VSC8514XMK - Quad-Port Gigabit Ethernet PHY | Microchip
MPN: VSC8514XMK ✓ פעילVSC8514XMK סקירה
A Gigabit Ethernet PHY (physical layer transceiver) is the interface IC that connects a Media Access Controller (MAC) to the physical copper or fiber medium. It performs line coding, serial-deserialization, equalization, and auto-negotiation per the IEEE 802.3 Ethernet standards, sitting at the bottom of the network stack hierarchy: PHY transceiver -> Ethernet interface IC -> networking IC -> system-on-chip. In broadband gateways, enterprise switches, and carrier equipment, the PHY is the component that ultimately determines link robustness and power efficiency.
Key features of the VSC8514 include quad-port integration, which halves board area and power versus four discrete single-port PHYs; energy-efficient Ethernet (EEE) support for idle-link power savings in broadband and data center designs; and flexible host-side interfaces including QGMII (Quad Gigabit Media Independent Interface) alongside JTAG and SerDes connectivity for system configuration and high-speed interconnect. Carrier-grade capabilities such as TDM backhaul support make it suitable for wireless base station backhaul and transport equipment.
Architecturally, the VSC8514 integrates four independent 1000BASE-T/100BASE-TX/10BASE-T copper PHY cores with on-chip DSP-based equalization and echo cancellation, delivered from Microchip's (formerly Microsemi's) Telecom products division. Per-port link status monitoring and industrial temperature operation (-40C to +110C per distributor listings) support unmanaged aggregation equipment deployed in harsh environments. Suffix variants such as XMK-11 and XMK-14 define temperature grade and feature sets (for example, the -14 variant omits SyncE).
Typical applications include energy-efficient broadband gateways, enterprise and data center switching platforms, carrier TDM backhaul equipment, wireless base station backhaul, and industrial network aggregation nodes where multi-port density and low standby power are priorities.
A key design consideration is thermal management: four active GE PHY cores in a single 12x12 mm QFN demand a well-designed exposed-pad PCB land pattern with multiple thermal vias into a ground plane; also confirm the correct suffix for your temperature range and SyncE requirements before committing the layout.
This page synthesizes distributor availability across multiple channels, same-family drop-in variant analysis, application guidance, and comparison tables not found on the manufacturer's own product page, giving engineers a complete single-source view for selection and BOM decisions.
חלופות תחליף ישיר עבור VSC8514XMK — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם VSC8514XMK (אותו גורם צורה וטביעת רגל) — שונים ב Package, Power Management, Synchronous Ethernet.
VSC8514XMK-11
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
VSC8514XMK-14
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←VSC8514XMK-DC
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
VSC8514XMK-03
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←VSC8514XMK מפרטים
| Ports | 4 (Quad-port Gigabit Ethernet PHY) |
| Ethernet Speed | 10/100/1000BASE-T |
| Host Interface | QGMII |
| Additional Interfaces | JTAG, SerDes |
| Energy-Efficient Ethernet | Supported (EEE) |
| TDM Backhaul | Supported |
| Link Status Monitoring | Per-port link status monitoring |
| מארז | 138-pin QFN (12 x 12 mm), exposed thermal pad |
| Package Code | XMK |
| טמפרטורת פעולה | -40C to +110C (per distributor listing) |
| סוג הרכבה | Surface Mount |
| Application Target | Broadband gateways, data centers, enterprise networks, carrier backhaul |
מדריך תצורת פינים של VSC8514XMK xmk
תצורת פינים עבור VSC8514XMK (מארזת xmk). מספרי פינים, פונקציות ותרשימי חיבורים מוגדרים ב-Datasheet של היצרן. יש לעיין בו לקבלת ה-footprint המדויק והנחיות הלחמה.
אין נתוני פריסת פינים מפורטים עבור VSC8514XMK.
עיינו ב- גיליון נתונים עבור תצורת פינים מלאה.
יישומים טיפוסיים
VSC8514XMK מתאים עבור 6 יישוםs: Energy-Efficient Broadband Gateways, Enterprise and Data Center Switching, Carrier TDM Backhaul Equipment, Wireless Base Station Backhaul, Industrial Network Aggregation Nodes, Networked Security and Surveillance Systems.
Energy-Efficient Broadband Gateways
The VSC8514XMK fits multi-port residential and SOHO broadband gateways where four Gigabit copper ports must terminate on a single compact IC. Its integrated quad PHY replaces four discrete single-port transceivers, cutting board area and BOM count, while energy-efficient Ethernet (EEE) support reduces power during idle link periods - a key metric for always-on gateway hardware subject to energy-efficiency regulations. The QGMII host interface connects directly to gateway SoCs that aggregate four ports on one interface. Designers should pair the PHY with 1000BASE-T magnetics and verify the exposed thermal pad land pattern, since four simultaneous GE links in a 12x12 mm QFN concentrate heat on the center pad.
מומלץ
Enterprise and Data Center Switching
In enterprise access switches and data center management ports, the VSC8514XMK provides four 10/100/1000BASE-T copper PHY circuits with per-port link status monitoring, enabling dense switch line cards with fewer ICs. Microchip positions the VSC8514 family for enterprise networks and data centers, where low-power operation lowers total chassis power budgets across many ports. The SerDes interface supports high-speed system-side connectivity for switch ASIC platforms that require serialized PHY attachment. Engineers should confirm the suffix variant early: the -14 grade omits SyncE, which matters in enterprise designs that carry Synchronous Ethernet timing across the aggregation hierarchy.
