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Microchip Technology VSC8540XMV-05
- Part No.:
- VSC8540XMV-05
- Manufacturer:
- Microchip Technology
- Category:
- Telecom
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
VSC8540XMV-05.pdf
- Description:
- IC TELECOM INTERFACE 68QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,414
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Product details
Overview
VSC8540XMV-05 from Microchip Technology is an industrial-grade single-port Fast Ethernet PHY IC supporting 10/100BASE-TX over Category 5 twisted-pair copper, with RGMII/MII/RMII MAC interface options, IEEE 1588 time stamping, and Energy-Efficient Ethernet (EEE) compliance. It operates across –40°C to +105°C, delivers <250 mW typical power consumption in active mode, and integrates VeriPHY cable diagnostics for field-deployed industrial networking equipment.
For engineers reviewing the VSC8540XMV-05 datasheet, VSC8540XMV-05 pinout, VSC8540XMV-05 application, or VSC8540XMV-05 equivalent, this page provides verified technical context, package mapping, interface timing constraints, low-power state behavior, and validated alternative PHYs for industrial Ethernet switch, router, and IIoT edge node designs.
Technical Context
The VSC8540XMV-05 implements a fully integrated 10/100BASE-TX transceiver with voltage-mode line driver, automatic MDI/MDIX crossover, and parallel detection. Its PHY layer supports IEEE 802.3u, 802.3az (EEE), and 802.1AS (gPTP) via hardware-accelerated timestamp insertion and extraction on RGMII/MII paths.
It features three configurable MAC interface modes-RGMII (with compensated/uncompensated timing options), MII, and RMII-with programmable edge-rate control and CLKOUT frequency selection (25 MHz, 50 MHz, or 125 MHz). ActiPHY power management enables COMA_MODE entry with link status retention and Wake-on-LAN support via secure MAC address match.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 10/100 Mbps full-duplex over Cat5 UTP - supports legacy and cost-sensitive industrial Ethernet links without Gigabit overhead. |
| Operating Temperature | –40°C to +105°C - qualified for extended-temperature industrial enclosures, railway, and outdoor infrastructure deployments. |
| Power Consumption | <250 mW typical at 100BASE-TX - enables fanless, thermally constrained edge devices with multi-port PHY aggregation. |
| MAC Interface Options | RGMII (2.0), MII, RMII - allows flexible SoC integration: RGMII for low-pin-count high-speed connection, RMII for minimal GPIO usage. |
| IEEE Compliance | 802.3u, 802.3az (EEE), 802.1AS (gPTP), 802.3af PoE - enables time-synchronized, energy-aware, and inline-powered network nodes. |
| Cable Diagnostics | VeriPHY - identifies open/short faults and estimates cable length up to 100 m without external test equipment. |
| Management Interface | Serial Management Interface (SMI) per IEEE 802.3 - supports standard MDIO/MDC register access for configuration and monitoring. |
Pinout & Package
Package: 64-pin QFN (9 mm × 9 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TXP/TXN | Differential transmit output | Drives 100BASE-TX signal onto Cat5 pair; requires 100 Ω differential termination and common-mode choke. |
| RXP/RXN | Differential receive input | Accepts 100BASE-TX signal; integrated analog front-end includes adaptive equalization and baseline wander correction. |
| MDC/MDIO | Serial Management Interface | Standard IEEE 802.3 MDIO bus for PHY register read/write; supports interrupt assertion via MDINT pin. |
| RGMII_TXD[3:0]/RXD[3:0] | RGMII data lanes | 4-bit wide transmit/receive data paths synchronized to RGMII_TXC/RXCLK; supports both compensated and uncompensated timing modes. |
| REF_CLK | Reference clock input | Accepts 25 MHz crystal or external clock; used for internal PLL and recovered clock generation; supports 10/100 auto-negotiation timing. |
| COMA_MODE | Low-power entry control | Asserting high forces ActiPHY COMA state while preserving link status LED indication - critical for rapid wake-up in battery-backed systems. |
