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The Intersil ISL76120 dual 2:1 multiplexer IC is a single supply part that can operate from a single 2. 7V to 5. 5V supply. It contains two SPDT (Single Pole/Double Throw) switches configured as a DPDT. The part was designed for switching between USB high-speed and USB full-speed sources in portable battery powered products. The normally-closed (NC) FSx switches can swing rail-to-rail and were specifically designed to pass USB full speed data signals (12Mbps) that range from 0V to 3. 6V. The normally-open (NO) HSx switches have high bandwidth and low capacitance and were specifically designed to pass USB high speed data signals (480Mbps) with minimal distortion. The part can be used in a variety of automotive entertainment and infotainment applications where consumer USB devices such as Portable Media Players (PMPs) are to be connected to embedded systems. The product allows switching between a high-speed transceiver and a full-speed transceiver while connected to a single USB host. Additionally, the part can be used for charge control of PMPs. The digital logic inputs are 1. 8V logic compatible when operated with a 2. 7V to 3. 6V supply. The part has an enable pin to open all switches. It can be used to facilitate proper bus disconnect and connection when switching between the USB sources. The ISL76120 is available in a 10 Ld 3mmx3mm TDFN package. It operates across a temperature range of -40°C to +105°C.


  • High speed (480Mbps) and full speed (12Mbps) signaling capability per USB 2.0
  • 1.8V logic compatible (2.7V to +3.6V supply)
  • Enable pin to open all switches, simplifies multiple USB client management
  • -3dB frequency
  • HSx switches: 880MHz
  • FSx switches: 550MHz
  • Crosstalk at 1MHz: -70dB
  • Off-isolation at 100kHz: -98dB
  • Single supply operation (VDD): 2.7V to 5.5V
  • Available in TDFN package
  • Robust ESD rating: >8.5kV HBM
  • Ultra-low operating current: 60nA
  • -40°C to +105°C Operation
  • AEC-Q100 qualified component
  • Pb-Free (RoHS Compliant)


  • Automotive USB Docks MP3 and PMP Player Attach Kits Infotainment Systems
  • After Market Automotive Options

Product Options

Orderable Part ID Part Status Pkg. Type Carrier Type MOQ Buy Sample
Obsolete TDFN Tube 1000
Obsolete TDFN Reel 6000

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL76120 Datasheet Datasheet PDF 1.53 MB
PCN14016 - SCM to Carsem Assembly Transfer (Automotive) Product Change Notice PDF 228 KB
PCN14006 - Test Site Change for the Listed Intersil Products Product Change Notice PDF 168 KB