PI3USB31ZUAEX

PI3USB31ZUAEX is a USB 3.x high‑speed switch/multiplexer from Diodes Incorporated (formerly Pericom) in the PI3USB family. It provides a controlled path for USB SuperSpeed differential pairs, enabling routing of one USB 3.x link to one of two connectors or implementing orientation switching for USB‑C hubs/controllers. Typical uses include USB hubs, multi‑port dongles, and Type‑C controllers where the correct port must be connected under control.
Key points:
- Function: crosspoint switch/mux for USB 3.x signals (with device‑dependent ESD protection and features).
- Data rate: supports SuperSpeed operation per the device revision.
- Control: uses simple control signals to select the active path.
- Packaging/grade: EX suffix often denotes extended‑temperature/industrial grade; verify exact specs in the datasheet.
For precise information, consult the official PI3USB31ZUAEX datasheet. If you share a link, I’ll summarize the exact specs.

PI3USB31ZUAEX is a USB 3.0 SuperSpeed switch/mux. Key features (typical):
- 5 Gbps USB 3.0 SuperSpeed data-rate routing
- 2:1 port switching (selects between two USB ports for a single host/controller)
- Single-supply operation (logic and I/O on a common Vcc)
- Control pins for enable and path selection
- Low on-resistance on the data paths for minimal signal loss
- USB 2.0 compatibility and hot-swappable operation
- Integrated ESD protection on D+/D- lines
- Small footprint package (ZUAEX) with exposed pad
- Industrial temperature range (typically -40°C to +85°C)
Note: for exact electrical specs (Vcc range, on-resistance, leakage, ESD levels, pinout) and packaging details, refer to the official datasheet.

Pin count: 20 pins.
Function: USB 3.0 high-speed switch/multiplexer (PI3USB31) that routes the SuperSpeed TX/RX data paths between an upstream port and one of two downstream ports (USB 3.0 data-path switch).

- Manufacturer: Pericom Semiconductor (now part of Diodes Incorporated).
- What kind of company: A semiconductor company that designs and sells high-speed mixed-signal ICs, including USB/PCIe signal switches, crosspoint switches, clock management, and related connectivity devices.

PI3USB31ZUAEX is a USB 3.1 Gen 1 2:1 data-path switch/multiplexer. Typical applications include:
- Routing a single USB port to two devices or two hosts to one device (port switching)
- Internal USB routing on notebook/desktop motherboards
- USB docking stations and USB hubs requiring a 2:1 switch
- Embedded systems and single-board computers needing USB path selection
- Consumer electronics (set-top boxes, media players, game consoles) requiring controlled USB connections

QFN package (Quad Flat No-Lead) with an exposed pad.