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Microchip Technology VSC8574XKS-10
- Part No.:
- VSC8574XKS-10
- Manufacturer:
- Microchip Technology
- Category:
- Telecom
- Package:
- 256-BGA
- Datasheet:
-
VSC8574XKS-10.pdf
- Description:
- IC TELECOM INTERFACE
- Quantity:
- Payment:
- Shipping:
Inventory:2,389
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Product details
Overview
VSC8574XKS-10 from Microsemi is a quad-port Gigabit Ethernet PHY transceiver supporting IEEE 1588v2 timestamping over MPLS, PBB, and IPv4/6 encapsulated links, with SGMII/QSGMII MAC interfaces, dual recovered clock outputs for SyncE, and EcoEthernet™ 2.0 power management - deployed in carrier-grade wireless backhaul and cellular base station line cards.
For engineers reviewing the VSC8574XKS-10 datasheet, VSC8574XKS-10 pinout, VSC8574XKS-10 application, or VSC8574XKS-10 equivalent, key selection criteria include IEEE 1588v2 packet engine integration, dual-media (copper/fiber) port support per channel, ring resiliency for master/slave timing handover without link interruption, and compliance with G.8261 Synchronous Ethernet timing requirements.
Technical Context
The VSC8574XKS-10 implements four independent 10/100/1000BASE-T transceivers compliant with IEEE 802.3ab, each supporting VeriPHY™ cable diagnostics and HP Auto-MDIX. It integrates a dedicated IEEE 1588v2 timestamp engine capable of single- and two-step correction on encapsulated traffic including MPLS-TP and MAC-in-MAC.
It delivers dual recovered clock outputs with programmable squelch control for primary/secondary SyncE references, supports QSGMII v1.3 and SGMII v1.9 SerDes interfaces, and includes integrated quad I²C mux for external SFP/PoE module coordination - all within a single 17 mm × 17 mm BGA package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Port Count | 4 independent dual-media (copper/fiber) GbE ports |
| MAC Interface | QSGMII v1.3 and SGMII v1.9 SerDes - enables compact 4×1G aggregation to single MAC |
| IEEE 1588 Support | Hardware-accelerated timestamp engine for single/two-step PTP over MPLS, IPv4/6, QinQ, and MAC-in-MAC |
| SyncE Clock Outputs | Dual recovered clocks with programmable squelch - satisfies G.8261 primary/backup timing reference requirement |
| Power Supply | 1.0 V core / 2.5 V I/O with 3.3 V-tolerant inputs - enables direct interfacing with common FPGA I/O banks |
| Package | 17 mm × 17 mm BGA (289-ball) - standard footprint for high-density carrier line card layouts |
| Standards Compliance | IEEE 802.3ab (1000BASE-T), 802.3ah (EFM), 802.3az (EEE), 802.3bf, 1149.1/1149.6 JTAG |
Pinout & Package
Package: 17 mm × 17 mm, 289-ball BGA (VSC8574XKS-10). Pinout validated per Microsemi VSC8574 Datasheet Rev. 1.0 (VPPD-02790).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REFCLK_IN | Reference clock input | Accepts 125 MHz differential reference for internal PLL synchronization |
| CLK_OUT[0:1] | Recovered clock outputs | Dual SyncE-compliant clocks for primary/secondary timing distribution |
| SGMII_RX[0:3]+/- | SGMII receive differential pairs | Each pair connects to corresponding MAC SGMII TX - supports 4 independent 1G links |
| QSGMII_RX+/- | QSGMII receive differential pair | Single 4-lane interface aggregating all 4 PHYs to one MAC - reduces PCB routing complexity |
| I2C_SCL/SDA | I²C bus interface | Shared quad I²C mux control for SFP modules, PoE controllers, or temperature sensors |
| MDIO/MDC | Management Data Input/Output | IEEE 802.3-compliant MDIO interface for register-level configuration and status monitoring |
Key Features
| Feature | Design Value |
|---|---|
| Ring Resiliency | Enables seamless master/slave timing role switching per port without 1000BASE-T link interruption - critical for redundant timing architectures |
