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Renesas ISL3035EIRUZ-T
- Part No.:
- ISL3035EIRUZ-T
- Manufacturer:
- Renesas
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
ISL3035EIRUZ-T.pdf
- Description:
- IC TRANSLATOR BIDIR 16UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,522
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Product details
Overview
ISL3035EIRUZ-T from Renesas Electronics is a 6-channel bidirectional auto-direction sensing logic level translator operating at up to 100Mbps, supporting VL = +1.35V to +3.2V and VCC = +2.2V to +3.6V supplies, with ±15kV IEC61000-4-2 ESD protection on all I/O pins, and housed in a 16-lead UTQFN (2.6mm × 1.8mm) package for space-constrained multi-voltage interfaces such as 1.8V microcontroller-to-3.3V peripheral interconnects.
For engineers reviewing the ISL3035EIRUZ-T datasheet, ISL3035EIRUZ-T pinout, ISL3035EIRUZ-T application, or ISL3035EIRUZ-T equivalent, key selection considerations include its auto-direction sensing architecture eliminating external direction control, guaranteed 100Mbps data rate at VL ≥ 1.62V, integrated 30µA pull-up current sources enabling open-drain or push-pull driver compatibility, and dual-supply shutdown behavior triggered by EN low or VCC < VL.
Technical Context
The ISL3035EIRUZ-T implements a channel-level auto-direction sensing mechanism using high/low threshold detectors and one-shot controlled large-swing accelerator drivers that actively drive outputs to rail or GND for ~3–4ns before reverting to weak hold mode via NMOS pass transistors and internal current sources. This architecture enables bit-by-bit direction resolution without dedicated control lines.
Each of the six independent channels supports bidirectional translation between VL-referenced I/OVLx and VCC-referenced I/OVCCx pins, with input thresholds tracking supply percentages (e.g., VIHL ≈ 60–70% of VL), output VOH levels tracking respective supplies (VOHL = 2/3 VL, VOHC = 2/3 VCC), and propagation delays under 7.5ns (tPDVCC) and 6.5ns (tPDVL) with sub-1.3ns channel-to-channel skew.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 100Mbps at VL ≥ 1.62V - ensures full-speed operation for high-throughput serial buses like I²C fast-mode plus or GPIO-based protocols. |
| Supply Range (VL) | +1.35V to +3.2V - supports direct interface with 1.5V, 1.8V, and 2.5V logic domains including modern low-power MCUs and ASICs. |
| Supply Range (VCC) | +2.2V to +3.6V - compatible with 2.5V and 3.3V system rails, enabling translation to legacy or higher-voltage peripherals. |
| ESD Protection | ±15kV IEC61000-4-2 air-gap on all I/O and EN pins - eliminates need for external TVS diodes in exposed port applications like memory card slots. |
| Propagation Delay | tPDVL ≤ 6.5ns, tPDVCC ≤ 7.5ns - enables timing-critical interfaces with tight setup/hold margins, such as SPI clocked at >50MHz. |
| Shutdown Current | ICCSD ≤ 2.5µA, ILSD ≤ 4µA - reduces system standby power in battery-operated devices when EN is asserted low or VCC drops below VL. |
| Input Thresholds | VIHL ≈ 60–70% VL, VIHC ≈ 55–60% VCC - provides robust noise immunity across voltage combinations without external biasing. |
Pinout & Package
ISL3035EIRUZ-T is packaged in a 16-lead ultra-thin QFN (UTQFN) measuring 2.6mm × 1.8mm with exposed thermal pad, RoHS-compliant NiPdAu (e4) termination, and moisture sensitivity level (MSL) 1 rating per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 5, 8, 12, 15 (I/OVL1–I/OVL6) |
VL-side bidirectional I/O | Connects to low-voltage domain (e.g., 1.8V MCU GPIO); internally pulled up to VL via 30µA source; ESD-protected to ±15kV. |
| 2, 3, 6, 7, 13, 14 (I/OVCC1–I/OVCC6) |
VCC-side bidirectional I/O | Connects to high-voltage domain (e.g., 3.3V sensor interface); pulled up to VCC via 30µA source; ±15kV IEC61000-4-2 rated. |
| 9 (GND) | Ground reference | Primary return path for both supplies; must connect directly to low-impedance PCB ground plane to maintain ESD integrity and signal integrity. |
| 10 (VL) | Low-voltage logic supply | Decoupled with 0.1µF capacitor; powers VL-side circuitry and EN logic; supports 1.35–3.2V range. |
| 16 (VCC) | High-voltage logic supply | Decoupled with 0.1µF capacitor; powers VCC-side circuitry; requires VCC > VL + 200mV for enable; 2.2–3.6V range. |
