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Diodes Incorporated PI3L110QE
- Part No.:
- PI3L110QE
- Manufacturer:
- Diodes Incorporated
- Category:
- Analog Switches - Special Purpose
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
PI3L110QE.pdf
- Description:
- IC ETHERNET SWITCH QUAD 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,656
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Product details
Overview
PI3L110QE from Diodes Incorporated is a 3.3V quad 2:1 multiplexer/demultiplexer LAN switch with single enable, designed for Fast Ethernet (10/100 Base-T) signal routing between PHY devices and interface connectors. It features 4Ω typical on-resistance, <250ps propagation delay, 350MHz bandwidth, –27dB crosstalk at 250MHz, and IOFF support for partial-power-down operation.
For engineers reviewing the PI3L110QE datasheet, PI3L110QE pinout, PI3L110QE application, or PI3L110QE equivalent, key selection criteria include low bit-to-bit skew, high channel-to-channel isolation, rail-to-rail logic compatibility up to +3.6V, Hi-Z outputs during disable, and ESD robustness (>2kV HBM) in QSOP packaging.
Technical Context
The PI3L110QE implements a bidirectional analog switch architecture optimized for differential Ethernet signals, with matched RON and flatness (<1Ω) ensuring minimal amplitude imbalance across channels. Its IOFF circuitry blocks backflow current when VCC = 0V, enabling safe hot-swap and power-gating in multi-rail systems.
It operates exclusively within 3.0V–3.6V supply range and supports 0–5V data I/O swing independent of VCC. The device uses undershoot clamp diodes on all control and data pins and achieves <0.2ns output skew (tSK(p))-critical for maintaining signal integrity in dual-PHY sharing topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RON | 4Ω typical - ensures minimal insertion loss and voltage drop for 10/100 Base-T differential signals |
| Propagation Delay | 250ps - enables timing-critical PHY-to-connector switching without adding system-level skew |
| Bandwidth | 350MHz - supports full 100BASE-TX data rate (125MHz symbol rate) with margin |
| Crosstalk | –27dB @ 250MHz - maintains signal separation between active and inactive lanes in shared connector schemes |
| IOFF Current | 1µA max at VCC = 0V - guarantees no backfeed path during partial power-down |
| VCC Range | +3.0V to +3.6V - aligns with standard 3.3V Ethernet PHY supply rails and tolerances |
| ESD Protection | >2kV HBM - protects against handling-induced transients in board assembly and field service |
Pinout & Package
PI3L110QE is packaged in a 16-pin 150-mil wide plastic QSOP (Q), RoHS-compliant and green-compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | 3.3V core supply; powers internal logic and switch FETs |
| GND | Ground reference | Common return for all analog and digital paths; critical for noise isolation |
| S | Channel select control | Binary selector determining whether IA0/IB0/IC0/ID0 or IA1/IB1/IC1/ID1 are routed to YA/YB/YC/YD |
| E | Global enable | Active-low enable; drives all outputs to Hi-Z when high |
| IA0–ID1 | Data inputs (8 total) | Differential pair inputs from two Fast Ethernet PHYs; tolerate 0–5V swing |
| YA–YD | Data outputs (4 total) | Hi-Z outputs routed to shared RJ-45 connector; bidirectional signal path |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail logic inputs | Control pins accept 0–3.6V regardless of VCC - simplifies interfacing with mixed-voltage controllers |
| Undershoot clamp diodes | Integrated clamps on all I/O and control pins - prevent negative transient damage during hot-plug or ESD events |
| Low bit-to-bit skew | tSK(p) ≤ 0.2ns - preserves differential timing alignment across all four switched lanes |
| Partial-power-down support | IOFF limits leakage to ≤1µA when VCC = 0 - enables safe power sequencing in multi-supply systems |
| High channel isolation | OIRR >30dB - suppresses coupling between enabled and disabled channels at Ethernet frequencies |
Applications
| 10/100 Base-T Dual-PHY Sharing | LAN Port Multiplexing |
|---|---|
Use Scenario: Two Fast Ethernet PHYs share a single RJ-45 connector via transformer-coupled CAT5/6 UTP cabling. IC Role / Device Role / Timing Role: Quad 2:1 Mux/DeMux switch selecting active PHY while maintaining Hi-Z on inactive path. Use Value: Eliminates need for mechanical relays; enables software-controlled port failover with sub-ns timing fidelity. | Use Scenario: Embedded switch fabric routes Ethernet traffic between multiple MACs and one physical port. IC Role / Device Role / Timing Role: Bidirectional analog switch providing low-loss, low-skew signal path between MAC-side PHY interfaces and line-side magnetics. Use Value: Maintains 100BASE-TX eye diagram integrity with <0.2ns inter-lane skew and –27dB crosstalk. |
| Industrial Ethernet Redundancy | Test Equipment Signal Routing |
