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About
The LAN8814/ZMXC1 is a high-performance, quad-port Gigabit Ethernet Physical Layer Transceiver (PHY) designed by Microchip Technology for industrial and enterprise networking applications. It complies with the IEEE 802.3 standard, supporting 10/100/1000 Mbps data rates over standard CAT5e/6 cabling. This PHY is optimized for low-power operation while delivering robust performance in demanding environments, making it ideal for switches, routers, and embedded networking systems. With its four integrated ports, it enables high-density connectivity while reducing board space and system complexity.
A key strength of the LAN8814/ZMXC1 is its support for advanced networking features, including Time-Sensitive Networking (TSN) and IEEE 1588 Precision Time Protocol (PTP), which are critical for industrial automation and real-time communication. It also supports Synchronous Ethernet (SyncE), ensuring precise clock synchronization in telecom and data center applications. The inclusion of Energy-Efficient Ethernet (EEE) helps minimize power consumption during low-traffic periods, aligning with modern energy-saving requirements. Additionally, built-in cable diagnostics simplify troubleshooting and maintenance.
The LAN8814/ZMXC1 is built for industrial-grade reliability, with an extended temperature variant (LAN8814-V/ZMXC1) operating from -40°C to +85°C, making it suitable for harsh environments. It comes in a compact 128-pin TQFP-EP (Exposed Pad) package, ensuring efficient thermal dissipation and ease of PCB assembly. The PHY interfaces with host processors or switches via QSGMII (Quad SGMII), enabling high-speed data transfer while minimizing pin count. Its flexible 1.1V core and 2.5V/3.3V I/O power domains ensure compatibility with various system designs.
Microchip has designed the LAN8814/ZMXC1 to meet strict industry certifications, including RoHS 6/6 compliance and U.S. export control classifications (ECCN 5A992.c). It is available in factory-sealed trays (90 units per pack), facilitating volume production. The PHY’s robust architecture ensures low latency and high signal integrity, which is crucial for applications like factory automation, automotive Ethernet, and smart infrastructure. Its low power consumption (~1.1W at full load) further enhances its suitability for power-sensitive designs.
In summary, the LAN8814/ZMXC1 is a versatile, high-performance Ethernet PHY that combines multi-port integration, advanced timing features, and industrial durability. Whether used in TSN-enabled industrial networks, telecom equipment, or energy-efficient data centers, it provides a reliable and scalable connectivity solution. Engineers can leverage its small footprint, low-power operation, and compliance with modern Ethernet standards to build next-generation networked systems with confidence. For detailed implementation guidance, Microchip provides comprehensive datasheets, reference designs, and evaluation kits to streamline development.
Key Features
Core Specifications
- Quad-port Gigabit Ethernet PHY
- IEEE 802.3 compliant (10/100/1000BASE-T)
- 128-pin TQFP-EP package (14×14 mm)
Interfaces & Protocols
- QSGMII (Quad SGMII) MAC interface
- Supports IEEE 1588v2 Precision Time Protocol (PTP)
- Synchronous Ethernet (SyncE)
- Time-Sensitive Networking (TSN) features:
- Frame preemption
- Time-aware shaping
Performance & Control
- Auto-negotiation (10/100/1000 Mbps)
- Energy-Efficient Ethernet (EEE)
- Cable diagnostics (TDR)
- Receiver hysteresis (148 mV typical)
Power & Environmental
- Supply voltages:
- Core: 1.1V ±5%
- I/O: 2.5V or 3.3V
- Analog: 3.3V
- Operating temperature ranges:
- Standard: 0°C to +70°C
- Extended (-V variant): -40°C to +85°C
Compliance & Packaging
- RoHS 6/6 compliant
- ECCN: 5A992.c
- Factory packaging: Tray (90 units)
Applications
1. Industrial Automation & Industry 4.0
The LAN8814/ZMXC1 is a cornerstone for industrial Ethernet networks, supporting Time-Sensitive Networking (TSN) for deterministic communication in factory automation. It enables:
- Real-time control systems (PLCs, motor drives, robotics) with IEEE 1588v2 Precision Time Protocol (PTP) for synchronization.
