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Diodes Incorporated PI3USB32212ZLEX
- Part No.:
- PI3USB32212ZLEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Analog Switches - Special Purpose
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
PI3USB32212ZLEX.pdf
- Description:
- USB3 SWITCH W-QFN3060-32 T&R 3.5
- Quantity:
- Payment:
- Shipping:
Inventory:31,798
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Product details
Overview
PI3USB32212ZLEX from Diodes Incorporated is a 1:2 differential mux/demux IC for USB 3.1 Enhanced SuperSpeed (10 Gbps), USB 3.0 SuperSpeed (5 Gbps), and USB 2.0 High-Speed (480 Mbps) signal routing. It supports bidirectional switching of Tx/Rx differential pairs and D+/D− lanes, features -1.5 dB insertion loss at 5 GHz, -19.6 dB return loss at 5 GHz, and 10.6 GHz -3 dB bandwidth - enabling low-distortion signal path selection in high-density docking stations and multi-host USB hubs.
For engineers reviewing the PI3USB32212ZLEX datasheet, PI3USB32212ZLEX pinout, PI3USB32212ZLEX application, or PI3USB32212ZLEX equivalent, key selection criteria include its dual-domain control logic (SEL1/PD for USB3.x, SEL2/OE for USB2.0), 32-pin TQFN package with exposed thermal pad, channel-to-channel skew ≤7 ps, and compatibility with DisplayPort, PCIe Gen3, and SATA 6G interfaces.
Technical Context
The PI3USB32212 implements independent analog switch matrices for USB3.x (differential Tx/Rx lanes) and USB2.0 (D+/D−), each controlled by dedicated logic inputs (SEL1/PD and SEL2/OE). Its architecture maintains signal integrity via matched trace lengths, low RON (13 Ω typ. for SS, 6 Ω typ. for HS), and integrated ESD protection (2 kV HBM).
It supports three operational states per domain: Port A active, Port B active, or Hi-Z disable. The device uses a single 3.3 V ±10% supply across all 31 functional pins (excluding GND), with VDD pins distributed to minimize power rail noise coupling into high-speed paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 10.6 GHz for USB3.1 Enhanced SS - preserves 10 Gbps eye opening without equalization |
| Insertion Loss @ 5 GHz | -1.5 dB for SS channels - limits amplitude degradation in 10 Gbps links |
| Return Loss @ 5 GHz | -19.6 dB for SS channels - ensures <1.25 VSWR, reducing reflections at connector interfaces |
| Bit-to-Bit Skew | 5 ps typ. between differential pair legs - maintains USB3.x common-mode rejection |
| Off Isolation @ 5 GHz | -17.4 dB for SS channels - suppresses crosstalk between inactive port and active path |
| USB2.0 HS Insertion Loss | -0.67 dB @ 480 Mbps - meets USB-IF HS insertion loss budget (< −1.0 dB) |
| Supply Voltage | 3.3 V ±10% - compatible with standard I/O rails; no external LDO required |
Pinout & Package
Package: 32-pin TQFN (ZL), 3 mm × 6 mm × 0.75 mm, 0.4 mm pitch, exposed thermal pad (GND-connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–2, 5–6, 21–22, 26–27, 28–29, 23–24 | USB3.x differential I/O (Tx+, Tx−, Rx+, Rx−, Tx+A/B, Rx+A/B) | Full-duplex SS lane routing; pin-pair symmetry ensures <5 ps intra-pair skew |
| 10–11, 14–15, 17–18 | USB2.0 differential I/O (D+, D−, D+A/B, D−A/B) | HS/FS signal switching; low RON (6 Ω typ.) minimizes rise-time degradation |
| 7, 9, 19, 32 | Digital controls (SEL1, SEL2, OE, PD) | CMOS-compatible inputs; PD enables full USB3.x output disable; OE gates USB2.0 paths |
| 4, 8, 31 | VDD (3.3 V supply) | Three dedicated power pins reduce IR drop and improve PSRR for analog switches |
| 3, 12–13, 16, 20, 25, 30, bottom pad | GND | Seven ground terminals + thermal pad ensure low-inductance return paths for all signal domains |
