock solutions that best fit your particular design. Find your ideal computing clock solution by browsing the devices listed below.

Product Selection Table

    Processing table
    Chipset Manufacturer
    Clock Spec.
    100M SSC Outputs
    100M Non-SSC Outputs
    PCI 33.33M Outputs (#)
    25M Outputs
    Advanced Features
    Power Consumption Typ (mW)
    App Jitter Compliance
    Supply Voltage (V)
    Output Type
    Xtal Freq (MHz)
    Diff. Termination Resistors
    Lead Count (#)
    Package Area (mm²)
    Part Number
    6P41505
    System Clock Generator for Loongson Platform    		 Loongson Loongson 7A 0 8 0 1 33MHz or 48MHz, 200MHz Differential LVDS 232 10GbE, PCIe Gen1, PCIe Gen2, PCIe Gen3, USB 3.0 1.8 - 3.3 HCSL, LP-HCSL, LVCMOS, LVDS, LVPECL 25 0 48
    6V49205B
    Clock Generator for Freescale P1010, P1020, P2020, P2040 Processors    		 NXP Programmable Clock, Spread Spectrum PCIe Gen1, PCIe Gen2, PCIe Gen3 3.3 HCSL, LVCMOS 25 48 49, 76.3
    8413S12BI
    HCSL/LVCMOS Clock Generator    		 Cavium Cavium: Period Jitter < 70 ps 0 10 0 2
    25M output(s), 50M output(s), 100M output(s), 125M output(s) and more...
    		 901 PCIe Gen1, PCIe Gen2, PCIe Gen3, XAUI 3.3 HCSL, LVCMOS 25 40 72 100
    8413S12I-100
    Clock Generator For Cavium Processors    		 Cavium Cavium: Period Jitter < 70 ps 0 10 0 2
    25M output(s), 50M output(s), 100M output(s), 125M output(s) and more...
    		 901 PCIe Gen1, PCIe Gen2, PCIe Gen3, XAUI 3.3 HCSL, LVCMOS 25 40 72 100
    841N254I
    FemtoClock™ NG Crystal-to-LVDS/HCSL Clock Synthesizer    		 Cavium Cavium: Period Jitter < 44 ps 0 4 0 0
    100M output(s), 125M output(s), 156.25M output(s) and more...
    		 834 RXAUI, XAUI 2.5 - 3.3 HCSL, LVDS 25 10 32 25
    844S2416I
    FemtoClock™ Crystal-to-Differential HCSL/LVCMOS Frequency Synthesizer    		 Cavium Cavium: Period Jitter < 70 ps 1 2 0 12 Frequency Margining, Programmable Clock, Spread Spectrum 1060 PCIe Gen1, PCIe Gen2, PCIe Gen3 3.3 HCSL, LVCMOS 25 6 56 64
    8V41N012A
    Clock Generator For Cavium Processors    		 Cavium Cavium: Period Jitter < 44 ps 0 10 0 2
    25M output(s), 50M output(s), 100M output(s), 125M output(s) and more...
    		 970 PCIe Gen1, PCIe Gen2, PCIe Gen3, RXAUI, XAUI 3.3 HCSL, LVCMOS 25 40 72 100
    932SQ420
    CK420BQ Synthesizer    		 Intel CK420BQ 7 4 5 0 14.318M output(s), 48M output(s), DOT96M output pair(s) 1300 PCIe Gen1, PCIe Gen2, PCIe Gen3, QPI 3.3 HCSL, LVTTL 25 48 64 81, 103.7
    932SQ428
    CK420BQ Derivative Synthesizer    		 Intel CK420BQ Derivative 3 2 5 0 14.318M output(s), 48M output(s), DOT96M output pair(s) 825 PCIe Gen1, PCIe Gen2, PCIe Gen3, QPI 3.3 HCSL, LVTTL 25 24 48 36
    9EPRS525
    56-Pin CK505 Derivative for Embedded Systems    		 Intel CK505 Derivative 7 1 5 1
    14.318M output(s), 48M output(s), CPU 100M-400M output pair(s) and more...
    		 450 PCIe Gen1, PCIe Gen2 3.3 LP-HCSL, LVTTL 14.318 0 56 85.4
    9ERS3165
    64-Pin CK505 Derivative for Embedded Systems    		 Intel CK505 Derivative 12 1 5 1
    14.318M output(s), 48M output(s), CPU 100M-400M output pair(s) and more...
    		 383 PCIe Gen1, PCIe Gen2 3.3 LP-HCSL, LVTTL 14.318 0 64 81, 103.7
    9FGP204
    CK-MNG+ Peripheral Synthesizer for Intel Servers    		 Intel CK-MNG+ 1 0 1 2 32.768k output(s), 50M output(s), 125M output(s), DOT96M output pair(s) 673 3.3 HCSL, LVTTL 25 8 40 36
    9VRS4420D
    CK-µS for Intel µServers with 1GbE, PCIe Gen1-3 and SATA 1-3    		 Intel LP-HCSL 14.318 48
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