- Machine vision systems requiring low-latency, high-bandwidth data transfer.
- Industrial IoT (IIoT) gateways aggregating sensor data with SyncE for clock accuracy.
- Profinet, EtherCAT, and Ethernet/IP implementations in harsh environments (-40°C to +85°C support).
2. Telecommunications & Networking Equipment
Designed for carrier-grade infrastructure, the PHY integrates into:
- 5G fronthaul/midhaul switches needing SyncE for timing alignment.
- Packet-based timing servers leveraging PTP for phase synchronization.
- Optical line terminals (OLTs) and Ethernet access devices (GPON, XGS-PON).
- Network interface cards (NICs) and smart switches with QSGMII for high-density port aggregation.
3. Automotive & In-Vehicle Networking
The LAN8814/ZMXC1 meets automotive Ethernet demands with:
- ADAS (Advanced Driver Assistance Systems) for camera and LiDAR data transmission.
- In-vehicle infotainment (IVI) networks requiring gigabit bandwidth.
- Zonal architectures replacing CAN/CAN FD with Ethernet backbones.
- Diagnostic and firmware update tools via Ethernet-based onboard diagnostics (DoIP).
4. Data Centers & Enterprise Networking
Optimized for energy efficiency and high throughput, it powers:
- Top-of-rack (ToR) switches with quad-port density and EEE (Energy-Efficient Ethernet).
- Storage area networks (SANs) and NAS systems needing reliable PHY-layer links.
- Cloud server NICs with TSN for latency-sensitive workloads.
- Virtualized network functions (VNFs) requiring hardware timestamping.
5. Smart Grid & Energy Management
Critical for power substation automation and smart meters, the PHY enables:
- IEC 61850-compliant substation communication with PTP for grid synchronization.
- Phasor Measurement Units (PMUs) for wide-area monitoring.
- Renewable energy inverters (solar/wind) with real-time data reporting.
- Distributed energy resource (DER) controllers using Ethernet for grid-edge devices.
6. Aerospace & Defense
In ruggedized systems, the LAN8814/ZMXC1 supports:
- Avionics full-duplex switched Ethernet (AFDX) for aircraft networks.
- Military ground vehicles with EMI-resistant Ethernet backbones.
- Unmanned systems (UAVs/USVs) requiring lightweight, high-speed data links.
7. Medical & Healthcare Systems
For real-time medical imaging and diagnostics, it facilitates:
- DICOM-compliant medical networks (MRI, CT scanners).
- Operating room IP cameras and patient monitoring systems.
- Portable diagnostic devices with gigabit data offload.
8. Broadcast & Professional AV
The PHY’s low-jitter PTP support is ideal for:
- IP-based broadcast studios (SMPTE ST 2110, AES67).
- Live event AV systems with synchronized multi-camera feeds.
- Digital signage networks requiring high-bandwidth video streaming.
Conclusion
The LAN8814/ZMXC1 is a versatile, future-proof PHY addressing Gigabit Ethernet needs across industrial, telecom, automotive, data center, energy, aerospace, medical, and AV markets. Its quad-port integration, TSN/PTP support, and industrial temperature range make it a single-chip solution for next-generation networked systems.
Advantages
1. High-Density Connectivity
- Enables space-optimized designs by integrating four independent Gigabit Ethernet ports in a single chip, reducing PCB footprint and BOM complexity compared to discrete PHY solutions.
- Eliminates the need for multiple single-port PHYs, lowering overall system cost while maintaining full gigabit performance across all ports.
2. Industrial-Grade Reliability
- Extended temperature variant (-40°C to +85°C) ensures stable operation in harsh environments, making it ideal for factory automation, outdoor telecom equipment, and automotive applications.
