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Diodes Incorporated PI4ULS5V106ZHDEX
- Part No.:
- PI4ULS5V106ZHDEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
PI4ULS5V106ZHDEX.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 16UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,451
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Product details
Overview
PI4ULS5V106ZHDEX from Diodes Incorporated is a 6-bit bidirectional voltage level shifter IC designed for open-drain and push-pull interfaces, supporting up to 100 MHz down-translation and 40 MHz up/down translation at 50 pF load, with independent VREFA (0.95–4.5 V) and VREFB (1.8–5.5 V) rails, enabling flexible 1.0 V ↔ 5.0 V translation without direction control in I²C, SMBus, and MDIO systems.
For engineers reviewing the PI4ULS5V106ZHDEX datasheet, PI4ULS5V106ZHDEX pinout, PI4ULS5V106ZHDEX application, or PI4ULS5V106ZHDEX equivalent, this device delivers verified bidirectional translation across six channels with sub-2 ns propagation delay, low 8–30 Ω ON-state resistance, 5 V-tolerant I/O, and flow-through UQFN-16 layout optimized for high-speed signal integrity and PCB routing efficiency.
Technical Context
The PI4ULS5V106ZHDEX implements passive MOSFET-based bidirectional translation per channel, eliminating the need for a DIR pin by leveraging internal pass-gate architecture controlled by VREFA and VREFB. Each channel operates independently, allowing mixed-voltage configurations-e.g., Channel 1 at 1.2 V ↔ 3.3 V and Channel 2 at 2.5 V ↔ 1.8 V-within a single package.
EN input is referenced to VREFB and must be pulled high via 200 kΩ resistor to enable translation; when EN = LOW, all A/B ports enter high-impedance state. The device supports hot insertion and meets JESD17 latch-up immunity (>100 mA), with ESD protection rated at 8 kV HBM and 1 kV CDM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 6 independent bidirectional data paths (A1–A6 ↔ B1–B6) |
| Max Translation Speed | 100 MHz down-translation (≤30 pF), 40 MHz up/down (50 pF) |
| ON-State Resistance | 8–30 Ω depending on VREFA/VREFB combination and current (e.g., 8 Ω @ VREFA=3.3 V, IO=64 mA) |
| Voltage Range Support | VREFA: 0.95–4.5 V; VREFB: 1.8–5.5 V; enables 1.0↔5.0 V, 1.8↔3.3 V, 2.5↔5.0 V, etc. |
| Propagation Delay | 0.78–2.2 ns (tPLH/tPHL), measured at CL=15–50 pF, RL=300 Ω |
| ESD Protection | 8 kV HBM, 1 kV CDM - sufficient for board-level handling and system integration |
| Operating Temp | –40°C to +125°C - qualified for industrial and telecom environments |
Pinout & Package
Package: 16-pin UQFN (3 mm × 3 mm, ZHD code), wettable flank, RoHS-compliant, lead-free and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 15) | Ground reference | Common return path for both sides; must be low-inductance connection to minimize noise coupling |
| VREFA (Pin 16) | Reference supply A | Sets maximum output voltage on An ports; defines low-side rail (0.95–4.5 V) |
| An (Pins 1–6) | Data port A | Bidirectional I/O for low-voltage domain (e.g., 1.2 V/1.8 V microcontroller interface) |
| Bn (Pins 7–12) | Data port B | Bidirectional I/O for high-voltage domain (e.g., 3.3 V/5 V peripheral bus) |
| VREFB (Pin 13) | Reference supply B | Sets maximum output voltage on Bn ports; defines high-side rail (1.8–5.5 V); powers EN input |
| EN (Pin 14) | Enable control | Active-HIGH enable referenced to VREFB; must be pulled high via 200 kΩ to VREFB for operation |
Key Features
| Feature | Design Value |
|---|---|
| No direction pin required | Enables true bidirectional translation on all six channels using only VREFA/VREFB biasing-reduces MCU GPIO count and simplifies firmware logic for I²C/SMBus |
| Flow-through pinout | Pins A1–A6 and B1–B6 arranged linearly (1–6 / 7–12) with GND/VREFA/VREFB/EN at edges-minimizes trace crossovers and improves signal integrity in dense layouts |
| Low ON-resistance | 8–30 Ω range ensures minimal voltage drop and signal distortion during translation, critical for maintaining VIH/VIL margins in high-speed open-drain buses |
| 5 V-tolerant I/O | Allows direct interfacing with legacy TTL/CMOS peripherals without external clamping-supports robust interoperability in mixed-voltage industrial backplanes |
| Hot-insertion support | EN-controlled high-impedance state prevents bus contention during live module replacement-essential for modular telecom and server management subsystems |
Applications
| I²C Bus Voltage Translation | SMBus Interface Bridging |
|---|---|
|
Use Scenario: Connecting a 1.8 V microcontroller I²C master to a 3.3 V sensor slave in an industrial IoT node. IC Role / Device Role / Timing Role: Bidirectional level shifter enabling SDA/SCL communication across voltage domains without clock stretching or arbitration loss. Use Value: Maintains full 100 kHz–400 kHz I²C timing compliance with <2 ns propagation delay and 8 Ω Ron-preserves setup/hold margins under 50 pF bus loading. |
Use Scenario: Interfacing a 1.2 V baseband processor SMBus controller to 5 V power-management ICs in a 5G radio unit. IC Role / Device Role / Timing Role: Voltage translator ensuring correct logic thresholds and noise immunity on shared SMBus lines operating up to 100 kHz. Use Value: 5 V-tolerant I/O and 8 kV HBM ESD withstand capability prevent latch-up or damage during field maintenance of hot-swappable RF modules. |
| MDIO Interface Scaling | Open-Drain Sensor Hub Integration |
|
Use Scenario: Translating MDIO signals between a 2.5 V Ethernet PHY and a 1.0 V MAC controller in a compact network switch ASIC design. IC Role / Device Role / Timing Role: High-speed bidirectional translator supporting >100 Mbps MDIO operation with sub-1 ns tPHL at 30 pF load. Use Value: Enables seamless register access and link status polling without protocol modification-critical for IEEE 802.3 clause 22/45 compliance. |
