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Renesas ISL54233IRTZ-T7A
- Part No.:
- ISL54233IRTZ-T7A
- Manufacturer:
- Renesas
- Package:
- 12-WFQFN Exposed Pad
- Datasheet:
-
ISL54233IRTZ-T7A.pdf
- Description:
- IC SWITCH SP3T X 2 15OHM 12TQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ISL54233IRTZ-T7A from Renesas Electronics is a wideband differential 3:1 multiplexer IC designed for high-speed signal routing in portable media devices. It supports USB 2.0 high-speed (480Mbps) and full-speed (12Mbps) data, digital video, and UART signals across three differential input pairs (1D±/2D±/3D±), with rail-to-rail analog swing, -2V COM pin tolerance, and 1.6GHz -3dB bandwidth. It operates from a single 2.7V–4.6V supply and is used in headphone-jack-based multi-protocol switching in MP4 players and smartphones.
For engineers reviewing the ISL54233IRTZ-T7A datasheet, ISL54233IRTZ-T7A pinout, ISL54233IRTZ-T7A application, or ISL54233IRTZ-T7A equivalent, key selection criteria include differential channel count (3× SPDT), ON-resistance matching (≤0.55Ω), OFF-isolation (-32dB @240MHz), power-off protection, and compatibility with USB 2.0 short-circuit requirements without external components.
Technical Context
The ISL54233IRTZ-T7A implements dual independent SP3T analog switches-six bidirectional 6Ω channels-configured as three differential pairs feeding a common COM± output. Its CMOS architecture enables low ON-capacitance (2.8pF @240MHz) and high bandwidth while maintaining break-before-make timing (30ns) and low skew (75ps) to preserve signal integrity for 480Mbps USB eye patterns.
Control logic uses two CMOS-compatible inputs (C0/C1) with internal 4MΩ pull-downs, supporting logic levels up to 5.25V independent of VDD. The device enters All-Switches-OFF mode when both C0 and C1 are low, enabling wired-OR audio integration at COM pins with -2V negative swing capability and 5.5V overvoltage tolerance on all I/O pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (-3dB) | 1.6GHz - preserves rise/fall times and eye opening for 480Mbps USB 2.0 signals |
| ON-resistance (rON) | 6Ω typical @2.7V - ensures minimal insertion loss and voltage drop across differential paths |
| ON-resistance matching (ΔrON) | ≤0.55Ω max - maintains amplitude balance between D+ and D− within each channel |
| OFF-isolation | -32dB @240MHz - suppresses crosstalk between inactive and active differential channels |
| Supply range | 2.7V to 4.6V - compatible with Li-ion battery and LDO rails in portable systems |
| COM pin voltage range | -2V to 5.5V - enables direct connection of audio codecs and fault-tolerant USB VBUS handling |
| Power-off protection | ICOMx ≤1µA @VDD=0V - isolates COM side from D± during system power-down |
Pinout & Package
The ISL54233IRTZ-T7A is packaged in a 12-lead 3mm×3mm TQFN (L12.3x3A) with exposed thermal pad. Pin 1 is located at top-left corner adjacent to index area; thermal pad must be tied to GND or left floating per layout requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (3D+) | Differential input #3 positive | USB/DV source 3 high-speed data path; bidirectional, ±40mA continuous |
| 2 (2D-) | Differential input #2 negative | Paired with 2D+; matched rON ensures common-mode rejection |
| 3 (2D+) | Differential input #2 positive | USB/DV source 2 high-speed data path; supports 480Mbps with <210ps total jitter |
| 4 (1D-) | Differential input #1 negative | Paired with 1D+; low 2.8pF ON capacitance minimizes edge distortion |
| 5 (1D+) | Differential input #1 positive | USB/DV source 1 high-speed data path; rail-to-rail swing passes UART/FS-USB |
| 6 (GND) | Ground reference | Primary return path for analog and digital circuitry; connects to thermal pad |
| 7 (COM+) | Common output positive | Shared differential output node; accepts -2V to VDD +0.3V signals |
| 8 (COM-) | Common output negative | Paired with COM+; differential termination enables 50Ω system impedance match |
| 9 (C1) | Digital control input MSB | Logic-selects channel: C1=0/C0=1 → USB/DV#1; internal 4MΩ pull-down |
