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Microchip Technology VSC8584XKS-11
- Part No.:
- VSC8584XKS-11
- Manufacturer:
- Microchip Technology
- Category:
- Telecom
- Package:
- 256-BGA
- Datasheet:
-
VSC8584XKS-11.pdf
- Description:
- IC TELECOM INTERFACE 256BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,928
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Product details
Overview
VSC8584XKS-11 from Microsemi (now Microchip) is a quad-port 10/100/1000BASE-T Ethernet PHY IC with integrated IEEE 1588v2 precision timing, MACsec encryption, Synchronous Ethernet, VeriTime™ cable diagnostics, and QSGMII/SGMII MAC interface. It supports full-duplex operation across all speeds, delivers ±50 ppb SyncE accuracy, and enables deterministic time-stamping for carrier-grade packet networks.
For engineers reviewing the VSC8584XKS-11 datasheet, VSC8584XKS-11 pinout, VSC8584XKS-11 application, or VSC8584XKS-11 equivalent, this device is selected for metro aggregation switches, IEEE 1588 boundary clocks, secure enterprise edge routers, and time-sensitive industrial Ethernet gateways requiring sub-100 ns timestamp resolution and hardware-accelerated MACsec.
Technical Context
The VSC8584XKS-11 implements four independent PHY lanes with dual SerDes interfaces: QSGMII/SGMII to MAC side and 1000BASE-X/100BASE-FX to media side. Each port supports autonegotiation, Energy Efficient Ethernet (EEE), and automatic MDI/MDIX crossover with ring resiliency protocol support.
Its IEEE 1588v2 block includes one-step end-to-end transparent clock (E2E TC), two-step boundary clock (BC), Y.1731 delay measurement, and serial time stamp output. The MACsec engine operates inline at line rate with AES-128-GCM encryption and per-packet integrity verification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Supports 10/100/1000 Mbps per port - enables mixed-speed port configurations in a single chip without external retimers. |
| IEEE 1588 Accuracy | ±50 ppb SyncE holdover stability - meets ITU-T G.8262 for ePRTC Class C timing in telecom infrastructure. |
| MACsec Throughput | Full-line-rate 1 Gbps encryption/decryption per port - no packet buffering latency or throughput penalty. |
| VeriTime™ Resolution | Sub-meter cable length estimation (±1m) - enables remote fault isolation without physical access to cabling. |
| Power Consumption | Typical 1.9 W @ 4×1000BASE-T - optimized for dense 1RU switch designs with thermal constraints. |
| Reference Clock | 25 MHz or 125 MHz single-ended/differential input - supports legacy and high-precision clock tree architectures. |
| Operating Temp | –40°C to +85°C industrial grade - qualified for outdoor cabinet and central office deployment. |
Pinout & Package
Package: 256-pin 15 mm × 15 mm × 1.0 mm LFBGA (XKS suffix), RoHS-compliant, 0.8 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MDC / MDIO | Serial Management Interface | IEEE 802.3-compliant SMI bus for register configuration and status readback across all four PHYs. |
| REFCLK_IN | Reference Clock Input | Accepts 25 MHz (1000BASE-T) or 125 MHz (1000BASE-X) clock; configurable via strap pins or register. |
| PPS_OUT[0:1] | Pulse Per Second Output | Dual programmable PPS outputs synchronized to IEEE 1588 grandmaster; jitter <1 ns RMS. |
| TSO[0:3] | Time Stamp Output | Four-channel LVDS serial time stamp interface supporting IEEE 1588 event message tagging. |
| QSGMII_RX[0:3]/TX[0:3] | Quad-SGMII MAC Interface | 4-lane 2.5 Gbps differential interface to switch fabric or MAC - eliminates need for external serializer. |
Key Features
| Feature | Design Value |
|---|---|
| IEEE 1588v2 Hardware Timestamping | Per-packet ingress/egress timestamping with ≤100 ns resolution and hardware-based correction for internal delays. |
| MACsec Encryption Engine | Inline AES-128-GCM encryption/decryption with zero-latency pipeline - no frame store-and-forward overhead. |
| VeriTime™ Cable Diagnostics | Real-time TDR-based fault location and cable length measurement up to 100 m - replaces external TDR tools. |
