The ISL54222A is a single supply dual 2:1 multiplexer that can operate from a single 1.8V to 3.3V supply. It contains two Single Pole/Double Throw (SPDT) switches configured as a DPDT. The part was designed for switching or routing of USB High-Speed signals and/or USB Full-Speed signals in portable battery-powered products. The 4.4Ω switches can swing rail-to-rail and were specifically designed to pass USB Full-Speed data signals that range from 0V to 3.3V and USB High-Speed data signals that range from 0V to 400mV with a single supply as low as 1.8V. They have high bandwidth and low capacitance to pass USB High-Speed data signals with minimal distortion. The digital logic inputs are 1.8V logic compatible when operated with a 1.8V to 3.3V supply. The ISL54222A has an output enable pin to open all the switches and put the part in a low power state. The ISL54222A is available in 10 Ld 1.8mm x 1.4mm µTQFN, 10 Ld 2.1mm x 1.6mm µTQFN, 10 Ld TDFN and 10 Ld MSOP packages. It operates over a temperature range of -40 °C to +85 °C.


  • High-speed (480Mbps) and full-speed (12Mbps) signaling capability per USB 2.0
  • 1.8V logic compatible
  • Low power all off state
  • Power OFF protection
  • D-/D+ pins overvoltage tolerant to 5.5V
  • -3dB frequency: 780MHz
  • Low ON capacitance @ 240MHz: 4.2pF
  • Low ON-resistance @ VDD = 3V: 4.4Ω
  • Low ON-resistance @ VDD = 1.8V: 5.7Ω
  • Single supply operation (VDD): 1.8V to 3.3V
  • Available in µTQFN, TDFN, MSOP packages
  • Pb-free (RoHS compliant)
  • Compliant with USB 2.0 short circuit and overvoltage requirements without additional external components
  • HBM ESD performance I/O to GND: >12kV


  • MP3 and other personal media players
  • Cellular/Mobile phones
  • PDAs
  • Digital cameras and camcorders
  • USB switching

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active TDFN Tube 100
Active TDFN Reel 6000
Active uTQFN Reel 3000
Active uTQFN Reel 3000
Active MSOP Tube 50
Active MSOP Reel 2500

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL54222A Datasheet Datasheet PDF 1.33 MB
PCN11059 - Shipping Tube Change for Intersil MSOP Packaged Products Product Change Notice PDF 117 KB
PCN10114 - Part Marking Configuration Change for Intersil TDFN, uTDFN, and uTQFN Packaged Products Product Change Notice PDF 205 KB
TB363: Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs) Other PDF 293 KB
PA14042 - Minimum Line Quantity Change Product Advisory PDF 363 KB

Boards & Kits

Part Number Title Type Company
ISL54222AIRUEVAL1Z High-Speed USB 2.0 (480Mbps) Multiplexer Evaluation Board Evaluation Renesas