מומלץ
Carrier TDM Backhaul Equipment
Microchip explicitly targets the VSC8514 at carrier applications including TDM backhaul, where legacy TDM traffic is carried over packet-switched Ethernet networks. The VSC8514XMK's quad-port copper integration and per-port link monitoring support aggregation nodes that bridge cellular backhaul traffic, and its industrial temperature rating (-40C to +110C per distributor listings) suits outdoor cabinets and unconditioned telecom vaults. Because carrier timing chains often depend on Synchronous Ethernet, designers must select a suffix variant with SyncE support (noting the -14 variant excludes it). The 138-QFN exposed pad must be grounded through multiple thermal vias to survive extended high-ambient-temperature operation.
מומלץ
Wireless Base Station Backhaul
The VSC8514XMK serves wireless base station backhaul links, where Microchip lists the VSC8514 family as supporting carrier applications with two SerDes interfaces for high-speed system attachment. Quad copper GE ports provide management and fronthaul/backhaul connectivity in a single PHY, while EEE operation reduces radio-site power draw - increasingly important for battery-backed and solar-powered sites. The -40C to +110C operating range per distributor listings covers shelter-less outdoor radio units. Designers should route the SerDes lanes with controlled-impedance differential pairs on inner layers, and confirm JTAG accessibility on the production board for in-system PHY configuration and boundary-s chain testing.
מומלץ
Industrial Network Aggregation Nodes
Industrial automation networks use aggregation nodes that collect Ethernet traffic from PLCs, drives, and sensors; the VSC8514XMK's four integrated copper GE PHYs with per-port link status monitoring let a single IC terminate four plant-floor links. Its -40C to +110C rating per distributor listings supports sealed control cabinets near motors and heat sources, and EEE support trims idle power in continuously energized installations. The QGMII interface attaches to industrial gateway processors carrying Modbus/TCP, PROFINET, or OPC UA traffic. Engineers should qualify the PCB laminate for the 110C junction-adjacent temperatures and follow the datasheet magnetics reference design for surge-immune plant wiring interfaces.
מומלץ
Networked Security and Surveillance Systems
Multi-camera IP surveillance recorders and video walls benefit from the VSC8514XMK's quad copper GE integration: one PHY IC handles four camera uplinks, and per-port link status monitoring lets host software detect camera dropouts immediately. EEE operation is useful for links that idle between motion events, and the compact 12x12 mm 138-QFN fits space-constrained NVR mainboards. The SerDes interface supports connection to recording SoCs with serialized Ethernet attachment, while QGMII serves processors with quad-MII media interfaces. Pair with robust 1000BASE-T magnetics rated for the PoE-class currents used by camera power sourcing equipment designs.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור VSC8514XMK — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | VSC8514XMK-11 | VSC8514XMK-14 | VSC8514XMK-DC | VSC8514XMK-03 |
|---|---|---|---|---|---|
| Package | 138-QFN (12x12 mm, XMK) | 138-QFN (12x12 mm, XMK) - same | 138-QFN (12x12 mm, XMK) - same | 138-QFN (12x12 mm, XMK) - same | 138-QFN (12x12 mm, XMK) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Ports | 4-port GbE copper PHY | 4-port GbE copper PHY | 4-port GbE copper PHY | 4-port GbE copper PHY | 4-port GbE copper PHY |
מבדילים עיקריים
- Quad-port integration on one footprint (לעומתKSZ9031RNXC)
- Energy-efficient Ethernet (EEE) operation (לעומתVSC8514XMK-14)
- SerDes system-side attachment for carrier platforms (לעומתVSC8514XMK-11)
הערות תכנון
The VSC8514XMK concentrates four active Gigabit PHY cores in a 12x12 mm 138-QFN with an exposed thermal pad. Design the PCB land pattern with a solderable center pad tied to the ground plane through a grid of thermal vias (typically a 4x4 or denser array on production boards); relying on the pad without vias leaves heat trapped at the die. Verify junction temperature against the datasheet thermal resistance values for your airflow and copper area, especially in sealed industrial enclosures where the -40C to +110C ambient rating may be approached.
Route the four MDI differential pairs (one per port) at 100-ohm differential impedance with intra-pair length matching, keeping each pair away from the QGMII parallel bus and SerDes lanes. SerDes pairs should run on inner layers over a continuous ground reference with impedance per the datasheet land-pattern and layout section. Decouple every VDD pin with 0.1 uF ceramics placed within 2 mm of the pin, and add bulk capacitance per rail near the regulator. Follow the manufacturer reference design for magnetics selection and PoE-compatible component placement.
Suffix selection is the most common sourcing error on this family: the XMK-14 grade explicitly omits SyncE, and other suffixes differ in temperature grade. Lock the exact ordering code (for example VSC8514XMK-11 vs VSC8514XMK-14) against your temperature and timing requirements before finalizing the BOM, since all suffixes share the same footprint and look interchangeable on a layout. Also confirm MDIO management-bus pull-up values and boot-time strap settings against the datasheet register map - incorrect straps leave the PHY in an unexpected interface mode that appears as a dead link.
The 138-QFN (12x12 mm) is a multi-row QFN: escape routing from the inner rows requires via-in-pad or narrow 4-mil tracks between outer-row pads. Plan the footprint using the datasheet land-pattern drawing rather than copying single-row QFN footprints, and assign the JTAG header footprint on the board during the first layout pass so boundary-scan and register debugging remain possible on assembled production units. Reserve one MDIO/MDINT access point as a test pad for manufacturing link bring-up.
מידע על תאימות
Compliance status not stated in the retrieved distributor or manufacturer listings; confirm RoHS/REACH status on the Microchip product page or certificate of conformance before release.
