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PCIe 3.0, 1-lane (2-Channel), Differential 2:1 Mux/DeMux. 3.3V

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Product Description

The PI3PCIE3212 is a PCIe Gen3.0, 8Gbps, 4 to 2 differential, bi-directional channel multiplexer/demultiplexer switch. Due to its low bit-to-bit skew, high channel-tochannel noise isolation and bandwidth, this product is ideal for PCI Express® 3.0 signal switching at 8.0Gbps.


  • 2 Differential Channel, 2:1 Mux/DeMux
  • PCI Express® 3.0 performance, 8.0Gbps
  • Bi-directional operation
  • 3dB Bandwidth: 8.1GHz
  • Low Bit-to-Bit Skew, 10ps max
  • Low channel-to-channel skew: 20ps max
  • Low insertion loss: -1.7dB @4GHz (8.0Gbps)
  • Low return loss: -13.5dB @4GHz (8.0Gbps)
  • Low Crosstalk: -32dB@4GHz (8.0Gbps)
  • Low Off Isolation: -21dB@4GHz (8.0Gbps)
  • Supply Voltage: 3.3V ± 10%
  • Low Current: 0.2mA typ.
  • Packaging (Pb-free & Green): 
    • – 20-contact QFN (2.5 × 4.5mm)


Switch a PCI Express 3.0 lane output between two PCI Express lane inputs. Applications include NBs, PCs, servers, and other embedded devices. Routing of PCI Express 3.0, DP1.2, USB3.0, SAS2.0, SATA3.0, XAUI, RXAUI signals with low signal attenuation.

Product Specifications

Product Parameters

Configuration Mux, 2:1: 2-Differential Channel
Differential Channels 2
Lanes 1
Voltage 3.3

Technical Documents

Design tool model software

Recommended Soldering Techniques


Additional Technical Documents are available upon request: 
Application information, Evaluation board, and Other technical documents

Request Documents
Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
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Request Samples
Qty. Carrier
PI3PCIE3212XUAEX Active X2-QFN2020-18 TPGP 3500 T&R Contact Sales Request Sample
PI3PCIE3212ZBEX Active V-QFN2545-20 TPGP 3500 T&R


Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow Electronics 1205 12/5/2022 United States Buy Now
Arrow Electronics 3500 12/5/2022 United States Buy Now
Avnet 7000 12/5/2022 United States Buy Now
Digi-Key Electronics 22915 12/5/2022 Europe, Asia, North America Buy Now
Farnell, An Avnet Company 3500 12/5/2022 England Buy Now
Mouser Electronics Inc. 31942 12/5/2022 South America, North America, Asia, Europe, Middle East Buy Now
Future Electronics 3500 12/4/2022 Canada Buy Now
Future Electronics - Asia 17500 12/4/2022 Singapore Contact Sales
Request Sample

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

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2510 2021-02-26 2021-05-26 Qualified Additional A/T Sites, Fab Site and Data Sheet Change


Related Application FAQs

Related Protocol FAQs