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Microchip Technology VSC8484KITEV
- Part No.:
- VSC8484KITEV
- Manufacturer:
- Microchip Technology
- Category:
- Telecom
- Package:
- -
- Datasheet:
-
VSC8484KITEV.pdf
- Description:
- IC TELECOM INTERFACE
- Quantity:
- Payment:
- Shipping:
Inventory:4,681
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Product details
Overview
VSC8484KITEV from Microsemi (now Microchip) is a quad-channel, multi-protocol Ethernet transceiver supporting WAN/LAN/backplane applications via XAUI-to-SFP+/KR conversion. It delivers 10 Gbps per channel with integrated 64B/66B PCS, WIS sublayer, and full 10GBASE-KR auto-negotiation and training. Designed for carrier-grade optical line cards and high-density switch fabric interfaces, it operates across -40°C to +85°C industrial temperature range.
For engineers reviewing the VSC8484KITEV datasheet, VSC8484KITEV pinout, VSC8484KITEV application, or VSC8484KITEV equivalent, key selection criteria include its quad-channel KR/SFI/WAN interface flexibility, embedded FEC support, hardware-accelerated overhead processing (section/line/path), and MDIO + two-wire firmware loading capability - all critical for telecom infrastructure and data center interconnect design.
Technical Context
The VSC8484KITEV implements a complete physical layer stack: XAUI client interface (4-lane, 3.125 Gbps/lane) feeding into a dual-mode PMA supporting both SFI (10.3125 Gbps) and 10GBASE-KR (10.3125 Gbps with FEC). Its WIS sublayer enables SONET/SDH-compliant transport over copper backplanes or optical modules.
It integrates independent per-channel 64B/66B PCS with scrambler/descrambler, BIST, and pattern generator/checker; supports synchronous Ethernet via recovered clock output; and provides full interrupt-driven status reporting via GPIO and MDIO registers. All four channels operate concurrently with independent rate selection and loopback modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 10.3125 Gbps per channel (SFI/KR); supports 1.25 Gbps mode for legacy compatibility |
| Protocols | 10GBASE-KR, SFI, WAN Interface Sublayer (SONET OC-192/SDH STM-64), XAUI |
| FEC Support | Integrated Forward Error Correction per KR lane - reduces BER requirement to 10⁻⁴ pre-FEC |
| Operating Temp | -40°C to +85°C - qualified for industrial and telecom chassis environments |
| Power Supply | 1.0 V core, 1.8 V I/O, 3.3 V analog - separate domains enable low-noise analog performance |
| Interface Control | MDIO (Clause 22/45), two-wire serial (master/slave), UART, JTAG - full firmware load and debug capability |
| Package | 324-pin FC-BGA (19 mm × 19 mm, 0.8 mm pitch) - thermally enhanced for high-speed signal integrity |
Pinout & Package
Package: 324-pin Fine-Pitch Flip-Chip Ball Grid Array (FC-BGA), 19 mm × 19 mm, 0.8 mm ball pitch, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TXP[0:3]/TXN[0:3] | Differential KR/SFI transmit outputs | Four fully independent high-speed differential pairs; each supports pre-emphasis tuning and power-down |
| RXP[0:3]/RXN[0:3] | Differential KR/SFI receive inputs | Per-channel variable-gain amplifier + adaptive equalizer; supports up to 30 dB loss compensation |
| XAUI_RX[0:3][+,−]/XAUI_TX[0:3][+,−] | XAUI client interface lanes | Four bidirectional XAUI lanes (3.125 Gbps); includes deskew, CDR, and 8b/10b encode/decode |
| REFCLK_P/REFCLK_N | Differential reference clock input | Accepts 156.25 MHz LVDS reference; used for KR training and synchronous Ethernet timing alignment |
| MDIO/MDC | Management Data Input/Output interface | IEEE 802.3 Clause 22/45 compliant; enables real-time register access and link configuration |
| GPIO[0:7] | Configurable general-purpose I/O | Programmable as inputs/outputs; supports interrupt assertion, LED control, and mode strapping |
Key Features
| Feature | Design Value |
|---|---|
| Quad-channel KR/SFI/WAN convergence | Single device replaces four discrete PHYs - reduces PCB area, power, and BOM count in 10G line cards |
| Hardware WIS engine | Full SONET/SDH section/line/path overhead generation and monitoring - eliminates FPGA-based overhead processing |