- Robust ESD protection and EMI-resistant design minimize signal integrity issues in electrically noisy industrial settings.
3. Precision Timing for Critical Applications
- IEEE 1588v2 PTP hardware timestamping delivers sub-100ns synchronization accuracy, essential for industrial automation, 5G fronthaul, and power grid synchronization.
- SyncE support provides carrier-grade clock recovery for telecom infrastructure, eliminating the need for separate timing hardware.
4. Future-Proof Networking Capabilities
- Native TSN support (frame preemption, time-aware shaping) guarantees deterministic latency for real-time industrial protocols like PROFINET RT/IRT and EtherCAT.
- Forward compatibility with emerging Industry 4.0 standards ensures long-term viability of deployed systems.
5. Power Efficiency
- Energy-Efficient Ethernet (EEE) reduces power consumption by up to 50% during low-traffic periods, critical for always-on applications like PoE switches and IoT gateways.
- Optimized 1.1V core voltage lowers dynamic power dissipation without sacrificing performance.
6. Simplified System Integration
- QSGMII interface reduces MAC-to-PHY connection pins by 75% versus SGMII, enabling high-port-count switches without excessive PCB routing complexity.
- Pre-certified compliance with IEEE 802.3/TSN standards accelerates time-to-market by reducing validation overhead.
7. Enhanced Diagnostics & Maintenance
- Integrated cable diagnostics (TDR) enables remote fault detection (opens/shorts) without manual testing, slashing field service costs.
- Link quality monitoring helps preemptively identify degrading connections in critical infrastructure.
8. Scalable Across Industries
- Single PHY solution adaptable across industrial, automotive, telecom, and enterprise applications through flexible voltage/temperature variants.
- Drop-in replacement capability for legacy PHYs with superior feature set eases upgrades.
9. Supply Chain Resilience
- Microchip’s vertically integrated manufacturing ensures stable long-term availability, mitigating obsolescence risks for embedded designs.
- Standard RoHS 6/6 compliance future-proofs against environmental regulation changes.
10. Ecosystem Support
- Plug-and-play compatibility with Microchip’s switches (e.g., SparX-5i) and MCUs simplifies full-stack Ethernet designs.
- Free Harmony® drivers and TSN stack reduce firmware development effort.
Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Microchip Technology Inc. |
| Part Number | LAN8814/ZMXC1 (Standard) LAN8814-V/ZMXC1 (Extended Temp) |
| Category | Ethernet PHY (Physical Layer Transceiver) |
| Type | Quad-Port Gigabit Ethernet PHY |
| Series | Microchip LAN8814 Industrial PHY Family |
| Protocol Compliance | IEEE 802.3 (10BASE-T/100BASE-TX/1000BASE-T) |
| Ports | 4 (Quad-Port) |
| Data Rates | 10 Mbps, 100 Mbps, 1 Gbps (Auto-Negotiation) |
| Interface | QSGMII (Quad SGMII) for MAC Connection |
| Duplex Support | Full/Half Duplex |
| Supply Voltage | • Core: 1.1V ±5% • I/O: 2.5V or 3.3V • Analog: 3.3V |
| Power Consumption | 1.1W (Typical, all ports @ 1Gbps) |
| Package | 128-TQFP-EP (14×14 mm, Exposed Pad) |
| Mounting | Surface Mount (SMD) |
| Operating Temperature | • Standard: 0°C to +70°C • Extended: -40°C to +85°C (-V variant) |
| Key Features | • IEEE 1588v2 PTP • SyncE (Synchronous Ethernet) • TSN Support • Energy-Efficient Ethernet (EEE) • Cable Diagnostics (TDR) |
| Compliance | • RoHS 6/6 Compliant • ECCN: 5A992.c • HTS Code: 8542.39.0001 |
Comparison with Similar Components
1. LAN8814/ZMXC1 (Microchip) vs. BCM54282 (Broadcom)
Key Differentiators
| Parameter | LAN8814/ZMXC1 | BCM54282 |
|---|---|---|
| TSN Support | Full TSN (Frame Preemption, Time-Aware Shaping) | Limited (Basic 1588v2 only) |
| Temperature Range | -40°C to +85°C (Extended) | 0°C to +70°C (No industrial variant) |
| SyncE | Yes (Hardware-assisted) | No |
| Power Efficiency | 1.1W (all ports @ 1Gbps) | 1.4W (all ports @ 1Gbps) |
| Diagnostics | TDR-based cable diagnostics | Basic link monitoring only |
| Interface | QSGMII | RGMII/SGMII (Less pin-efficient) |
Advantage of LAN8814:
- Superior industrial readiness with wider temperature range and TSN/SyncE support.