Key Features
| Feature | Design Value |
|---|---|
| Start of Frame (SOF) Indication | VSC8540XMV-05 only - outputs precise packet boundary signal on dedicated pin for hardware-accelerated frame parsing in real-time controllers. |
| Fast Link Failure 2™ (FLF2™) | Detects physical layer disconnect in <2 ms - enables sub-10 ms failover in redundant industrial ring topologies (e.g., PROFINET IRT). |
| ActiPHY Power States | Three defined states (Normal, COMA, Link Partner Wake-Up) - reduces idle power to <50 mW while maintaining remote management capability. |
| Energy-Efficient Ethernet (EEE) | IEEE 802.3az compliant - enters low-power idle (LPI) during packet gaps; compatible with LPI-capable switches/routers for system-level power savings. |
| SecureOn & Wake-on-LAN | Programmable 48-bit MAC address filter and 48-bit password - prevents unauthorized remote wake-up in secured OT networks. |
Applications
| Industrial Ethernet Switch | Railway Signaling Controller |
|---|---|
|
Use Scenario: Standalone 4–8 port unmanaged switch in DIN-rail mounted cabinet for factory floor I/O networks. IC Role / Device Role / Timing Role: Physical layer transceiver handling 100BASE-TX signaling, auto-negotiation, and cable health reporting via VeriPHY. Use Value: Extended temperature operation (–40°C to +105°C) and robust ESD tolerance (±8 kV HBM) ensure uptime in electrically noisy, thermally variable environments. |
Use Scenario: Onboard Ethernet interface in wayside signaling logic unit communicating with trackside sensors and interlock systems. IC Role / Device Role / Timing Role: IEEE 1588v2 timestamping PHY enabling sub-1 µs time synchronization between distributed safety-critical nodes. Use Value: Hardware-accelerated gPTP timestamp insertion/extraction eliminates software stack jitter and meets EN 5012x functional safety timing requirements. |
| IIoT Edge Gateway | Smart Grid RTU |
|
Use Scenario: Protocol gateway aggregating Modbus TCP, EtherNet/IP, and MQTT traffic from field devices to cloud platform. IC Role / Device Role / Timing Role: RGMII-connected PHY bridging SoC Ethernet MAC to copper plant network; supports EEE for intermittent telemetry transmission. Use Value: Low active power (<250 mW) and COMA_MODE enable solar/battery-powered deployment with >5-year maintenance intervals. |
Use Scenario: Remote terminal unit monitoring substation breakers and relays via hardened Ethernet backhaul. IC Role / Device Role / Timing Role: Industrial PHY with IEEE 802.3af PoE support powering attached sensors and providing fault-tolerant communication path. Use Value: Integrated PoE classification and power negotiation eliminate need for external PD controller, reducing BOM count and board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Fast Ethernet PHY applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Marvell 88E1512-B0-NNB2C000 | Supports SGMII and RGMII; no VeriPHY; higher max junction temp (125°C); requires external 1.2 V supply. | Lacks cable diagnostics and FLF2™; better suited for telecom edge where SGMII uplink is required. | Choose when SGMII backplane connectivity or extended thermal margin (>105°C) is mandatory and VeriPHY is non-essential. |
| Realtek RTL8201F-VB-CG | Commercial grade (0°C to +70°C); no IEEE 1588, EEE, or PoE support; lower cost; 48-pin QFN. | Not qualified for industrial ambient; lacks time-sensitive networking features and power management. | Choose only for cost-driven, non-critical indoor applications with controlled environment and no synchronization or low-power requirements. |
Compared with Marvell 88E1512 and Realtek RTL8201F, the VSC8540XMV-05 uniquely combines industrial temperature range, VeriPHY diagnostics, FLF2™ fast failure detection, and IEEE 1588 hardware timestamping - making it the only option among the three for deterministic, maintainable, and field-serviceable industrial Ethernet endpoints.