Key Features
| Feature | Design Value |
|---|---|
| Independent USB3.x and USB2.0 switching domains | Eliminates timing conflicts: SEL1/PD and SEL2/OE operate asynchronously with no interlock requirement |
| 10.6 GHz -3dB bandwidth | Supports USB3.1 Gen2 (10 Gbps), PCIe Gen3 (8 GT/s), and DisplayPort 1.4 (8.1 Gbps) without signal conditioning |
| Low channel-to-channel skew (7 ps typ.) | Enables simultaneous switching of multiple high-speed lanes without inter-lane timing misalignment |
| 2 kV HBM ESD rating | Meets IEC 61000-4-2 Level 2 for system-level ESD robustness without external protection diodes |
| Lead-free, halogen-free, RoHS 3 compliant | Complies with EU Directive 2015/863/EU; Br+Cl <1500 ppm, Sb <1000 ppm - suitable for green manufacturing |
Applications
| USB-C Docking Station | Multi-Host Laptop Switch |
|---|---|
Use Scenario: A single laptop connects to dual upstream hosts (e.g., desktop PC + tablet) via USB-C while sharing peripherals. IC Role / Device Role / Timing Role: Acts as a bidirectional 1:2 mux for USB3.1 TX/RX and USB2.0 D+/D−, enabling host arbitration without protocol translation. Use Value: Maintains 10 Gbps link integrity across both ports using matched 10.6 GHz bandwidth and <7 ps channel skew - avoids re-timing or packet buffering. |
Use Scenario: Industrial test equipment routes USB3.0 signals from two instrument controllers to one DUT interface. IC Role / Device Role / Timing Role: Provides isolated signal path selection with Hi-Z disable (via PD/SEL1) to prevent backdrive during port switching. Use Value: Achieves -24.9 dB off-isolation at 2.5 GHz, preventing signal leakage between active and inactive controller paths. |
| PCIe/USB Combo Adapter | USB3.1 Gen2 Embedded Hub |
Use Scenario: A mini-PC motherboard shares one physical M.2 slot between PCIe x2 storage and USB3.1 Gen2 peripheral expansion. IC Role / Device Role / Timing Role: Routes differential lanes between M.2 edge connector and either PCIe or USB3.1 PHY, leveraging same 10.6 GHz bandwidth for both protocols. Use Value: Insertion loss of -0.9 dB at 2.5 GHz and -1.5 dB at 5 GHz ensures PCIe Gen2 (5 GT/s) and USB3.1 Gen2 (10 Gbps) meet jitter and eye-opening specs. |
Use Scenario: A tablet dock integrates USB3.1 Gen2 upstream port with dual downstream ports supporting 10 Gbps peripherals. IC Role / Device Role / Timing Role: Functions as a 1:2 demux for upstream RX/TX and 2:1 mux for downstream D+/D−, managed by embedded MCU GPIOs. Use Value: Low crosstalk (-31.1 dB @ 5 GHz) prevents interference between concurrent SS data streams on Port A and Port B. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB3.x/USB2.0 mux/demux applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3USB30E | Single 1:2 USB3.0 mux only; no USB2.0 switching; 6.5 GHz bandwidth; 32-pin QFN but no exposed thermal pad | Limited to USB3.0-only systems; lacks dual-domain control and USB2.0 support | Select when only USB3.0 routing is needed and thermal dissipation is less critical |
| PI3DBS16412 | 16-channel PCIe Gen3/USB3.0 switch; 8.5 GHz bandwidth; 48-pin TQFN; requires external level shifters for 1.8 V control logic | Higher channel count but higher power (1.2 W); not optimized for USB2.0 co-routing | Select for multi-lane PCIe/USB aggregation where USB2.0 is handled separately |
Compared with TS3USB30E and PI3DBS16412, the PI3USB32212ZLEX uniquely integrates native USB3.1 Gen2 and USB2.0 switching in one die with unified 3.3 V control, enabling compact dual-protocol hubs without external glue logic or voltage translators.
