Diodes Incorporated
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4-Channel 2:1 Mux/DeMux, Enable Low 1.8V/2.5V/3.3V, High-Bandwidth, Hot Plug

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The PI3CH3257 is a 4-channel, 2:1 Multiplexer/ De-multiplexer with tri-state outputs. The switch introduces no additional ground bounce noise or propagation delay.

The PI3CH3257 device is very useful in switching signals that have high bandwidth (500 MHz).


  • Near-Zero Propagation Delay
  • 4Ω Switches Connect Inputs to Outputs
  • High Signal Passing Bandwidth (500MHz)
  • Beyond Rail-to-Rail Switching
    • 0 to 5V Switching with 3.3V Power Supply
    • 0 to 3.3V Switching with 2.5V Power Supply
    • 0 to 2.5V Switching with 1.8V Power Supply
  • 5V I/O Tolerant with Supply in OFF and ON State
  • 8V, 2.5V and 3.3V Supply Voltage Operation
  • Hot Insertion Capable
  • Industrial Operating Temperature: -40°C to +85°C
  • 8kV ESD Protection (Human Body Model)
  • Latch-Up Performance: >200mA per JESD17
  • 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-Q100/101/104/200, 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 available):
    • 16-pin, 173-mil Wide Plastic, TSSOP (L)
    • 16-pin, 150-mil Wide Plastic, QSOP (Q) (Preliminary)
    • 16-pin, 1.8x2.6mm, UQFN (ZTA)

Product Specifications

Product Parameters

Configuration Mux: Quad 2-Channel
Differential Channels N/A
HotInsertion 1
Lanes N/A
Rail-to-Rail Yes
Signal Type Single Ended
Single Ended Channels 4
Voltage 1.8/ 2.5/ 3.3

Technical Documents

Recommended Soldering Techniques


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

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