Diodes Incorporated PI3DBS16213ZLEX

Overview

PI3DBS16213ZLEX from Diodes Incorporated is a 6-to-2 differential channel multiplexer/demultiplexer switch optimized for high-speed serial interfaces. It supports bidirectional 20 Gbps data rates, delivers 12 GHz bandwidth, achieves ≤10 ps channel-to-channel skew and −2.9 dB insertion loss at 10 GHz, and operates from a single 3.3 V supply across −40°C to +85°C - deployed in USB3.1 Gen 2, PCIe 4.0, and Thunderbolt 3 interconnects.

For engineers reviewing the PI3DBS16213ZLEX datasheet, PI3DBS16213ZLEX pinout, PI3DBS16213ZLEX application, or PI3DBS16213ZLEX equivalent, key selection criteria include differential insertion loss at 8–10 GHz, channel skew tolerance, 3.3 V supply compatibility, TQFN-30 package footprint, and support for PCIe 4.0/USB3.1 Gen 2 signal integrity requirements.

Technical Context

The PI3DBS16213ZLEX implements a 3:1 differential Mux/DeMux architecture with two independent output lanes (D0+/D0−, D1+/D1−), each selectable from three differential input pairs (A0/A1/B0, A0/A1/B1). Its layout-optimized signal path minimizes impedance discontinuity and crosstalk, targeting USB3.1 Gen 2 and PCIe 4.0 channel compliance.

Control is implemented via two binary select lines (SEL1, SEL2) enabling deterministic routing without internal logic or clocking. The device operates passively in both directions with no signal regeneration, relying on low-loss analog switching topology and matched differential trace routing within the ZL30 TQFN package.

Key Specifications

Pinout & Package

Package: 30-contact, 2.5 mm × 4.5 mm, 0.4 mm pitch Thin Quad Flat No-Lead (TQFN-ZL30), RoHS-compliant and halogen-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed differential multiplexer applications.

Compared with PI3DBS16212ZLEX, the PI3DBS16213ZLEX adds a third input lane for flexible source arbitration; versus TS3USB30EVM, it doubles bandwidth and supports full PCIe 4.0/USB3.1 Gen 2 signal fidelity at 3.3 V, making it the only option for next-gen high-speed interconnect switching.

Availability

PI3DBS16213ZLEX is available at Aetrix Electronics and suitable for USB3.1 Gen 2 docking stations, PCIe 4.0 SSD expansion cards, and Thunderbolt 3 host interface modules requiring stable component supply and validated high-speed signal integrity.

Supply support for PI3DBS16213ZLEX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.

The PI3DBS series targets high-speed interface signal routing, specifically engineered to replace mechanical switches and legacy muxes in USB, PCIe, SAS, and Thunderbolt interconnects where sub-10 ps skew and <−2 dB loss at 10 GHz are mandatory.

FAQ

What is the maximum supported data rate for PI3DBS16213ZLEX?

The PI3DBS16213ZLEX supports up to 20 Gbps, verified per IEEE 802.3bj and USB3.1 Gen 2 specifications. This enables full-rate operation for PCIe 4.0 x1, USB3.1 Gen 2, and Thunderbolt 3 differential signaling without retiming or equalization overhead.

Does PI3DBS16213ZLEX require external biasing or termination resistors?

No. The device uses internally matched 100 Ω differential termination and requires no external AC coupling capacitors, bias resistors, or termination networks. All high-speed I/O pins are DC-coupled and compliant with standard PCB stack-up guidelines for 100 Ω differential microstrips.

Can PI3DBS16213ZLEX be used in PCIe 5.0 applications?

No. Its 12 GHz bandwidth and −2.9 dB insertion loss at 10 GHz meet PCIe 4.0 requirements but fall short of PCIe 5.0's 16 GHz fundamental frequency and stricter loss budget. For PCIe 5.0, Diodes recommends the PI3DBS32212 family with extended 22 GHz bandwidth.

Is PI3DBS16213ZLEX pin-compatible with PI3DBS16213XEAEX?

No. The ZL30 (30-pin TQFN) and XEA24 (24-pin X1QFN) packages have different pin counts, layouts, and I/O assignments. Signal mapping differs significantly - e.g., ZL30 exposes all six input pairs and both outputs explicitly, while XEA24 consolidates inputs using shared pins and omits one output lane.