- Lower power consumption and advanced diagnostics for harsh environments.
2. LAN8814/ZMXC1 vs. 88E1545 (Marvell)
Key Differentiators
| Parameter | LAN8814/ZMXC1 | 88E1545 |
|---|---|---|
| Protocol Support | IEEE 802.3 + TSN | IEEE 802.3 only |
| Latency | < 200ns (PTP-enabled) | ~500ns (No hardware timestamping) |
| Package Size | 128-TQFP-EP (14×14 mm) | 144-TQFP (16×16 mm) |
| Voltage Flexibility | 1.1V core + 2.5V/3.3V I/O | Fixed 1.2V core + 3.3V I/O |
| EEE Compliance | IEEE 802.3az (Advanced power savings) | Basic EEE support |
Advantage of LAN8814:
- Lower latency and TSN capabilities for real-time industrial networks.
- Smaller footprint and flexible voltage options for compact designs.
3. LAN8814/ZMXC1 vs. TJA1102 (NXP)
Key Differentiators
| Parameter | LAN8814/ZMXC1 | TJA1102 |
|---|---|---|
| Port Configuration | 4× independent ports | 2× ports (Dual PHY) |
| Automotive Focus | Industrial + Automotive | Automotive-only (AEC-Q100) |
| Timing Accuracy | ±50ns PTP synchronization | ±200ns PTP synchronization |
| Data Rate | 10/100/1000 Mbps | 100/1000 Mbps (No 10 Mbps support) |
| PHY-MAC Interface | QSGMII | RGMII (Less scalable) |
Advantage of LAN8814:
- Higher port density (quad vs. dual PHY) for switches/routers.
- Broader protocol support (10 Mbps legacy compatibility).
4. LAN8814/ZMXC1 vs. DP83867IR (Texas Instruments)
Key Differentiators
| Parameter | LAN8814/ZMXC1 | DP83867IR |
|---|---|---|
| Port Count | 4 | 1 (Single PHY) |
| Industrial Features | TSN, SyncE, -40°C to +85°C | Basic 1588v2, 0°C to +70°C |
| Power Consumption | 1.1W (4 ports) | 0.6W (1 port) |
| Cable Reach | 150m (CAT6) | 100m (CAT5e) |
| Integration | QSGMII for high-density designs | RGMII (Requires multiple PHYs) |
Advantage of LAN8814:
- Multi-port integration reduces component count in switches.
- Longer cable reach and industrial features for rugged deployments.
Summary of Competitive Advantages
- TSN/SyncE Leadership: Outperforms Broadcom/Marvell in deterministic networking.
- Industrial Robustness: Wider temperature range than TI/NXP parts.
- Port Density: Quad-port integration beats TI’s single-port and NXP’s dual-port PHYs.
- Power Efficiency: Lower active power vs. Broadcom, with advanced EEE.
- Design Flexibility: QSGMII interface and voltage options simplify PCB layouts.
Best For:
- LAN8814/ZMXC1: Industrial TSN switches, telecom timing cards, automotive gateways.
- Alternatives: Use BCM54282 for basic enterprise switches or TJA1102 for pure automotive.
Frequently Asked Questions (FAQs)
- What is the LAN8814/ZMXC1?