| 11 (EN) | Enable control input | Active-high logic input referenced to VL; drives device into tri-state shutdown when low; also triggers auto-shutdown if VCC < VL. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-direction sensing per channel | Eliminates requirement for external direction-control GPIOs or timing-critical direction strobes, reducing MCU pin count and firmware complexity. |
| Integrated 30µA pull-up current sources | Enables reliable operation with open-drain drivers without external resistors, while maintaining fast rise times up to 100Mbps at moderate capacitive loads. |
| Accelerator-based output drivers | Delivers <3.2ns rise/fall times (I/OVCC) and <4ns (I/OVL) by momentarily driving outputs to rail/GND, then reverting to weak hold-improving noise margin and load drive. |
| Dual-supply shutdown detection | Automatically enters low-power state when EN = GND OR when VCC falls below VL, preventing undefined states during power sequencing or brownout conditions. |
| Supply-independent input thresholds | VIHL/VILL and VIHC/VILC scale with VL and VCC respectively, ensuring consistent logic interpretation across varying supply combinations without recalibration. |
Applications
| Mobile Memory Card Interface | Industrial Sensor Hub |
|---|---|
Use Scenario: Interfacing a 1.8V mobile application processor with a 3.3V SDIO/MMC memory card slot subject to hot-plug ESD events. IC Role / Device Role / Timing Role: Bidirectional level translator handling CMD, CLK, DAT0–DAT3 signals with auto-direction sensing and ±15kV IEC61000-4-2 protection on all pins. Use Value: Eliminates discrete ESD diodes and direction-control logic, reduces BOM count by 4+ components, and guarantees 100Mbps SDIO timing compliance under worst-case voltage combinations. |
Use Scenario: Connecting multiple 1.5V/1.8V digital sensors (e.g., I²C temperature, humidity, pressure) to a 3.3V industrial PLC controller over shared bus. IC Role / Device Role / Timing Role: Six-channel translator enabling simultaneous sensor readout with sub-7ns propagation delay and <1ns channel skew for synchronized sampling. Use Value: Supports deterministic I²C fast-mode plus (1Mbps) timing across all channels without bus arbitration conflicts or added latency from external direction logic. |
| Automotive Infotainment SoC Bridge | Medical Wearable Data Aggregator |
Use Scenario: Bridging a 1.8V automotive infotainment SoC's GPIO expansion bus to 3.3V display backlight control, audio codec, and CAN transceiver interfaces. IC Role / Device Role / Timing Role: Level-shifting GPIO, reset, and interrupt lines with guaranteed -40°C to +85°C operation and MSL1 reflow compatibility. Use Value: Maintains functional safety integrity by avoiding latch-up during supply sequencing mismatches (e.g., VL powered before VCC) and surviving >15kV ESD in vehicle cabin environments. |
Use Scenario: Aggregating data from six ultra-low-power 1.5V biosensors (ECG, SpO₂, accelerometer) into a 3.3V Bluetooth LE microcontroller in a compact wearable form factor. IC Role / Device Role / Timing Role: Space-optimized UTQFN (2.6mm × 1.8mm) translator enabling 6-channel bidirectional data flow with <2.5µA shutdown current. Use Value: Extends battery life by minimizing static current draw during sleep modes while preserving fast wake-up response (<1.5µs enable delay) for real-time physiological event capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0108E | 8-channel, 5V-tolerant I/O, fixed 1.2V–3.6V VL and 1.65V–5.5V VCC ranges; no auto-shutdown on VCC < VL; lower ESD (±8kV HBM). | Requires external direction control; suited for fixed-configuration systems where GPIO count is not constrained. | Select when needing 8 channels or 5V-tolerant outputs; avoid when auto-direction sensing or VCC-fail-safe shutdown is required. |
| SN74AVC16T245 | 16-bit, direction-controlled, 1.2V–3.6V dual-supply; no auto-direction sensing; higher ICC (≈100µA active); ±12kV HBM ESD only. | Requires dedicated DIR pin and timing coordination; better for high-pin-count parallel buses than serial or mixed-signal interfaces. | Choose for wide-bus applications (e.g., address/data multiplexing); not suitable for dynamic, bit-level direction changes or ESD-critical ports. |
Compared with TXS0108E and SN74AVC16T245, the ISL3035EIRUZ-T uniquely delivers per-channel auto-direction resolution, dual-supply fail-safe shutdown, and industry-leading ±15kV IEC61000-4-2 protection-making it optimal for compact, ESD-exposed, dynamically routed interfaces where GPIO conservation and robustness are critical.