Use Scenario: Aggregating multiple 3.3 V open-drain temperature/humidity sensors onto a 1.8 V MCU bus in a smart building controller. IC Role / Device Role / Timing Role: Six-channel translator allowing concurrent sensor reads while preserving pull-up resistor flexibility per channel. Use Value: Independent VREFA/VREFB configuration permits optimal pull-up sizing (e.g., 10 kΩ on B-side, 4.7 kΩ on A-side) to meet rise-time targets across mixed-load nodes. |
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, integrated auto-direction sensing, higher ICC (20 µA typical), no independent VREF rails | Requires no external pull-up on EN; less flexible for mixed-rail designs but simpler for uniform 1.8↔3.3 V systems | Prefer TXS0108E when system uses identical voltage pairs across all channels and direction-sensing simplifies layout |
| PCA9306 | 2-channel, supports only 1.2↔3.3 V and 1.8↔5.0 V pairs, max 40 MHz, no EN pin, higher Ron (~15 Ω min) | Limited to dual-channel use; lacks enable control and independent VREFB referencing-unsuitable for hot-swap or multi-rail partitioning | Choose PCA9306 only for cost-sensitive, low-channel-count applications where VREF flexibility and EN control are unnecessary |
Compared with TXS0108E and PCA9306, the PI4ULS5V106ZHDEX provides superior channel density (6 vs. 2 or 8), independent rail control per side, and lower Ron for tighter timing margins-making it optimal for space-constrained, multi-voltage industrial and telecom interfaces requiring precise translation control.
Availability
PI4ULS5V106ZHDEX is available at Aetrix Electronics and suitable for industrial automation controllers, 5G baseband modules, and smart energy metering systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for PI4ULS5V106ZHDEX 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 analog ICs, specializing in high-reliability components for industrial, automotive, and communications markets with ISO/TS 16949 and IATF 16949 certification.
The PI4ULS5V106ZHDEX belongs to Diodes' Pericom® level translation portfolio, engineered specifically for high-speed, multi-rail interoperability in open-drain and push-pull digital interfaces-including I²C, SMBus, MDIO, and GPIO expansion.
FAQ
Can PI4ULS5V106ZHDEX translate between 1.0 V and 5.0 V simultaneously on different channels?
Yes. Each of the six channels operates independently with its own VREFA and VREFB references. For example, Channel 1 can translate 1.0 V ↔ 3.3 V while Channel 2 handles 1.8 V ↔ 5.0 V-enabling heterogeneous voltage domain bridging within a single UQFN-16 package without external direction logic.
What is the recommended EN pull-up configuration?
EN must be pulled HIGH to VREFB using a 200 kΩ resistor, as specified in the datasheet. This ensures proper enable threshold referencing and avoids floating states during power-up. A bypass capacitor on VREFB is also recommended to stabilize the reference and suppress noise-induced EN glitches.
Does PI4ULS5V106ZHDEX support push-pull drivers on both sides?
Yes-but only if one side is actively driven and the other is configured as open-drain with pull-up resistors. For true push-pull-to-push-pull translation, external 3-state control or directional arbitration is required to prevent bus contention; the device itself does not resolve simultaneous HIGH-to-LOW conflicts.
How does ON-state resistance vary with voltage and current?
Ron ranges from 8 Ω (VREFA = 3.3 V, IO = 64 mA) to 30 Ω (VREFA = 1.0 V, IO = 10 mA, VREFB = 1.8 V). Lower VREFA increases Ron due to reduced gate overdrive; higher sink current reduces effective Ron. Designers must verify VIH/VIL margins using worst-case Ron values from the DC Electrical Characteristics table.
PI4ULS5V106ZHDEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- ULS
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 6
- Voltage - VCCA:
- 0.95 V ~ 3.3 V
- Voltage - VCCB:
- 1.8 V ~ 5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- 100MHz
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-UFQFN Exposed Pad
PI4ULS5V106ZHDEX FAQ
1.How can I place an order for PI4ULS5V106ZHDEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI4ULS5V106ZHDEX 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 PI4ULS5V106ZHDEX reliable?
The price and inventory of PI4ULS5V106ZHDEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI4ULS5V106ZHDEX is usually 5 days.
3.What payment methods are accepted for PI4ULS5V106ZHDEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI4ULS5V106ZHDEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI4ULS5V106ZHDEX?
PI4ULS5V106ZHDEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI4ULS5V106ZHDEX 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 PI4ULS5V106ZHDEX?
For technical support, including PI4ULS5V106ZHDEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI4ULS5V106ZHDEX requirements.
6.How does Aetrix verify that PI4ULS5V106ZHDEX is sourced from the original manufacturer or authorized distributors?
All PI4ULS5V106ZHDEX 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 PI4ULS5V106ZHDEX meets industry standards.
7.What is the process for return or replacement of PI4ULS5V106ZHDEX?
All PI4ULS5V106ZHDEX units undergo pre-shipment inspection (PSI). If there is an issue with PI4ULS5V106ZHDEX, 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 PI4ULS5V106ZHDEX part is unused and in its original packaging.
Return procedure for PI4ULS5V106ZHDEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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