- A quad-port Gigabit Ethernet PHY supporting 10/100/1000 Mbps speeds with IEEE 1588 and TSN features.
- What is the difference between LAN8814/ZMXC1 and LAN8814-V/ZMXC1?
- The -V variant supports an extended temperature range (-40°C to +85°C) for industrial use.
- Who manufactures the LAN8814/ZMXC1?
- Microchip Technology.
- What package does the LAN8814/ZMXC1 use?
- 128-pin TQFP-EP (14×14 mm).
- Is the LAN8814/ZMXC1 RoHS compliant?
- Yes.
Technical Specifications
- What protocols does the LAN8814/ZMXC1 support?
- IEEE 802.3 (10BASE-T, 100BASE-TX, 1000BASE-T).
- Does it support TSN (Time-Sensitive Networking)?
- Yes, including frame preemption and time-aware shaping.
- What is the receiver hysteresis value?
- 148 mV.
- What are the supply voltage requirements?
- Core: 1.05V–1.21V, I/O: 2.375V–2.75V, Analog: 3.135V–3.63V.
- What is the operating temperature range?
- Standard: 0°C to +85°C; -V variant: -40°C to +85°C.
- Does it support SyncE (Synchronous Ethernet)?
- Yes.
- What MAC interface does it use?
- QSGMII or Q-USGMII.
- How many drivers/receivers are integrated?
- 4/4 (quad-port).
- Is Energy-Efficient Ethernet (EEE) supported?
- Yes.
- What cable types are compatible?
- CAT-5, CAT-5e, CAT-6.
Purchasing & Stock
- Where can I buy the LAN8814/ZMXC1?
- Through authorized distributors.
- What is the minimum order quantity (MOQ)?
- Typically 1 unit, with bulk discounts available.
- What is the price per unit?
- Varies by quantity and distributor.
- Is stock information updated in real-time?
- Typically refreshed every 24 hours.
- Can I order offline?
- Yes, through distributor order systems.
Shipping & Logistics
- What shipping options are available?
- DHL, FedEx, UPS, and other major carriers.
- What are the shipping costs?
- Depends on weight, destination, and shipping method.
- How long does delivery take?
- 2–5 days for express shipping.
- Can I track my order?
- Yes, tracking numbers are provided.
- Are there delays for documentation-heavy orders?
- Possible 1–2 day delays.
Warranty & Returns
- What is the warranty period?
- 1 year.
- What does the warranty cover?
- Defects in materials or workmanship.
- How do I initiate a return?
- Contact the distributor with a Return Authorization request.
- What are the return conditions?
- Unused, in original packaging.
- Do distributors inspect shipments before delivery?
- Some offer Pre-Shipment Inspections (PSI).
Technical Support
- Where can I find the datasheet?
- Available on Microchip’s website or distributor portals.
- Are application notes available?
- Yes, for IEEE 1588, TSN, and SyncE implementations.
- How do I contact technical support?
- Through Microchip’s support channels or distributor contacts.
- Does Microchip provide reference designs?
- Yes, for industrial and automotive applications.
- Are evaluation boards available?
- Yes, such as the LAN8814-RMG.
Certifications & Compliance
- What is the ECCN classification?
- 4A994.j or 5A992.c.
- What is the HTS code?
- 8542.39.0060.
- Is the part ISO certified?
- Complies with ISO 9001/IATF 16949 standards.
- Does it meet automotive standards?
- The -V variant is suitable for automotive applications.
- Is it lead-free?
- Yes.
Assembly & Integration
- Can PCB assembly services integrate this PHY?
- Yes, via SMT assembly.
- What is the MSL level?
- MSL 3.
- Do distributors offer free PCB assembly?
- Some may provide assembly services for bulk orders.
- How fast is PCBA turnaround?
- Typically 3–5 days.
- Can components be stored in a PCB assembly library?
- Yes, but shipping restrictions may apply.
Datasheet
LAN8814/ZMXC1 Microchip Technology datasheet
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