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Diodes Incorporated PI3USB102JXUCEX
- Part No.:
- PI3USB102JXUCEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Specialized
- Package:
- 10-XFQFN Exposed Pad
- Datasheet:
-
PI3USB102JXUCEX.pdf
- Description:
- IC INTERFACE SPECIALIZED QFN1412
- Quantity:
- Payment:
- Shipping:
Inventory:7,668
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Product details
Overview
PI3USB102JXUCEX from Diodes Incorporated is a single-differential-channel 2:1 USB 2.0 multiplexer/demultiplexer switch with 2.0Ω typical on-resistance, 1600MHz -3dB bandwidth, and integrated 5V overvoltage protection on Y+/Y- pins. It supports bidirectional high-speed (480Mbps), full-speed, and low-speed USB signaling in compact X2QFN-10 (1.4mm × 1.2mm) packaging for space-constrained mobile docking and USB-C port switching applications.
For engineers reviewing the PI3USB102JXUCEX datasheet, PI3USB102JXUCEX pinout, PI3USB102JXUCEX application, or PI3USB102JXUCEX equivalent, key selection criteria include propagation delay (250ps), off-isolation (-28dB @ 480Mbps), crosstalk (-29dB @ 480Mbps), channel capacitance (7.0pF max), and 1.8V logic-compatible control inputs (SEL/OE).
Technical Context
The PI3USB102JXUCEX implements a passive analog switch architecture with CMOS control logic, enabling bidirectional signal routing without protocol awareness. Its low RON (2.0Ω typ) and minimal channel capacitance (7.0pF max) preserve USB 2.0 eye diagrams across all speed modes, while the 1600MHz -3dB bandwidth ensures <1% signal attenuation at 240MHz fundamental frequency.
Overvoltage protection operates independently of VDD state: when Y+/Y- are shorted to 5V VBUS, M+/M- and D+/D- outputs clamp to ≤3.6V within 200ns (typ), preventing damage to downstream 3.3V USB PHYs. Control pins (SEL/OE) tolerate 1.8V logic levels and exhibit ±100nA leakage across VDD = 3.0–3.6V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RON | 2.0Ω typical - enables minimal voltage drop and insertion loss for 480Mbps differential signals |
| -3dB Bandwidth | 1600MHz - preserves USB 2.0 high-speed signal integrity up to 240MHz fundamental |
| Propagation Delay | 250ps - contributes negligible timing skew in host-peripheral signal paths |
| Off Isolation | -28dB @ 480Mbps - suppresses crosstalk between active and inactive signal paths |
| Crosstalk | -29dB @ 480Mbps - prevents interference between Y+/Y- and M+/M- or D+/D- channels |
| VDD Range | 3.0V to 3.6V - matches standard USB PHY supply rails and enables direct interface |
| Logic Compatibility | 1.8V input threshold on SEL/OE - allows direct connection to low-voltage GPIOs without level shifters |
Pinout & Package
Package: 10-pin X2QFN (XUC), 1.4mm × 1.2mm × 0.35mm, exposed thermal pad, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 Y+ | USB 2.0 differential data input/output | Primary bidirectional I/O with integrated 5V overvoltage clamping |
| 2 Y- | USB 2.0 differential data input/output | Paired with Y+; shares same overvoltage protection circuitry |
| 3 GND | Signal and power ground reference | Return path for switch conduction and ESD discharge |
| 4 M- | Multiplexed source input/output (Path A) | Connects to one USB device port; bidirectional with Y+/Y- |
| 5 M+ | Multiplexed source input/output (Path A) | Differential pair with M-; routed when SEL = low and OE = low |
| 6 D- | Multiplexed source input/output (Path B) | Connects to second USB device port; enabled when SEL = high |
| 7 D+ | Multiplexed source input/output (Path B) | Differential pair with D-; supports identical signal integrity as M+/M- |
| 8 OE | Output enable control | Active-low global enable; disables all paths when high |
| 9 VDD | Positive supply rail | 3.0–3.6V analog/digital supply; powers internal logic and switch FETs |
| 10 SEL | Path select control | High = route Y+/Y- ↔ D+/D-; Low = route Y+/Y- ↔ M+/M- |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 5V overvoltage protection | Clamps M+/M- and D+/D- to ≤3.6V within 200ns when Y+/Y- shorted to 5V VBUS - eliminates need for external TVS diodes |
| Bidirectional USB 2.0 signal routing | Supports full-speed (12Mbps), low-speed (1.5Mbps), and high-speed (480Mbps) traffic in either direction without protocol translation |
| Ultra-low bit-to-bit skew | 8ps typical skew between M+/M- or D+/D- outputs - maintains USB differential timing budget |
| Low power consumption | 30nA typical supply current - suitable for battery-powered portable devices with strict quiescent current limits |
| ESD robustness | 8kV HBM on all I/O pins - meets IEC 61000-4-2 Level 4 for system-level ESD immunity |
Applications
| USB-C Docking Stations | Smartphone USB Switching |
|---|---|
|
Use Scenario: Routing USB 2.0 data between host controller and multiple peripherals (HDMI adapter, storage, Ethernet) via single USB-C port. IC Role / Device Role / Timing Role: 2:1 mux/demux switch selecting between two downstream device paths under GPIO control. Use Value: Enables dynamic reconfiguration of USB data lanes without firmware intervention; 250ps propagation delay avoids timing violations in high-speed mode. |
Use Scenario: Sharing a single USB 2.0 PHY between OTG host mode and peripheral mode in dual-role smartphones. IC Role / Device Role / Timing Role: Bidirectional signal switch isolating host and peripheral transceivers during mode transitions. Use Value: Prevents signal contention during role swap; 5V overvoltage protection safeguards PHY when connected to unregulated chargers. |
| Notebook Internal Port Expansion | Industrial USB Hub Controllers |
|
