SCAA144 October   2023 TUSB1104

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2USB 3.2 Gen 2x2
    1. 2.1 What is USB 3.2 Gen 2x2?
    2. 2.2 TUSB1104 Introduction
    3. 2.3 USB 3.2 Gen 2x2 Application With TUSB1104
  6. 3Summary
  7. 4References

1 Introduction

USB 3.2 Gen 2x2 is a multi-lane operation for new hosts and devices, allowing for up to two lanes of 10Gbps operation to realize a theoretical 20Gbps data transfer rate.

The USB 3.2 Gen 2x2 allows the user to transfer data between devices quicker, and supports backwards compatibility, addressing any concerns related to functionality with older technology. Backwards compatibility implies that new drives support existing USB specifications.

A USB Type-C connector has four pairs of metal pins functioning as lanes that transfer and receive data. USB 3.2 Gen 1 (5Gbps) and USB 3.2 Gen 2 (10Gbps) use one TX lane and one RX lane, based on the positioning of the connector. USB 3.2 Gen 2x2 takes advantage of all four lanes to achieve up to the theoretical 20Gbps transfer rate.