| 10 (C0) | Digital control input LSB | Logic-selects channel: C1=1/C0=0 → USB/DV#2; tolerant to 5.25V regardless of VDD |
| 11 (VDD) | Positive supply | Single 2.7–4.6V rail powers analog switches and logic; requires local 0.01µF decoupling |
| 12 (3D-) | Differential input #3 negative | Paired with 3D+; identical electrical specs to 1D±/2D± for consistent channel performance |
Key Features
| Feature | Design Value |
|---|---|
| USB 2.0 compliance | Meets short-circuit requirements without external protection components |
| Rail-to-rail analog swing | Supports full-speed USB (12Mbps) and UART signals across entire VDD range |
| Negative COM swing capability | -2V minimum on COM± enables wired-OR audio integration in all-OFF mode |
| Power-off protection | Isolates COM side from D± when VDD = 0V, limiting leakage to ≤1µA |
| Overvoltage tolerance | All I/O pins withstand 5.5V regardless of VDD state, preventing latch-up during VBUS faults |
Applications
| USB 2.0 Multiplexing | Digital Video Switching |
|---|---|
Use Scenario: Routing USB 2.0 high-speed (480Mbps) data from multiple peripherals (e.g., camera, storage, debug interface) through a shared micro-USB or USB-C port in smartphones. IC Role / Device Role / Timing Role: Differential 3:1 multiplexer selecting one of three USB PHY outputs to a common connector, preserving signal integrity via 1.6GHz bandwidth and <210ps jitter. Use Value: Eliminates need for separate connectors or external ESD/short-circuit protection, reducing BOM cost and PCB area in space-constrained handsets. | Use Scenario: Switching between HDMI, MHL, or DisplayPort video streams from different SoCs or sensors into a single display interface in tablets or portable projectors. IC Role / Device Role / Timing Role: High-bandwidth differential mux delivering <1.6GHz passband to maintain pixel clock fidelity and minimize eye closure in 720p/1080p video links. Use Value: Enables dynamic display source selection without signal degradation, supporting seamless video mirroring and multi-screen use cases. |
| UART/Full-Speed USB Sharing | Wired-OR Audio Integration |
Use Scenario: Consolidating UART debug, firmware update, and full-speed USB (12Mbps) communication onto one physical port in wearable devices or IoT edge nodes. IC Role / Device Role / Timing Role: Rail-to-rail analog switch supporting DC-coupled UART logic levels and FS-USB signaling with <250ps propagation delay variation. Use Value: Reduces connector count and simplifies mechanical design while maintaining reliable serial communication across operating modes. | Use Scenario: Combining stereo audio output from baseband processor and application processor into shared headphone jack in dual-SoC mobile platforms. IC Role / Device Role / Timing Role: All-switches-OFF mode enables passive wired-OR summation at COM± pins with -2V negative swing support for AC-coupled audio codecs. Use Value: Avoids need for active audio summing amplifiers or additional analog switches, lowering power and component count in audio subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3USB30E | Single-supply 3:1 USB 2.0 mux; 6Ω rON, -32dB isolation, but only 1.2GHz bandwidth and no -2V COM swing | Lacks negative COM capability; not suitable for wired-OR audio integration | Preferred where USB-only routing suffices and board space allows larger 14-pin TSSOP package |
| MAX4989ETE+ | 3:1 differential mux with 1.5GHz bandwidth and 5.5V overvoltage tolerance, but higher 8.5Ω rON and no integrated pull-downs on control pins | Requires external biasing for C0/C1; less robust for battery-powered systems with floating controls | Selected when higher ESD rating (±15kV HBM) is prioritized over ultra-low rON matching |
Compared with TS3USB30E and MAX4989ETE+, the ISL54233IRTZ-T7A uniquely combines -2V COM swing, 1.6GHz bandwidth, and internal 4MΩ pull-downs-enabling compact, low-component-count designs for multi-protocol portable audio/video interfaces.
