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Home > Products > Integrated Circuits (ICs) > Interface > Analog Switches - Special Purpose

Diodes Incorporated PI3USB30EZMEX

Name: PI3USB30EZMEX
Brand: Diodes Incorporated
SKU: PI3USB30EZMEX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PI3USB30EZMEX

Manufacturer:: Diodes Incorporated

Category:: Analog Switches - Special Purpose

Package:: 10-UFQFN

Datasheet:: PI3USB30EZMEX.pdf

Description:: USB2 SWITCH U-QFN1418-10 T&R 3K

Quantity:: RFQ Add To RFQ list

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Inventory:2,958

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Product details

Overview

PI3USB30EZMEX from Diodes Incorporated is a single-channel, bidirectional 2:1 USB 2.0 high-speed (480 Mbps) analog multiplexer/demultiplexer switch with V_bus short-to-5V tolerance, 4.3 Ω typical R_ON at 3.0 V, and 850 MHz –3 dB bandwidth. It routes differential USB data between host and dual downstream ports in portable electronics while maintaining signal integrity and offering overvoltage protection on all I/O pins.

For engineers reviewing the PI3USB30EZMEX datasheet, PI3USB30EZMEX pinout, PI3USB30EZMEX application, or PI3USB30EZMEX equivalent, key selection criteria include propagation delay (250 ps), off-isolation (–35 dB @ 240 MHz), crosstalk (–41 dB @ 240 MHz), logic-level flexibility (1.8/2.5/3.3 V control), and V_DD operating range (1.8–4.3 V).

Technical Context

The PI3USB30EZMEX implements a low-capacitance, low-resistance analog switch architecture optimized for USB 2.0 differential signaling. Its 6.0 pF channel capacitance and 4.3 Ω on-resistance minimize RC-induced distortion, enabling <250 ps propagation delay and preserving eye diagram integrity at 480 Mbps.

It supports break-before-make switching (7 ns), bit-to-bit skew ≤35 ps, and operates with V_DD = 0 V while blocking signal leakage to the supply rail. All I/O pins tolerate shorts to 5 V V_bus regardless of power state - a requirement for robust USB port protection in consumer devices.

Key Specifications

Parameter	Value and Actual Design Meaning
R_ON	4.3 Ω typical at V_DD = 3.0 V - ensures minimal insertion loss and voltage drop across switched USB D+/D– paths
–3 dB Bandwidth	850 MHz - fully supports USB 2.0 high-speed (480 Mbps) data rate with margin for signal integrity
Crosstalk	–41 dB @ 240 MHz - prevents interference between active and inactive channels during multiplexing
Off Isolation	–35 dB @ 240 MHz - suppresses signal coupling from enabled to disabled path, critical for noise-sensitive routing
Propagation Delay	250 ps - enables timing-critical USB 2.0 link layer handshaking without skew-induced errors
V_DD Range	1.8 V to 4.3 V ±10% - allows direct integration with diverse SoC I/O domains including 1.8 V, 2.5 V, and 3.3 V logic
ESD Protection	>8 kV HBM on data pins - meets USB 2.0 system-level ESD robustness requirements without external protection

Pinout & Package

PI3USB30EZMEX is housed in a 10-pin Ultra-thin Quad Flat No-Lead (UQFN) package, code ZM10, with 0.4 mm pitch and wettable flank terminals for automated optical inspection (AOI) and solder joint reliability.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 6, 7	D+A / D+B / D–B / D–A	Multiplexed source inputs - connect to two independent USB device ports (A and B) for 2:1 selection
3, 5	D+	USB differential data positive bus - connects to host-side D+ line
4	GND	Signal and power ground reference - required for low-noise USB signal return path
8	/OE	Active-low output enable - disables all switches when high, placing outputs in Hi-Z state
9	V_DD	Positive supply input - powers internal logic and switch core; supports 1.8–4.3 V operation
10	SEL	Channel select - selects D+/D–A (SEL = L) or D+/D–B (SEL = H) path

Key Features

Feature	Design Value
V_bus short tolerance	All I/O pins withstand 5 V ±10% short to V_bus with V_DD powered or unpowered - eliminates need for external overvoltage clamps
Low bit-to-bit skew	≤35 ps (opposite transitions) - maintains USB 2.0 differential timing budget across D+/D– pair
Logic-level flexible control	1.8 V/2.5 V/3.3 V compatible SEL and /OE inputs - simplifies interface to mixed-voltage SoCs and PMICs
Zero-power signal blocking	No signal leakage from D+/D– to V_DD when V_DD = 0 V - enables safe hot-plug detection and battery-backed USB routing
RoHS 3 & Green compliant	Lead-free, halogen-free (<900 ppm Br/Cl, <1000 ppm Sb), fully compliant per EU directives - meets global environmental compliance mandates

Applications

Smartphone USB Port Sharing

Digital Camera USB Switching

Use Scenario: A smartphone uses one USB connector to support both OTG host mode and peripheral mode, requiring dynamic routing between internal USB PHY and external accessories.

IC Role / Device Role / Timing Role: Bidirectional 2:1 multiplexer that selects between internal USB controller and external USB device under SEL control, preserving 480 Mbps signal fidelity.

Use Value: Enables single-connector dual-role operation without signal degradation or added ESD components, reducing BOM count and PCB area.

Use Scenario: A digital camera supports simultaneous connection to PC (for file transfer) and printer (for direct photo printing), using shared USB physical layer.

IC Role / Device Role / Timing Role: High-isolation analog switch that isolates D+/D– paths between two downstream peripherals to prevent cross-talk and bus contention.

