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20-Output PCIe Gen4/Gen5 Clock Buffer With On-chip Termination

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The PI6CB332001 is a 20-output very low power PCIe Gen1/Gen2/Gen3/Gen4/Gen5 clock buffer. It is capable of distributing the reference clocks for UPI, SAS, SATA, and other applications as well. It takes an reference input to fanout twenty 100MHz low power differential HCSL outputs with on-chip terminations. The on-chip termination can save 80 external resistors and make layout easier. OE pins combined with SMBus bits as well as 3-wire side band interface provide easier power management for each output.

It uses Diodes' proprietary design to achieve very low jitter that meets PCIe Gen1/Gen2/Gen3/Gen4/Gen5 requirement.


  • Supports Intel's DB2000QL spec
  • 3.3V supply voltage
  • HCSL input: 100MHz (typ), up to 400MHz
  • 20 differential low power HCSL outputs with on-chip termination
  • Two output enable control modes
    - Traditional 8 OE# pins and 20 SMBus bits
    - Simple 3-wire Side-Band interface real-time control
  • SMBus interface support
  • Spread spectrum tolerant
  • Very low jitter outputs
    - Differential additive phase jitter: DB2000Q <30fs RMS
    - Differential additive phase jitter: PCIe Gen4 <30fs RMS
    - Differential additive phase jitter: PCIe Gen5 <20fs RMS
    - PCIe Gen1/Gen2/Gen3/Gen4/Gen5 compliant
  • Differential output-to-output skew <50ps
  • Low propagation delay: <3ns
  • Industrial temperature support: -40°C to 85°C
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/
  • Packaging (Pb-free & Green):
    - 80-lead 6x6mm dual-row aQFN

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
Function Buffer
Input Type(s) HCSL
Jitter RMS (ps) 0.05
Number of Outputs 20
Output Frequency (MHz) 100
Output Type(s) HCSL
Skew (PS) 50
Supply Voltage (V) 3.3
Ambient or Junction Temperature (°C) -40 to 85

Technical Documents

Recommended Soldering Techniques



Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
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Qty. Carrier
PI6CB332001ZXBIEX Active V-QFN6060-80 TPGP 3000 T&R


Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 8803 12/5/2022 Europe, Asia, North America Buy Now
Mouser Electronics Inc. 2924 12/5/2022 South America, North America, Asia, Europe, Middle East Buy Now
Rutronik GmbH 10 12/5/2022 Germany Buy Now
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Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free