Availability
ISL54233IRTZ-T7A is available at Aetrix Electronics and suitable for MP4 players, smartphones, and tablet designs requiring stable component supply, USB 2.0 signal integrity, and differential video routing in ultra-thin form factors.
Supply support for ISL54233IRTZ-T7A 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
Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and consumer applications.
The ISL54233IRTZ-T7A belongs to Renesas' high-speed analog switch product line, engineered specifically for multi-protocol signal consolidation in battery-powered personal media devices with stringent size and power constraints.
FAQ
What is the maximum data rate supported by the ISL54233IRTZ-T7A?
The ISL54233IRTZ-T7A supports USB 2.0 high-speed data rates up to 480Mbps, validated by eye pattern testing (Figures 15–16 in FN7918). Its 1.6GHz -3dB bandwidth and <210ps total jitter ensure compliance with USB 2.0 signal quality specifications across all three differential channels.
Does the ISL54233IRTZ-T7A require external pull-up or pull-down resistors on C0 and C1 pins?
No. The ISL54233IRTZ-T7A integrates 4MΩ pull-down resistors on both C0 and C1 pins, allowing them to be left floating for logic-low default states. This eliminates external components and simplifies control interface design in battery-powered systems where pin count and BOM cost are critical.
Can the ISL54233IRTZ-T7A safely interface with USB VBUS (5V) during power-off conditions?
Yes. When VDD = 0V, the ISL54233IRTZ-T7A provides power-off protection: COM± and all D± pins tolerate up to 5.5V, with leakage current limited to ≤1µA on COMx and ≤5µA on D± pins. This prevents back-powering or damage during VBUS fault events in unpowered systems.
What is the purpose of the "All Switches OFF" mode in the ISL54233IRTZ-T7A?
The All Switches OFF mode (C0 = C1 = logic low) disables all six analog switches, placing 1D±/2D±/3D± in high-impedance state. This allows external audio codecs to drive COM± directly-even with -2V negative swings-enabling wired-OR audio summation without additional active circuitry.
Which package variant does the ISL54233IRTZ-T7A use, and what are its thermal characteristics?
The ISL54233IRTZ-T7A uses the 12-lead 3mm×3mm TQFN package (L12.3x3A) with θJA = 58°C/W and θJC = 1.0°C/W. Its exposed thermal pad must be soldered to a GND plane for optimal heat dissipation in high-density portable PCB layouts.
ISL54233IRTZ-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SP3T
- Multiplexer/Demultiplexer Circuit:
- 3:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 15Ohm
- Channel-to-Channel Matching (ΔRon):
- 70mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 4.6V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- 1.6GHz
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 3pF
- Current - Leakage (IS(off)) (Max):
- 15nA
- Crosstalk:
- -36dB @ 240MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-TQFN (3x3)
ISL54233IRTZ-T7A FAQ
1.How can I place an order for ISL54233IRTZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL54233IRTZ-T7A 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 ISL54233IRTZ-T7A reliable?
The price and inventory of ISL54233IRTZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL54233IRTZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL54233IRTZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL54233IRTZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL54233IRTZ-T7A?
ISL54233IRTZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL54233IRTZ-T7A 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 ISL54233IRTZ-T7A?
For technical support, including ISL54233IRTZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL54233IRTZ-T7A requirements.
6.How does Aetrix verify that ISL54233IRTZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL54233IRTZ-T7A 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 ISL54233IRTZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL54233IRTZ-T7A?
All ISL54233IRTZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL54233IRTZ-T7A, 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 ISL54233IRTZ-T7A part is unused and in its original packaging.
Return procedure for ISL54233IRTZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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