USB 1.1 PHY IP for IOT and Low Power application


M31 provides customers a unique USB 1.1 PHY IP for IOT application. The USB 1.1 PHY IP incorporates a semi-digital PLL which can supports clock inputs as low as 32.768KHz. The USB 1.1 PHY IP not only supports the standard USB 1.1 functions but also provides multiple clock outs ranged from 48MHz to 240MHz. It’s extremely suitable for IOT devices or wearable devices which may need the basic USB functions.


  • Worldwide smallest USB 1.1 PHY IP with PLL inside (<0.1mm²)
  • Fully compliant with Universal Serial Bus (USB) 1.1 electrical specifications
  • Integrated PLL to provide a variety of stand-alone clock outputs
  • Available in 28nm, 40nm, 55nm, and 90nm ULP process

The unique USB1.1 PHY IP with a semi-digital
PLL inside only consumes area < 0.1mm²