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3.3V, 16-Bit to 8-Bit, Mux / DeMux Gigabit Ethernet LAN Switch (Single Enable)

NOTE: Datasheet may not yet reflect updated package obsolescence/phase out status or Package Drawing. Please refer to the PRODUCT OPTIONS tab for the most up to date package options and drawings. Please refer to PCN/PDN tabs for most current package obsolescence/phase out status.
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Product Description

Diodes' PI3L series of logic circuits are produced using the Company’s advanced sub-micron CMOS technology, achieving industry leading performance. The PI3L301D is a 16- to 8-bit multiplexer/demultiplexer LAN Switch. Industry leading advantages include a propagation delay of less than 250ps, resulting from its low channel resistance and I/O capacitance. The device multiplexes differential outputs from a Gigabit Ethernet transceiver (PHY) device to one of two corresponding B1 or B2 outputs. The switch is bidirectional and offers little or no attenuation of the high-speed signals at the outputs. It is designed for low bit-to-bit skew, high channel-to-channel noise isolation and is compatible with various standards, such as 10/100/ 1000 Base-T (Ethernet). Generally, this part can be used to replace mechanical relays in low-voltage LAN applications that interface a physical layer over CAT 5 or CAT 6 unshielded twisted pair cable through an isolation transformer.


  • RON is 4Ω typical
  • Low bit-to-bit skew: 200ps
  • Low crosstalk: –27dB @ 250MHz
  • Low Current Consumption: 20µA
  • Near-Zero propagation delay: 250ps
  • Switching speed: 9ns
  • Channel On-Capacitance: 9.5pF (typical)
  • VCC Operating Range: +3.0V to +3.6V
  • ESD >3000V . . . Human Body Model
  • >350 MHz bandwidth (or data frequency)
  • Packaging (Pb-free & Green available): 48-pin 240 mil wide plastic TSSOP (A)


  • Dual Physical Layer Device sharing to one interface connector
  • SONET OC-12(622Mbps) signal routing
  • Routes physical layer signals for 10/100/1000 Mbit Ethernet

Product Specifications

Product Parameters

Configuration Mux: Quad 4-Channel
Differential Channels 8
HotInsertion 0
Lanes N/A
OtherFeatures N/A
RailToRail 0
Signal Type Differential
Single Ended Channels N/A
Voltage 3

Related Content




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
PI3L301DAE Not Recommended for New Design (NRND) TSSOP-48 GREEN 39 TUBE
PI3L301DAEX Active TSSOP-48 GREEN 1500 T&R 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

PCN # Issue Date Subject
15-07 2015-07-28 Porting from MagnaChip's Fab 2 to Fab 3 and converting some products from Au to Cu wire
PCN-2411 2019-05-24 Device End of Life (EOL)
12-02 2012-01-23 Copper wire qualification for copper bondwire process for TSSOP-48 package (A48) at Greatek and OSE assembly sites.


Discontinued parts in this family

Obsolete Part # View PDN Package Comment Note
PI3L301D-AA PDN 08-0201 A48 Contact Product Sales See other LAN Switch products
PI3L301D-AAE PDN 13-0009 A48 Contact Pericom Customer Service
PI3L301D-AAEX PDN 13-0009 A48 Contact Pericom Customer Service
PI3L301DA PDN 08-0201 A48 Contact Product Sales See other LAN Switch products
PI3L301DKE PDN 13-0001 K48 Contact Pericom Customer Service Customer_Service@pericom.com
PI3L301DKEX PDN 13-0001 K48 Contact Pericom Customer Service Customer_Service@pericom.com


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