PI3PCIE3412AZHEX

PI3PCIE3412AZHEX is a PCIe switch/bridge in the PI3PCIE family (Pericom/Diodes/Renesas lineage). It sits between a PCIe root complex and one or more PCIe endpoints, enabling fan-out or routing of PCIe lanes to multiple downstream devices on a single card or module.
Key points:
- Functions as a PCIe switch or multiplexer to connect one upstream port to multiple downstream ports.
- Supports PCIe signaling (Gen 2/Gen 3 variants exist) with typical lane widths and routing options; exact speed and port count depend on the specific device variant (consult the datasheet for the 3412AZHEX).
- Features commonly include configurable port routing, hot-plug suitability, low power operation, and standard PCIe electrical interfaces.
- The AZHEX suffix denotes a specific packaging/lead-free variant for sourcing.
For exact specifications (upstream/downstream port counts, lane widths, speeds, voltage levels, ESD protection, and package pinout), refer to the official PI3PCIE3412AZHEX datasheet. If you want, I can look up the datasheet details.

QFN-16 (4x4 mm) package with an exposed thermal pad (AZHEX code).

Pin count: 16 pins (QFN16, AZHEX package).
Function: PCIe switch/re-timer that provides a 1-lane upstream PCIe (x1) and fans out to two downstream PCIe x1 ports (1:2 PCIe switch).

Manufacture: Pericom Semiconductor (now part of Renesas Electronics).
Company type: A fabless semiconductor company that designs high‑speed interconnect ICs, specializing in PCIe switches/re-timers/repeaters and other data‑path devices.

PI3PCIE3412AZHEX is a PCIe switch used to expand and route PCIe lanes between a host (upstream) and multiple endpoints (downstream). Typical applications:
- PCIe-based backplanes and motherboards
- Servers, blades, data-center expansion
- Embedded/industrial equipment and medical devices
- NVMe storage arrays and RAID controllers
- FPGA/ASIC accelerators and PCIe add-on cards
- High-performance networking, telecom, and edge compute systems