| Synchronous Ethernet Support | ITU-T G.8262-compliant EEC Option 2 clock recovery - enables phase-aligned distribution across multi-chassis systems. |
| ActiPHY Power Management | Three-state low-power mode (LPI, Wake-Up, Normal) reducing idle power by 65% vs. legacy PHYs. |
Applications
| Mobile Fronthaul Gateway | Secure Enterprise Edge Router |
|---|---|
Use Scenario: Aggregating CPRI/eCPRI traffic from 5G RRUs over fiber and copper with strict timing alignment. IC Role / Device Role / Timing Role: IEEE 1588 boundary clock and SyncE slave, providing phase-locked 1PPS and frequency reference to fronthaul radios. Use Value: Achieves <100 ns time error between distributed units - meets 3GPP TR 38.801 fronthaul synchronization requirements. |
Use Scenario: Securing WAN-facing Ethernet ports against Layer 2 man-in-the-middle attacks in financial data centers. IC Role / Device Role / Timing Role: Line-rate MACsec encryptor/decryptor with hardware key management and replay protection. Use Value: Eliminates software-based crypto bottlenecks while maintaining full 1 Gbps throughput per port. |
| Carrier Ethernet Aggregation Switch | Industrial Time-Sensitive Networking Gateway |
Use Scenario: Building resilient metro rings with sub-50 ms failover using ITU-T G.8032 ERPS and ring resiliency features. IC Role / Device Role / Timing Role: Quad-port PHY with embedded ring protocol state machine and fast link failure detection. Use Value: Enables hardware-accelerated ring topology management without CPU intervention or external controllers. |
Use Scenario: Bridging PROFINET IRT and TSN endpoints in smart factory PLC cabinets with deterministic latency. IC Role / Device Role / Timing Role: Precision timestamping node synchronized to IEEE 802.1AS grandmaster clock. Use Value: Delivers sub-microsecond time alignment across heterogeneous industrial protocols via hardware timestamp injection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-port Gigabit Ethernet PHY applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Marvell Alaska 88E1512 | Lacks IEEE 1588v2 hardware timestamping and MACsec; supports only basic SGMII and RGMII MAC interfaces. | Suitable for cost-sensitive enterprise switches where security and precision timing are not required. | Select when budget constraints outweigh need for carrier-grade timing or encryption. |
| Intel Ethernet PHY I210-IT | Single-port design; no QSGMII support; limited to PCIe host interface and basic 1588 software assist. | Targeted at embedded x86 platforms with integrated MAC, not standalone switch fabric interconnect. | Choose only for PC-based industrial controllers needing minimal footprint and PCIe integration. |
Compared with VSC8584XKS-11, the 88E1512 offers lower power and cost but omits critical carrier-class features like hardware 1588 and MACsec, while the I210-IT lacks multi-port scalability and true hardware timestamping-making VSC8584XKS-11 the sole option for quad-port, secure, time-synchronized Ethernet edge nodes.
Availability
VSC8584XKS-11 is available at Aetrix Electronics and suitable for mobile fronthaul gateways, carrier Ethernet aggregation switches, secure enterprise edge routers, and industrial time-sensitive networking gateways requiring stable component supply and long-term lifecycle assurance.
Supply support for VSC8584XKS-11 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
Microsemi, now part of Microchip Technology, specializes in high-reliability semiconductor solutions for aerospace, defense, communications, and industrial markets-with emphasis on timing, security, and signal integrity.
The VSC8584XKS-11 belongs to Microsemi's Carrier Ethernet PHY product line, engineered specifically for metro and access network equipment demanding IEEE 1588v2, MACsec, and Synchronous Ethernet compliance.
FAQ
What is the primary function of the VSC8584XKS-11 in a network system?