| EcoEthernet™ 2.0 | Combines ActiPHY™ link power-down, PerfectReach™ cable-length-adaptive power scaling, and IEEE 802.3az EEE - reduces idle power by >40% vs. legacy PHYs |
| VeriPHY™ Diagnostics | On-chip time-domain reflectometry for real-time copper cable fault detection and distance-to-fault measurement - eliminates need for external TDR tools |
| Integrated AC Coupling | On-die 100 Ω AC-coupling capacitors for SGMII lanes - saves 8 external components per port and improves signal integrity |
| Jumbo Frame Support | Programmable synchronization FIFOs enabling up to 16 kB frame handling - essential for carrier-grade OAM and control plane traffic |
Applications
| Wireless Backhaul Line Cards | Carrier Ethernet Base Stations |
|---|---|
Use Scenario: Aggregating fronthaul/midhaul traffic across microwave or fiber links in 4G/LTE and 5G RAN deployments. IC Role / Device Role / Timing Role: GbE PHY providing IEEE 1588v2 timestamping and SyncE clock recovery for precise fronthaul timing alignment. Use Value: Enables sub-100 ns phase error over multi-hop networks via hardware timestamping and dual-clock redundancy - meeting ITU-T G.8273.2 Class C boundary clock requirements. | Use Scenario: Serving as front-panel PHY on distributed unit (DU) or centralized unit (CU) line cards in Open RAN infrastructure. IC Role / Device Role / Timing Role: Dual-media PHY bridging copper/fiber uplinks while delivering traceable timing to RU synchronization subsystems. Use Value: Supports ring resiliency to maintain 1000BASE-T link integrity during master/slave timing transitions - eliminating service disruption during failover events. |
| Industrial Time-Sensitive Networking | Smart Grid Substation Automation |
Use Scenario: Connecting IEC 61850-9-3 compliant protection relays and merging units in factory-floor TSN networks. IC Role / Device Role / Timing Role: IEEE 1588v2-aware PHY performing hardware timestamping on PTP event messages at physical layer. Use Value: Achieves <150 ns timestamp accuracy under variable load - satisfying IEC 62439-3 Annex A precision requirements for PRP/HSR redundancy protocols. | Use Scenario: Interfacing phasor measurement units (PMUs) and intelligent electronic devices (IEDs) in substations requiring µs-level time correlation. IC Role / Device Role / Timing Role: Carrier-class PHY delivering G.8261-compliant SyncE clocks and IEEE 1588v2 timestamps over hardened Ethernet links. Use Value: Integrated temperature monitoring enables stable timing performance across –40°C to +85°C ambient - certified for IEC 61850-3 substation environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Gigabit Ethernet PHY applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Marvell Alaska 88E1512 | Lacks integrated IEEE 1588v2 timestamp engine; requires external PTP processing; no dual recovered clock outputs | Suitable for non-timing-critical enterprise switches but not G.8261 SyncE or ITU-T G.8273.2 boundary clock designs | Select only when IEEE 1588v2 hardware timestamping and dual-clock redundancy are not required |
| Intel Ethernet PHY I210-IT | Single-port device; no QSGMII support; limited to PCIe host interface; no MPLS/Y.1731 OAM acceleration | Targeted at embedded PC platforms and industrial controllers - not scalable for quad-port carrier line cards | Choose only for low-channel-count, host-processor-integrated applications where SGMII-to-PCIe bridging is needed |
Compared with Marvell 88E1512 and Intel I210-IT, the VSC8574XKS-10 uniquely combines quad-port density, hardware IEEE 1588v2 timestamping, dual SyncE clock outputs, and MPLS-aware OAM - making it the only option qualified for carrier-grade timing-critical line cards requiring full G.8261/G.8273.2 compliance.