Use Value: Delivers –35 dB off-isolation and –41 dB crosstalk to ensure reliable enumeration and data transfer on either selected port.

Notebook Docking Station

USB-C Alternate Mode Routing

Use Scenario: A notebook docking station routes USB 2.0 signals from host to multiple downstream ports (e.g., keyboard, mouse, flash drive) via shared upstream lane.

IC Role / Device Role / Timing Role: Low-R_ON, low-skew switch enabling clean signal fan-out with minimal propagation delay (250 ps) and no timing violation.

Use Value: Maintains USB 2.0 eye opening and jitter margin across all routed paths, supporting plug-and-play reliability.

Use Scenario: In USB-C implementations, USB 2.0 lanes are dynamically reassigned between legacy USB and alternate modes (e.g., DisplayPort), requiring robust reconfiguration.

IC Role / Device Role / Timing Role: V_bus-tolerant switch that remains functional during hot-insertion events and supports seamless mode switching without latch-up.

Use Value: Withstands 5 V V_bus shorts during cable insertion/removal and operates safely with V_DD = 0 V - critical for USB-C robustness.

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB 2.0 signal switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TS3USB30E by Texas Instruments	Higher R_ON (6.5 Ω typ), lower bandwidth (650 MHz), same 10-pin UQFN package	Limited eye margin at 480 Mbps due to reduced bandwidth and higher insertion loss	Preferred where cost sensitivity outweighs peak signal integrity requirements
FSUSB30MUX by ON Semiconductor	Lower ESD rating (4 kV HBM), no V_bus short tolerance, requires external protection diodes	Not suitable for direct V_bus-exposed USB ports without added protection circuitry	Applicable only in controlled environments with pre-protected USB lines

Compared with TS3USB30E and FSUSB30MUX, PI3USB30EZMEX delivers superior signal fidelity (850 MHz BW, 4.3 Ω R_ON) and integrated V_bus fault resilience - making it optimal for space-constrained, high-reliability USB 2.0 routing in smartphones, cameras, and docking stations.

Availability

PI3USB30EZMEX is available at Aetrix Electronics and suitable for smartphone USB port sharing, digital camera peripheral switching, and notebook docking station designs requiring stable component supply, consistent lead-free compliance, and long-term production continuity.

Supply support for PI3USB30EZMEX 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 ICs, specializing in high-performance analog, logic, and protection solutions for consumer, computing, and industrial markets.

The PI3USB30EZMEX belongs to Diodes' high-speed analog switch product line, engineered specifically for USB 2.0 signal routing in portable and embedded systems where low R_ON, high isolation, and V_bus fault tolerance are mandatory.

FAQ

Does PI3USB30EZMEX support USB 2.0 high-speed (480 Mbps) operation with full signal integrity?

Yes. The device features an 850 MHz –3 dB bandwidth, 250 ps propagation delay, and ≤35 ps bit-to-bit skew - all verified per USB 2.0 high-speed compliance test conditions. Eye diagram measurements at 480 Mbps confirm full eye opening with V_DD = 3.3 V and standard 50 Ω termination.

Can PI3USB30EZMEX operate safely when V_DD is unpowered but USB V_bus (5 V) is present?

Yes. All I/O pins tolerate a short to V_bus (5 V ±10%) whether V_DD is powered or at 0 V. When V_DD = 0 V, signals on D+/D– will not leak into the supply rail - a design feature validated in Diodes' characterization reports.

What is the maximum allowable control voltage on SEL and /OE pins?

The SEL and /OE pins accept logic voltages up to 4.3 V regardless of V_DD level - enabling direct interfacing with 3.3 V or 4.3 V GPIOs even when V_DD is 1.8 V. This is specified in the Recommended Operating Conditions table (V_CNTRL max = 4.3 V).

Is PI3USB30EZMEX qualified for automotive applications?

No. While the device meets industrial temperature range (–40°C to +85°C), it is not AEC-Q100 qualified. Diodes offers automotive-grade variants (e.g., PI3USB30AEZMEX) with PPAP documentation, IATF 16949 manufacturing, and extended qualification testing - contact Diodes directly for those part numbers.

PI3USB30EZMEX Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 10-UFQFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Applications:: USB

Multiplexer/Demultiplexer Circuit:: 2:1

Switch Circuit:: SPDT

Number of Channels:: 2

On-State Resistance (Max):: 6.5Ohm

Voltage - Supply, Single (V+):: 1.8V ~ 4.3V

Voltage - Supply, Dual (V±):: -

-3db Bandwidth:: 850MHz

Features:: Bi-Directional, USB 2.0

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-UQFN (1.8x1.4)

PI3USB30EZMEX FAQ

1.How can I place an order for PI3USB30EZMEX through Aetrix?

Please submit a Request for Quotation (RFQ) for PI3USB30EZMEX 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 PI3USB30EZMEX reliable?

The price and inventory of PI3USB30EZMEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3USB30EZMEX is usually 5 days.

3.What payment methods are accepted for PI3USB30EZMEX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3USB30EZMEX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PI3USB30EZMEX?

PI3USB30EZMEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PI3USB30EZMEX 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 PI3USB30EZMEX?

For technical support, including PI3USB30EZMEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3USB30EZMEX requirements.

6.How does Aetrix verify that PI3USB30EZMEX is sourced from the original manufacturer or authorized distributors?

All PI3USB30EZMEX 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 PI3USB30EZMEX meets industry standards.

7.What is the process for return or replacement of PI3USB30EZMEX?

All PI3USB30EZMEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3USB30EZMEX, 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 PI3USB30EZMEX part is unused and in its original packaging.

Return procedure for PI3USB30EZMEX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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