Diodes Incorporated
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Dual SPDT for USB 2.0 HS Compliance and Flow Through Pinout

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Product Description

The PI3USB102 is a single differential channel 2:1 multiplexer/demultiplexer USB 2.0 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 USB Host device to one of two corresponding 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 High Speed USB 2.0 (480 Mb/s). The PI3USB102 offers over voltage protection per the USB 2.0 specification. With the chip powered on or off, all I/O pins can withstand a short to Vbus (5V +/-10%). This feature can only be offered if a 100-ohm pull up resistor is placed between VDD pin to the power supply. In situations where Vbus can be as high as 7V, Diodes recommends changing the resistor value from 100ohm to 200ohm. Diodes can still support over-voltage protection up to 7V, as long as the 200ohm resistor is present.


  • USB 2.0 compliant (high speed and full speed)
  • RON is 4.0Ω typical @ VDD = 3.0V
  • Low bit-to-bit skew
  • Low Crosstalk: –33dB @ 480 Mbps
  • Off Isolation: –40dB @ 480 Mbps
  • Near-Zero propagation delay: 250ps
  • Switching speed: 9ns
  • Channel On Capacitance: 5.5pF
  • VDD Operating Range: 2.7V to 4.2V ±10%
  • Data pin I/O ESD: 8kV contact
  • -0.5dB BW of 300MHz
  • I/O pins have over-voltage protection and can tolerate a short to Vbus as long as resistor/diode is added between 3.3V power rail and Diodes' VDD
  • Packaging (Pb-free & Green): 10-contact UQFN, 1.4mm x 1.8mm x 0.5mm (ZME10) 10-contact TQFN, 1.3mm x 1.6mm x 0.75mm (ZLE10)


  • Routes signals for USB 2.0
  • Hand-held devices

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
Configuration 1-Differential Channel 2:1
Differential Channels 1
HotInsertion 1
Lanes N/A
OtherFeatures N/A
RailToRail 0
Signal Type Differential and Single Ended
Single Ended Channels 2
Voltage 3.3

Technical Documents

Design tool model software

Application Information

Recommended Soldering Techniques


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

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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-2602 2023-01-31 2023-07-31 Device End of Life (EOL)