The VSC8584XKS-11 serves as a quad-port 10/100/1000BASE-T Ethernet PHY with integrated IEEE 1588v2 timestamping, MACsec encryption, and Synchronous Ethernet recovery. It bridges MAC-layer devices to copper or fiber media while delivering hardware-level timing accuracy and line-rate security-making it essential in carrier-grade switches, boundary clocks, and secure edge routers where deterministic latency and cryptographic integrity are mandatory. The VSC8584XKS-11 enables these functions without external co-processors or FPGA offload.
Does the VSC8584XKS-11 support both QSGMII and SGMII MAC interfaces?
Yes, the VSC8584XKS-11 natively supports both QSGMII and SGMII MAC interfaces on the same physical pins, configurable per port via register settings. QSGMII allows consolidation of four 1 Gbps lanes into a single 5 Gbps differential pair, reducing PCB layer count and routing complexity versus discrete SGMII. This flexibility lets system designers choose between high-density switch fabrics (QSGMII) or simpler point-to-point MAC connections (SGMII), all supported by the same VSC8584XKS-11 silicon.
How does the VeriTime™ feature in the VSC8584XKS-11 improve field maintenance?
VeriTime™ in the VSC8584XKS-11 performs time-domain reflectometry (TDR) directly within the PHY to detect and locate cable faults-including opens, shorts, and impedance mismatches-without external test equipment. It reports distance-to-fault with ±1 m resolution and identifies cable type (Cat5e/Cat6). This capability reduces truck rolls and manual diagnostics in deployed networks, especially in distributed 5G fronthaul or campus Ethernet installations where physical access is limited. The VSC8584XKS-11 executes VeriTime™ autonomously during link initialization or on-demand via MDIO command.
Can the VSC8584XKS-11 operate as an IEEE 1588 boundary clock?
Yes, the VSC8584XKS-11 implements full IEEE 1588v2 boundary clock functionality including one-step and two-step modes, Y.1731 delay measurement, and hardware-assisted best master clock selection. It synchronizes its local time counter to a grandmaster via PTP messages, then regenerates precise 1PPS and frequency outputs for downstream devices. Its ±50 ppb SyncE holdover and sub-100 ns timestamp resolution meet ITU-T G.8262 ePRTC Class C requirements-making the VSC8584XKS-11 suitable as a primary timing anchor in carrier Ethernet aggregation nodes.
What power management features does the VSC8584XKS-11 include?
The VSC8584XKS-11 integrates ActiPHY power management with three operational states: Low Power Idle (LPI), Link Partner Wake-Up, and Normal Operation. In LPI mode, it reduces dynamic power by 65% while retaining link status and enabling rapid wake-up (<100 µs). It supports Energy Efficient Ethernet (EEE) per IEEE 802.3az and auto-negotiates LPI entry/exit with compliant partners. These features allow the VSC8584XKS-11 to meet stringent thermal budgets in fanless 1RU switches and outdoor base station enclosures without sacrificing link reliability.
VSC8584XKS-11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 256-BGA
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Ethernet
- Interface:
- GMII, SerDes, SPI, TBI
- Number of Circuits:
- 1
- Voltage - Supply:
- 1V
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 256-PBGA (17x17)
VSC8584XKS-11 FAQ
1.How can I place an order for VSC8584XKS-11 through Aetrix?
Please submit a Request for Quotation (RFQ) for VSC8584XKS-11 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 VSC8584XKS-11 reliable?
The price and inventory of VSC8584XKS-11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VSC8584XKS-11 is usually 5 days.
3.What payment methods are accepted for VSC8584XKS-11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VSC8584XKS-11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VSC8584XKS-11?
VSC8584XKS-11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VSC8584XKS-11 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 VSC8584XKS-11?
For technical support, including VSC8584XKS-11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VSC8584XKS-11 requirements.
6.How does Aetrix verify that VSC8584XKS-11 is sourced from the original manufacturer or authorized distributors?
All VSC8584XKS-11 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 VSC8584XKS-11 meets industry standards.
7.What is the process for return or replacement of VSC8584XKS-11?
All VSC8584XKS-11 units undergo pre-shipment inspection (PSI). If there is an issue with VSC8584XKS-11, 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 VSC8584XKS-11 part is unused and in its original packaging.
Return procedure for VSC8584XKS-11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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