Use Scenario: Redundant LAN links in PLC or motion controller require automatic switchover upon link failure. IC Role / Device Role / Timing Role: Enables/disables PHY signal paths under microcontroller control with IOFF protection during power transitions. Use Value: Prevents backfeed between powered-down and active subsystems; supports hot-swap-capable field upgrades. | Use Scenario: Automated test fixture routes differential Ethernet signals between DUT and analyzer using programmable switching. IC Role / Device Role / Timing Role: Low-RON, high-bandwidth analog switch selected via GPIO for flexible signal path configuration. Use Value: Delivers <250ps propagation delay and 4Ω RON - preserves rise/fall times and amplitude accuracy for compliance testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Fast Ethernet analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PI3L110LE | Same die, TSSOP-16 package (173-mil width); 0.65mm pitch vs QSOP's 0.635mm | Higher thermal resistance (θJA ≈ 120°C/W vs 105°C/W); less suitable for high-density layouts | Select for legacy board designs requiring TSSOP footprint or improved manufacturability with larger pitch. |
| TS3L110PWR | TI part; 3.3V, 4Ω RON, but only 200MHz bandwidth and no IOFF specification | Lacks guaranteed partial-power-down behavior; not qualified for hot-swap or multi-rail sequencing | Acceptable for cost-sensitive non-redundant applications where bandwidth margin is acceptable and power sequencing is fixed. |
Compared with PI3L110LE and TS3L110PWR, the PI3L110QE offers superior thermal performance in QSOP, guaranteed IOFF for safe power-down, and 350MHz bandwidth-making it optimal for industrial redundancy and high-fidelity test routing where signal integrity and sequencing safety are mandatory.
Availability
PI3L110QE is available at Aetrix Electronics and suitable for 10/100 Base-T dual-PHY sharing, industrial Ethernet redundancy, LAN port multiplexing, and automated test equipment requiring stable component supply and long-term lifecycle assurance.
Supply support for PI3L110QE 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 integrated circuits, specializing in high-performance analog, logic, and protection solutions for industrial, computing, and communications markets.
The PI3L110 product line delivers high-speed analog switches optimized for Fast Ethernet signal routing, emphasizing low skew, high isolation, and robust power-management features like IOFF for mission-critical connectivity systems.
FAQ
What is the maximum data rate supported by PI3L110QE?
The PI3L110QE supports 100BASE-TX Ethernet with a guaranteed 350MHz –3dB bandwidth, which exceeds the 125MHz fundamental frequency and harmonics required for full compliance. Measured crosstalk of –27dB at 250MHz and <250ps propagation delay confirm suitability for 100Mbps differential signaling over CAT5/6 cable.
Does PI3L110QE support hot-swap or live insertion?
Yes-its IOFF feature ensures <1µA leakage when VCC = 0V, preventing back-current flow from live data lines into a powered-down device. Combined with undershoot clamp diodes on all I/O and control pins, this enables safe hot-swap operation in modular Ethernet systems without risk of latch-up or damage.
Can PI3L110QE be used with 5V-tolerant microcontrollers driving the S and E pins?
Yes-the logic inputs (S and E) are rail-to-rail compatible and rated for 0V to +3.6V regardless of VCC level. When VCC = 3.3V, applying 0–3.6V to S/E is fully specified; exceeding 3.6V is not allowed. This allows direct interfacing with 3.3V GPIOs or level-shifted 5V control signals limited to 3.6V max.
How does PI3L110QE handle differential signal integrity across switched lanes?
It maintains differential integrity through matched 4Ω RON (±0.9Ω match), <0.2ns output skew (tSK(p)), and –27dB crosstalk at 250MHz. The symmetric layout and low channel capacitance (9pF ON, 4–6pF OFF) minimize rise-time degradation and inter-pair coupling-verified in 100BASE-TX eye diagram tests per IEEE 802.3u.
PI3L110QE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Telecommunications
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Switch Circuit:
- -
- Number of Channels:
- 4
- On-State Resistance (Max):
- 8Ohm
- Voltage - Supply, Single (V+):
- 3V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- -3db Bandwidth:
- 350MHz
- Features:
- 10/100 Base-T
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QSOP
PI3L110QE FAQ
1.How can I place an order for PI3L110QE through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3L110QE 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 PI3L110QE reliable?
The price and inventory of PI3L110QE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3L110QE is usually 5 days.
3.What payment methods are accepted for PI3L110QE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3L110QE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3L110QE?
PI3L110QE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3L110QE 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 PI3L110QE?
For technical support, including PI3L110QE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3L110QE requirements.
6.How does Aetrix verify that PI3L110QE is sourced from the original manufacturer or authorized distributors?
All PI3L110QE 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 PI3L110QE meets industry standards.
7.What is the process for return or replacement of PI3L110QE?
All PI3L110QE units undergo pre-shipment inspection (PSI). If there is an issue with PI3L110QE, 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 PI3L110QE part is unused and in its original packaging.
Return procedure for PI3L110QE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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