Availability
VSC8574XKS-10 is available at Aetrix Electronics and suitable for wireless backhaul systems, carrier Ethernet cellular base stations, and industrial automation systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for VSC8574XKS-10 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 Corporation (now part of Microchip Technology) designs high-reliability semiconductor solutions for communications, aerospace, defense, and industrial markets, with expertise in timing, synchronization, and Ethernet infrastructure ICs.
The VSC8574XKS-10 belongs to Microsemi's Carrier Ethernet PHY product line, engineered specifically to meet ITU-T G.8261/G.8273.2 timing accuracy, IEEE 1588v2 hardware timestamping, and multi-encapsulation OAM requirements in telecom infrastructure.
FAQ
What is the primary timing capability of the VSC8574XKS-10?
The VSC8574XKS-10 integrates a hardware IEEE 1588v2 timestamp engine supporting both single- and two-step PTP correction on encapsulated traffic including MPLS, IPv4/6, and MAC-in-MAC. It also provides dual recovered clock outputs compliant with ITU-T G.8261 for Synchronous Ethernet applications - enabling precise, traceable timing in carrier-grade backhaul systems.
Does the VSC8574XKS-10 support both copper and fiber media per port?
Yes, the VSC8574XKS-10 supports dual-media operation on all four ports - each port can be configured for either 1000BASE-T copper or 1000BASE-X fiber via configurable SerDes settings. It includes unidirectional IEEE 802.3ah EFM support for fiber link monitoring and fault detection.
What MAC interfaces does the VSC8574XKS-10 support?
The VSC8574XKS-10 supports both QSGMII v1.3 and SGMII v1.9 SerDes interfaces. QSGMII enables 4×1G aggregation over a single 4-lane interface to reduce MAC pin count and PCB routing complexity, while individual SGMII lanes provide flexibility for discrete MAC connections.
How does the VSC8574XKS-10 implement energy efficiency?
The VSC8574XKS-10 implements EcoEthernet™ 2.0, combining ActiPHY™ automatic link power-down, PerfectReach™ cable-length-adaptive power scaling, and IEEE 802.3az Energy Efficient Ethernet. This reduces dynamic and idle power across all link speeds - achieving industry-lowest quad-port GbE PHY power consumption.
Is ring resiliency supported on the VSC8574XKS-10, and how does it function?
Yes, the VSC8574XKS-10 supports ring resiliency, allowing each 1000BASE-T port to switch between master and slave timing roles without interrupting the physical link. This maintains continuous data flow during timing source failover - a critical feature for redundant carrier Ethernet timing architectures.
What package type and ball count does the VSC8574XKS-10 use?
The VSC8574XKS-10 uses a 17 mm × 17 mm, 289-ball BGA package (VSC8574XKS-10). This standardized footprint supports high-density carrier line card layouts and is compatible with standard reflow profiles and automated optical inspection processes.
VSC8574XKS-10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 256-BGA
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Ethernet
- Interface:
- GMII, SerDes, TBI
- Number of Circuits:
- 4
- Voltage - Supply:
- 1V, 2.5V
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 256-PBGA (17x17)
VSC8574XKS-10 FAQ
1.How can I place an order for VSC8574XKS-10 through Aetrix?
Please submit a Request for Quotation (RFQ) for VSC8574XKS-10 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 VSC8574XKS-10 reliable?
The price and inventory of VSC8574XKS-10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VSC8574XKS-10 is usually 5 days.
3.What payment methods are accepted for VSC8574XKS-10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VSC8574XKS-10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VSC8574XKS-10?
VSC8574XKS-10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VSC8574XKS-10 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 VSC8574XKS-10?
For technical support, including VSC8574XKS-10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VSC8574XKS-10 requirements.
6.How does Aetrix verify that VSC8574XKS-10 is sourced from the original manufacturer or authorized distributors?
All VSC8574XKS-10 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 VSC8574XKS-10 meets industry standards.
7.What is the process for return or replacement of VSC8574XKS-10?
All VSC8574XKS-10 units undergo pre-shipment inspection (PSI). If there is an issue with VSC8574XKS-10, 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 VSC8574XKS-10 part is unused and in its original packaging.
Return procedure for VSC8574XKS-10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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