Use Scenario: Expanding limited USB 2.0 controller ports to support internal modules (SIM card reader, fingerprint sensor, WWAN). IC Role / Device Role / Timing Role: Low-capacitance analog switch minimizing insertion loss on FR4 traces between SoC and module connectors. Use Value: 7.0pF max channel capacitance preserves signal rise/fall times; 1600MHz bandwidth ensures compliance with USB 2.0 eye mask. |
Use Scenario: Isolating upstream USB host port from downstream device ports in ruggedized industrial hubs operating in harsh EMI environments. IC Role / Device Role / Timing Role: Signal path selector with -28dB off-isolation suppressing noise coupling between ports. Use Value: -29dB crosstalk performance prevents data corruption during concurrent high-speed transfers across adjacent channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 2.0 switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3USB30E | Higher RON (5Ω typ), no integrated 5V overvoltage protection, 10-pin VSSOP package (3mm × 3mm) | Requires external TVS diodes for VBUS shorts; larger footprint increases PCB area by 4.5× | Select when cost sensitivity outweighs board space and protection integration requirements |
| MAX14535E | Lower bandwidth (1200MHz), higher off-isolation (-32dB), 12-pin WLP package (1.6mm × 1.6mm) | Marginally reduced signal fidelity at 480Mbps; tighter layout constraints due to ball pitch | Select when maximum off-isolation is prioritized over bandwidth and ease of soldering |
Compared with TS3USB30E and MAX14535E, the PI3USB102JXUCEX delivers superior bandwidth (1600MHz vs. ≤1200MHz), integrated overvoltage protection eliminating external components, and the smallest footprint (1.4mm × 1.2mm), making it optimal for ultra-compact USB-C designs requiring robust 5V fault tolerance.
Availability
PI3USB102JXUCEX is available at Aetrix Electronics and suitable for USB-C docking stations, smartphone OTG switching, and notebook internal port expansion requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for PI3USB102JXUCEX 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 power management solutions for consumer, industrial, and computing markets.
The PI3USB102JXUCEX belongs to Diodes' high-speed analog switch product line, engineered specifically for USB 2.0 signal routing in space-constrained, high-reliability portable and docking applications with integrated overvoltage protection.
FAQ
Does PI3USB102JXUCEX support USB 2.0 high-speed (480Mbps) operation?
Yes, the PI3USB102JXUCEX is fully compliant with USB 2.0 high-speed operation. Its 1600MHz -3dB bandwidth, 250ps propagation delay, and -28dB off-isolation at 480Mbps ensure signal integrity meets USB-IF eye diagram specifications. Measured crosstalk of -29dB at 480Mbps further validates its suitability for high-speed differential routing without protocol degradation.
What is the overvoltage protection behavior when Y+/Y- are shorted to 5V VBUS?
When Y+/Y- are shorted to 5V VBUS, the PI3USB102JXUCEX clamps M+/M- and D+/D- outputs to ≤3.6V within 200ns (typical), regardless of VDD state (powered or unpowered). This dynamic protection is implemented via internal circuitry and does not require external components, safeguarding downstream 3.3V USB PHYs from overvoltage damage.
Can SEL and OE be driven directly from a 1.8V GPIO without level shifting?
Yes, SEL and OE inputs are specified for 1.8V logic compatibility: VIH is guaranteed ≥1.4V and VIL ≤0.6V across VDD = 3.0–3.6V. With typical input leakage of ±100nA, these pins can be driven directly from 1.8V microcontroller GPIOs without external level translators or pull-up resistors.
Is the PI3USB102JXUCEX suitable for automotive applications?
The PI3USB102JXUCEX is not AEC-Q100 qualified. While it operates from -20°C to +100°C and meets industrial reliability standards, Diodes Incorporated explicitly states that automotive-grade versions require PPAP capability and IATF 16949 manufacturing - features not included in this commercial-grade XUCEX variant. For automotive use, contact Diodes for qualified alternatives.
PI3USB102JXUCEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 10-XFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Notebook Computer
- Interface:
- USB 2.0
- Voltage - Supply:
- 3V ~ 3.6V
- Supplier Device Package:
- 10-X2QFN
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
PI3USB102JXUCEX FAQ
1.How can I place an order for PI3USB102JXUCEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3USB102JXUCEX 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 PI3USB102JXUCEX reliable?
The price and inventory of PI3USB102JXUCEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3USB102JXUCEX is usually 5 days.
3.What payment methods are accepted for PI3USB102JXUCEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3USB102JXUCEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3USB102JXUCEX?
PI3USB102JXUCEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3USB102JXUCEX 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 PI3USB102JXUCEX?
For technical support, including PI3USB102JXUCEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3USB102JXUCEX requirements.
6.How does Aetrix verify that PI3USB102JXUCEX is sourced from the original manufacturer or authorized distributors?
All PI3USB102JXUCEX 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 PI3USB102JXUCEX meets industry standards.
7.What is the process for return or replacement of PI3USB102JXUCEX?
All PI3USB102JXUCEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3USB102JXUCEX, 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 PI3USB102JXUCEX part is unused and in its original packaging.
Return procedure for PI3USB102JXUCEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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