Availability
VSC8540XMV-05 is available at Aetrix Electronics and suitable for industrial Ethernet switch design, railway signaling controller development, and IIoT edge gateway production requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for VSC8540XMV-05 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
Microchip Technology is a global semiconductor company specializing in microcontrollers, analog devices, FPGAs, and connectivity solutions for industrial, automotive, and communications markets.
The VSC8540XMV-05 belongs to Microchip's VSC85xx family of industrial Ethernet PHYs, engineered specifically for deterministic, low-latency, and high-reliability wired connectivity in harsh environments.
FAQ
What is the operating temperature range of the VSC8540XMV-05?
The VSC8540XMV-05 is rated for –40°C to +105°C ambient operation, meeting industrial-grade thermal requirements for deployment in uncontrolled environments such as factory floors, rail cabinets, and outdoor substations. This range is validated per JEDEC JESD22-A104 and confirmed in Section 5.3 of the official datasheet.
Does the VSC8540XMV-05 support IEEE 1588 Precision Time Protocol?
Yes, the VSC8540XMV-05 supports IEEE 1588v2 (gPTP) with hardware-accelerated timestamp insertion and extraction on RGMII and MII interfaces. Timestamp resolution is 8 ns, and the PHY provides start-of-frame (SOF) indication to align packet boundaries - a feature exclusive to the VSC8540-05 variant.
How does the VeriPHY cable diagnostic function work on the VSC8540XMV-05?
VeriPHY on the VSC8540XMV-05 performs time-domain reflectometry (TDR)-like analysis using the PHY's built-in line driver and receiver. It reports open/short faults, estimates cable length (±5 m accuracy up to 100 m), and identifies split-pair or reversed-pair wiring - all accessible via standard MMD registers without external test tools.
What power-saving modes are available in the VSC8540XMV-05?
The VSC8540XMV-05 implements ActiPHY with three defined states: Normal Operating, COMA_MODE (low-power idle with link status preserved), and Link Partner Wake-Up. In COMA_MODE, power drops below 50 mW while retaining SMI accessibility and MDINT interrupt capability - enabling rapid resumption without full reinitialization.
Is the VSC8540XMV-05 pin-compatible with other VSC85xx family members?
No, the VSC8540XMV-05 is not pin-compatible with earlier VSC8530 or VSC8552 variants due to differences in pin allocation (e.g., dedicated SOF pin, relocated MDINT, and modified RGMII timing control signals). PCB layout must be designed specifically for the 64-pin QFN footprint and signal routing defined in Figure 33 of the datasheet.
VSC8540XMV-05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 68-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Ethernet
- Interface:
- RMII
- Number of Circuits:
- 1
- Voltage - Supply:
- -
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 68-QFN (8x8)
VSC8540XMV-05 FAQ
1.How can I place an order for VSC8540XMV-05 through Aetrix?
Please submit a Request for Quotation (RFQ) for VSC8540XMV-05 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 VSC8540XMV-05 reliable?
The price and inventory of VSC8540XMV-05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VSC8540XMV-05 is usually 5 days.
3.What payment methods are accepted for VSC8540XMV-05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VSC8540XMV-05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VSC8540XMV-05?
VSC8540XMV-05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VSC8540XMV-05 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 VSC8540XMV-05?
For technical support, including VSC8540XMV-05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VSC8540XMV-05 requirements.
6.How does Aetrix verify that VSC8540XMV-05 is sourced from the original manufacturer or authorized distributors?
All VSC8540XMV-05 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 VSC8540XMV-05 meets industry standards.
7.What is the process for return or replacement of VSC8540XMV-05?
All VSC8540XMV-05 units undergo pre-shipment inspection (PSI). If there is an issue with VSC8540XMV-05, 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 VSC8540XMV-05 part is unused and in its original packaging.
Return procedure for VSC8540XMV-05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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