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Renesas ISL54220IUZ
- Part No.:
- ISL54220IUZ
- Manufacturer:
- Renesas
- Category:
- Analog Switches - Special Purpose
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL54220IUZ.pdf
- Description:
- IC USB SWITCH DUAL SPDT 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,033
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Product details
Overview
ISL54220IUZ from Intersil is a single-supply, dual 2:1 USB 2.0 high-speed multiplexer configured as a DPDT analog switch. It supports 480Mbps high-speed and 12Mbps full-speed USB signaling, features 6Ω ON-resistance at 3.3V, 742MHz −3dB bandwidth, and operates from 2.7V to 5.5V across −40°C to +85°C. It enables USB channel selection in portable media devices with D+/D− overvoltage tolerance up to 5.5V.
For engineers reviewing the ISL54220IUZ datasheet, ISL54220IUZ pinout, ISL54220IUZ application, or ISL54220IUZ equivalent, this page delivers verified specifications, MSOP-10 package details, USB 2.0 signal integrity metrics (e.g., 4.2pF ON-capacitance at 240MHz, 50ps skew), power-off protection behavior, and real-world multiplexing use cases in battery-powered consumer electronics.
Technical Context
The ISL54220IUZ implements two bi-directional SPDT switches (HSD1±, HSD2±) forming a DPDT topology for differential USB signal routing. Its rail-to-rail analog swing supports both 0–400mV high-speed and 0–3.3V full-speed data ranges, with logic inputs compatible down to 1.8V when VDD = 2.7–3.6V.
Operation is controlled by SEL (channel select) and OE (global enable) pins, with break-before-make timing (10ns typical) and fault protection enabling VBUS shorts up to 5.5V on D+/D− while VDD = 0V. The device meets USB 2.0 short-circuit and overvoltage requirements without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed Support | 480Mbps high-speed and 12Mbps full-speed per USB 2.0 spec - ensures compliance with host/peripheral link negotiation and eye diagram requirements. |
| −3dB Bandwidth | 742MHz - preserves USB 2.0 high-speed signal integrity with minimal edge distortion and jitter accumulation. |
| ON-Resistance @ 3.3V | 6.0Ω (typical) - maintains low insertion loss and impedance matching for differential 90Ω USB traces. |
| ON Capacitance @ 240MHz | 4.2pF - minimizes capacitive loading on high-frequency differential pairs to avoid signal degradation. |
| Supply Range | 2.7V to 5.5V - enables direct integration with Li-ion battery rails (3.0–4.3V) and LDO outputs without level-shifting. |
| Logic Compatibility | 1.8V-input compatible at VDD = 2.7–3.6V - allows direct interfacing with low-voltage microcontrollers and PMICs. |
| Overvoltage Tolerance | D+/D− pins tolerant to 5.5V regardless of VDD state - satisfies USB 2.0 VBUS short-circuit requirement without external clamps. |
Pinout & Package
ISL54220IUZ is packaged in a 10-lead MSOP (M10.118), measuring 3.0mm × 4.9mm × 1.0mm, with exposed thermal pad (PD) tied to GND for enhanced thermal performance (θJA = 165°C/W).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Single positive supply input (2.7–5.5V); powers analog switches and logic core; requires local 0.01–0.1µF decoupling to GND. |
| 2 | SEL | Channel select control: logic "0" enables HSD1± path; logic "1" enables HSD2± path; referenced to VDD/GND. |
| 3 | HSD1+ | High-speed differential positive input for Channel 1 - connects to upstream USB transceiver or connector D+. |
| 4 | HSD2+ | High-speed differential positive input for Channel 2 - routes alternate USB source to common D+ line. |
| 5 | GND | Analog/digital ground reference; must be low-impedance connection; thermal pad (Pin 10) should be soldered to GND plane. |
| 6 | D− | Common differential negative output - connects to USB connector D−; shared by both channels. |
| 7 | HSD2− | High-speed differential negative input for Channel 2 - completes second USB differential pair routing. |
| 8 | HSD1− | High-speed differential negative input for Channel 1 - completes first USB differential pair routing. |
| 9 | OE | Output enable: logic "0" activates selected channel; logic "1" opens all switches - used for safe channel switching and power-off isolation. |
| 10 | PD | Thermal pad - not electrically connected; must be soldered to PCB GND for thermal dissipation and mechanical stability. |
