When process nodes reach 7 nm, quantum effects begin impacting high-signaling-voltage inputs/outputs (I/Os) such as 3.3 V and can no longer be easily supported. For devices relying on USB 2.0 interfaces, this trend can lead to complicated design challenges for advanced process nodes. However, the continued shrinking of SoC node size has led to a thinner gate oxide that can only support lower voltages. ![]() eUSB2 can enable smaller, more power-efficient SoCs, in turn enabling process nodes to continue to scale while increasing performance in applications such as smartphones, tablets and notebooks.Īs applications like smartphones and tablets continue to pack more and more components into smaller form factors, it’s essential that interfaces shrink as well. ![]() The embedded USB2 (eUSB2) specification is a supplement to the USB 2.0 specification that addresses issues related to interface controller integration with advanced system-on-chip (SoC) process nodes by enabling USB 2.0 interfaces to operate at I/O voltages of 1 V or 1.2 V instead of 3.3 V.
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