Availability
ISL3035EIRUZ-T is available at Aetrix Electronics and suitable for mobile memory card interfaces, industrial sensor hubs, automotive infotainment bridges, and medical wearable data aggregators requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL3035EIRUZ-T 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 high-performance analog, mixed-signal, and embedded processing solutions for automotive, industrial, infrastructure, and IoT applications.
The ISL3035EIRUZ-T belongs to Renesas' high-speed logic level translation product line, engineered specifically for robust, low-pin-count bridging between heterogeneous voltage domains in space- and reliability-constrained systems.
FAQ
What is the maximum data rate supported by the ISL3035EIRUZ-T?
The ISL3035EIRUZ-T guarantees 100Mbps operation when VL ≥ 1.62V and uses push-pull drivers with 150Ω source impedance and ≤15pF load capacitance. At VL = 1.35V, the minimum guaranteed rate drops to 85Mbps. These rates are validated under full temperature range (-40°C to +85°C) and reflect actual signal integrity limits-not theoretical bandwidth. The ISL3035EIRUZ-T achieves this via its accelerator-driven output stage, which minimizes propagation delay and skew across all six channels.
Does the ISL3035EIRUZ-T require external pull-up resistors?
No, the ISL3035EIRUZ-T integrates 30µA internal pull-up current sources on all I/OVLx and I/OVCCx pins during active operation, eliminating the need for external pull-ups in most applications-including those using open-drain drivers. External resistors are only recommended for very high-speed (>100Mbps) or heavily loaded (CL > 35pF) open-drain configurations where internal current may limit rise time. The datasheet explicitly advises against external resistors in standard use cases to avoid compromising signal integrity and ESD performance.
How does the ISL3035EIRUZ-T handle power supply sequencing?
The ISL3035EIRUZ-T remains in automatic shutdown mode until VCC exceeds VL by at least 200mV, regardless of EN state. Either supply can be powered first; VL may exceed VCC by up to 4V without damage. Once enabled, the device operates correctly across its full VL (1.35–3.2V) and VCC (2.2–3.6V) ranges. This sequencing tolerance prevents latch-up and undefined states during system startup or brownout, making the ISL3035EIRUZ-T suitable for mixed-rail systems with independent power domains.
What ESD protection level does the ISL3035EIRUZ-T provide?
The ISL3035EIRUZ-T provides ±15kV IEC61000-4-2 air-gap discharge protection and >±9kV contact discharge protection on all pins-including I/OVLx, I/OVCCx, EN, VL, and VCC-as verified per JEDEC standards. It also meets ±15kV Human Body Model (HBM) and ±1300V Machine Model (MM) requirements. This level of protection allows direct placement on exposed ports (e.g., SD card slots) without board-level TVS diodes, reducing parasitic capacitance and simplifying layout while maintaining compliance with IEC61000-4-2 Level 4.
Can the ISL3035EIRUZ-T be used for unidirectional level translation?
Yes, the ISL3035EIRUZ-T supports unidirectional operation, but caution is required with heavy capacitive or resistive loads on the output side. When used unidirectionally with >500Ω loads or >35pF capacitance, oscillation or latch-up may occur due to internal feedback. Renesas recommends inserting a buffer (e.g., 74LVC1G11) between the ISL3035EIRUZ-T output and the heavy load. For pure unidirectional needs, dedicated single-direction translators may offer simpler biasing-but the ISL3035EIRUZ-T retains full functionality in bidirectional mode without configuration overhead.
ISL3035EIRUZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 6
- Voltage - VCCA:
- 1.35 V ~ 3.2 V
- Voltage - VCCB:
- 2.2 V ~ 3.6 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Open Drain, Push-Pull
- Data Rate:
- 100Mbps
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- Auto-Direction Sensing
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-UFQFN
ISL3035EIRUZ-T FAQ
1.How can I place an order for ISL3035EIRUZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL3035EIRUZ-T 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 ISL3035EIRUZ-T reliable?
The price and inventory of ISL3035EIRUZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL3035EIRUZ-T is usually 5 days.
3.What payment methods are accepted for ISL3035EIRUZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL3035EIRUZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL3035EIRUZ-T?
ISL3035EIRUZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL3035EIRUZ-T 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 ISL3035EIRUZ-T?
For technical support, including ISL3035EIRUZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL3035EIRUZ-T requirements.
6.How does Aetrix verify that ISL3035EIRUZ-T is sourced from the original manufacturer or authorized distributors?
All ISL3035EIRUZ-T 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 ISL3035EIRUZ-T meets industry standards.
7.What is the process for return or replacement of ISL3035EIRUZ-T?
All ISL3035EIRUZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL3035EIRUZ-T, 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 ISL3035EIRUZ-T part is unused and in its original packaging.
Return procedure for ISL3035EIRUZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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