Diodes Incorporated
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PI3L301D (Obsolete)

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

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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

Analog or Digital? Analog
Compliance(Only Automotive supports PPAP) Standard
Configuration Mux: Quad 4-Channel
Differential Channels 8
HotInsertion 0
Lanes N/A
OtherFeatures N/A
Temperature (c) -40 to 85
Rail-to-Rail 0
Signal Type Differential
Single Ended Channels N/A
Voltage 3

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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-2642 2023-09-05 2024-03-05 Device End of Life (EOL)


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