Availability
PI3USB32212ZLEX is available at Aetrix Electronics and suitable for USB-C docking stations, industrial test equipment, PCIe/USB combo adapters, and embedded USB3.1 Gen2 hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PI3USB32212ZLEX 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 integrated circuits, specializing in high-performance analog, logic, and connectivity solutions for computing, industrial, and consumer markets.
The PI3USB32212 belongs to Diodes' high-speed interface switch product line, designed specifically for USB3.1/3.0/2.0 signal routing in space-constrained, thermally demanding applications such as portable docks and embedded systems.
FAQ
What is the maximum data rate supported by PI3USB32212ZLEX?
The PI3USB32212ZLEX supports USB3.1 Gen2 at 10 Gbps (12.5 GT/s raw), validated by its 10.6 GHz -3 dB bandwidth and -1.5 dB insertion loss at 5 GHz. It also fully complies with USB3.0 (5 Gbps), USB2.0 High-Speed (480 Mbps), and interoperates with PCIe Gen3 (8 GT/s) and DisplayPort 1.4 (8.1 Gbps) due to matching bandwidth and impedance characteristics.
How does the dual-control architecture (SEL1/PD vs. SEL2/OE) improve system design?
SEL1 and PD manage USB3.x path selection and power-down independently from SEL2 and OE, which control USB2.0 switching. This eliminates timing dependencies between domains, allows asynchronous port changes, and enables selective shutdown (e.g., disabling USB3.x while keeping USB2.0 active for enumeration), reducing overall system power and simplifying firmware sequencing.
Can PI3USB32212ZLEX be used in automotive applications?
The PI3USB32212ZLEX is not AEC-Q100 qualified and is intended for commercial/industrial use. Diodes Incorporated offers automotive-grade variants (e.g., PI3USB32212Q) with PPAP capability, IATF 16949 manufacturing, and extended temperature screening - contact Diodes or Aetrix for qualified alternatives if automotive deployment is required.
What PCB layout considerations are critical for maintaining signal integrity?
Key layout practices include: (1) placing the exposed thermal pad directly under the IC and connecting it to a solid GND plane with ≥6 thermal vias; (2) routing all USB3.x differential pairs with 85 Ω characteristic impedance, length-matched within 5 mils; (3) isolating USB3.x and USB2.0 traces with GND guard traces; and (4) decoupling each VDD pin with a 100 nF X7R capacitor placed ≤2 mm from the pin.
PI3USB32212ZLEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- USB
- Multiplexer/Demultiplexer Circuit:
- 1:2
- Switch Circuit:
- SPDT
- Number of Channels:
- 2
- On-State Resistance (Max):
- 13Ohm
- Voltage - Supply, Single (V+):
- 2.97V ~ 3.63V
- Voltage - Supply, Dual (V±):
- -
- -3db Bandwidth:
- 10.6GHz
- Features:
- USB 2.0, USB 3.0
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TQFN (3x6)
PI3USB32212ZLEX FAQ
1.How can I place an order for PI3USB32212ZLEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3USB32212ZLEX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PI3USB32212ZLEX reliable?
The price and inventory of PI3USB32212ZLEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3USB32212ZLEX is usually 5 days.
3.What payment methods are accepted for PI3USB32212ZLEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3USB32212ZLEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3USB32212ZLEX?
PI3USB32212ZLEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3USB32212ZLEX order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PI3USB32212ZLEX?
For technical support, including PI3USB32212ZLEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3USB32212ZLEX requirements.
6.How does Aetrix verify that PI3USB32212ZLEX is sourced from the original manufacturer or authorized distributors?
All PI3USB32212ZLEX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PI3USB32212ZLEX meets industry standards.
7.What is the process for return or replacement of PI3USB32212ZLEX?
All PI3USB32212ZLEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3USB32212ZLEX, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PI3USB32212ZLEX part is unused and in its original packaging.
Return procedure for PI3USB32212ZLEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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