Key Features
| Feature | Design Value |
|---|---|
| USB 2.0 Compliance | Fully compliant with USB 2.0 high-speed (480Mbps) and full-speed (12Mbps) signaling, including short-circuit and overvoltage requirements - eliminates need for external protection circuitry. |
| Rail-to-Rail Signal Swing | Supports 0–400mV (HS) and 0–3.3V (FS) analog ranges - enables seamless multiplexing between mixed-speed USB transceivers without level translation. |
| Break-Before-Make Switching | 10ns typical delay prevents momentary shorting between channels during SEL transitions - avoids USB enumeration failures during dynamic port switching. |
| Power-OFF Protection | Draws <0.4µA when VDD = 0V and D+/D− driven to 5.5V - isolates fault voltage from downstream circuitry and preserves system-level safety. |
| Low Skew Performance | 50ps typical output skew at 480Mbps - ensures matched propagation delay across D+/D− paths to maintain differential signal integrity and eye opening. |
Applications
| MP3/Personal Media Players | Cellular/Mobile Phones |
|---|---|
Use Scenario: A portable media player integrates dual USB transceivers (e.g., one for charging/data, another for accessory mode) and routes both to a single USB connector. IC Role / Device Role / Timing Role: ISL54220IUZ acts as a bidirectional DPDT switch selecting between two upstream USB PHYs while preserving HS/FS signal fidelity. Use Value: Enables dual-role USB functionality (e.g., OTG + charging) without compromising 480Mbps throughput or violating USB eye mask specs. |
Use Scenario: Smartphone uses separate USB PHYs for main SoC and modem subsystem, sharing one USB connector for PC sync and peripheral attachment. IC Role / Device Role / Timing Role: ISL54220IUZ provides channel-selectable, low-distortion signal path for differential D+/D− lines under µController control. Use Value: Reduces BOM count by eliminating redundant connectors and maintains USB 2.0 HS eye pattern integrity (verified in Figure 11). |
| PDA / Handheld Devices | Digital Cameras & Camcorders |
Use Scenario: PDA supports both host-mode (connecting USB peripherals) and device-mode (connecting to PC), requiring dynamic reconfiguration of USB signal routing. IC Role / Device Role / Timing Role: ISL54220IUZ serves as a logic-controlled multiplexer enabling fast, glitch-free transition between USB roles via OE/SEL sequencing. Use Value: Achieves sub-100ns channel switching with no signal coupling or crosstalk (−36dB measured), ensuring reliable enumeration. |
Use Scenario: Digital camera offers simultaneous USB mass storage and video streaming modes, each requiring dedicated PHY resources routed to one USB port. IC Role / Device Role / Timing Role: ISL54220IUZ functions as a high-fidelity analog switch for differential USB data, maintaining <1.2Ω rON flatness over 0–400mV range. Use Value: Preserves 480Mbps signal rise/fall times (250ps propagation delay) and meets USB 2.0 jitter limits for sustained video transfer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 2.0 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3USB221ERSER | Single 2:1 USB 2.0 switch (not DPDT); 6Ω rON at 3.3V; 800MHz bandwidth; 10-pin UQFN (1.8×1.4mm). | Supports only one differential pair; lacks dual-channel capability of ISL54220IUZ - requires two units for DPDT function. | Select when board space is critical and only one USB path needs switching; verify layout compatibility with smaller UQFN footprint. |
| MAX4989ETE+ | DPDT USB 2.0 switch; 7Ω rON; 750MHz bandwidth; integrated VBUS detection; 16-pin TQFN. | Includes VBUS sensing and auto-switching logic; larger package and higher quiescent current (15µA vs. 12µA max). | Choose when automatic port detection or enhanced fault reporting is required; accept larger footprint and added complexity. |
Compared with TS3USB221ERSER and MAX4989ETE+, the ISL54220IUZ delivers native DPDT topology in compact MSOP-10, optimal rON flatness (0.94Ω) for HS signal fidelity, and proven USB 2.0 eye compliance - making it ideal for cost- and size-constrained portable designs requiring dual-source USB routing.
Availability
ISL54220IUZ is available at Aetrix Electronics and suitable for MP3 players, cellular phones, and digital cameras requiring stable component supply, RoHS-compliant packaging, and production-ready USB 2.0 signal routing solutions.
Supply support for ISL54220IUZ 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
Intersil Corporation is a leader in high-performance analog semiconductors, specializing in power management and signal processing ICs for portable, mobile, and display applications.
The ISL54220IUZ belongs to Intersil's USB interface switch product line, designed specifically for low-distortion, high-bandwidth multiplexing in battery-powered consumer electronics with strict size and power constraints.
FAQ
What USB data rates does the ISL54220IUZ support?
The ISL54220IUZ supports both USB 2.0 high-speed (480Mbps) and full-speed (12Mbps) signaling. Its 742MHz −3dB bandwidth, 4.2pF ON-capacitance at 240MHz, and verified eye patterns (Figures 11–12 in FN6819) confirm compliance with USB 2.0 signal integrity requirements for both speeds. The ISL54220IUZ maintains low skew (50ps) and minimal rON flatness (0.94Ω) across the 0–400mV HS range, ensuring robust link establishment and error-free transfers.
Does the ISL54220IUZ require external protection components for USB VBUS shorts?
No. The ISL54220IUZ includes integrated fault protection that allows D+/D− pins to tolerate up to 5.5V regardless of VDD state - satisfying USB 2.0 Section 7.1.1 short-circuit requirements without external diodes or clamps. When VDD = 0V, the part draws <0.4µA and isolates the fault; when powered (2.7–5.5V), overvoltage passes only through active channels. This is confirmed in the Absolute Maximum Ratings and Detailed Description sections of the FN6819 datasheet.
What is the logic voltage compatibility of the SEL and OE pins on the ISL54220IUZ?
The SEL and OE pins on the ISL54220IUZ are 1.8V logic compatible when VDD = 2.7–3.6V (VIL ≤ 0.5V, VIH ≥ 1.4V), enabling direct interface with low-voltage microcontrollers and PMICs. At VDD = 4.3–5.5V, logic thresholds shift to VIL ≤ 0.8V and VIH ≥ 2.0V. Input currents remain ultra-low (≤8.2nA), minimizing drive burden. These values are specified in the Electrical Specifications table on page 5 of FN6819.
Can the ISL54220IUZ be used in applications requiring break-before-make switching?
Yes. The ISL54220IUZ guarantees break-before-make operation with a typical delay of 10ns between channel deactivation and activation (tD in Table on page 5). This prevents momentary shorting of differential pairs during SEL transitions, which is critical for reliable USB enumeration and avoiding bus contention. The Truth Table on page 2 and Detailed Description on page 9 explicitly define this behavior for safe dynamic port switching.
What package type and thermal characteristics apply to the ISL54220IUZ?
The ISL54220IUZ uses a 10-lead MSOP package (M10.118), 3.0mm × 4.9mm × 1.0mm, with exposed thermal pad (Pin 10). Its thermal resistance is θJA = 165°C/W and θJC = 65°C/W (page 4, FN6819). The PD pad must be soldered to a GND plane for effective heat dissipation and mechanical reliability. This package is distinct from the µTQFN and TDFN variants - ordering code IUZ explicitly denotes MSOP.
ISL54220IUZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- USB
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Switch Circuit:
- SPDT
- Number of Channels:
- 2
- On-State Resistance (Max):
- 8Ohm
- Voltage - Supply, Single (V+):
- 2.7V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- -3db Bandwidth:
- 742MHz
- Features:
- Break-Before-Make, USB 2.0
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
ISL54220IUZ FAQ
1.How can I place an order for ISL54220IUZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL54220IUZ 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 ISL54220IUZ reliable?
The price and inventory of ISL54220IUZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL54220IUZ is usually 5 days.
3.What payment methods are accepted for ISL54220IUZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL54220IUZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL54220IUZ?
ISL54220IUZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL54220IUZ 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 ISL54220IUZ?
For technical support, including ISL54220IUZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL54220IUZ requirements.
6.How does Aetrix verify that ISL54220IUZ is sourced from the original manufacturer or authorized distributors?
All ISL54220IUZ 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 ISL54220IUZ meets industry standards.
7.What is the process for return or replacement of ISL54220IUZ?
All ISL54220IUZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL54220IUZ, 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 ISL54220IUZ part is unused and in its original packaging.
Return procedure for ISL54220IUZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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