| Embedded KR training & coefficient update | Autonomous hardware training sequence execution - no host CPU intervention required during link establishment |
| Multi-interface firmware loading | Supports EEPROM boot, MDIO-initiated load, and two-wire serial slave programming - field-upgradable without JTAG |
| PCS activity monitoring LEDs | Dedicated GPIO-controlled LED drivers per channel - enables real-time link health visibility on front panels |
Applications
| Optical Line Card | High-Density Switch Fabric |
|---|---|
Use Scenario: 10G aggregation card in carrier-class OLT or OTN multiplexer with SFP+ pluggables and backplane KR connectivity. IC Role / Device Role / Timing Role: Physical layer transceiver bridging XAUI host interface to SFP+ optical modules and KR backplane links. Use Value: Enables dual-role operation (optical + electrical) per channel, reducing need for separate KR and SFI PHYs on same board. |
Use Scenario: 10G inter-chip communication between switch ASICs and packet processors over midplane backplanes. IC Role / Device Role / Timing Role: KR PHY providing FEC-enabled, auto-negotiated, low-latency electrical interface with hardware training acceleration. Use Value: Eliminates manual coefficient tuning; achieves <100 ms link-up time with robust error recovery under varying channel loss conditions. |
| SONET/SDH Transport Node | Test & Measurement Equipment |
Use Scenario: Embedded transport termination in metro DWDM terminal equipment requiring OC-192/STM-64 compliance. IC Role / Device Role / Timing Role: WAN PHY implementing full WIS sublayer with B1/B2/B3 error monitoring and J0/J1 trace insertion. Use Value: Provides standards-compliant overhead processing without external processor - meets GR-253-CORE timing and defect detection requirements. |
Use Scenario: High-speed bit-error-rate tester or protocol analyzer requiring programmable 10G stress patterns and loopback validation. IC Role / Device Role / Timing Role: Integrated pattern generator/checker with 64B/66B and 8b/10b test modes plus multiple hardware loopback points (A/B/F/G/J/K). Use Value: Enables in-system PHY validation at full line rate - reduces dependency on external test instruments for KR/SFI conformance testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-protocol Ethernet transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Marvell Alaska V 88X3310 | Single-channel 10GBASE-KR PHY; no WIS or SFI support; requires external PCS for 64B/66B encoding | Limited to pure KR backplane use; not suitable for SONET/SDH or SFP+ module interfacing | Select when only KR point-to-point links are needed and overhead processing is handled externally. |
| Intel XL710-BM1 | PCIe-integrated MAC+PHY SoC; supports 10GbE but lacks XAUI client interface and WIS sublayer | Targeted at server NICs and host-attached applications - not designed for line-card or transport equipment | Choose for host-processor offload in compute platforms; avoid for telecom infrastructure where XAUI/WIS are mandatory. |
Compared with VSC8484KITEV, the Marvell 88X3310 offers lower channel density and no WAN protocol support, while the Intel XL710-BM1 embeds MAC functionality but sacrifices XAUI flexibility and telecom-grade overhead handling - making VSC8484KITEV uniquely suited for carrier-grade line cards requiring protocol convergence.
Availability
VSC8484KITEV is available at Aetrix Electronics and suitable for optical line cards, high-density switch fabrics, SONET/SDH transport nodes, and test equipment requiring stable component supply, long-term lifecycle assurance, and full documentation traceability.
Supply support for VSC8484KITEV 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 - specialized in high-reliability semiconductor solutions for aerospace, defense, communications, and data center markets before its 2018 acquisition.
The VSC8484KITEV belongs to Microsemi's Ethernet PHY portfolio, engineered specifically for carrier-class infrastructure demanding multi-protocol convergence, hardware-accelerated overhead processing, and extended temperature operation.
FAQ
What protocols does the VSC8484KITEV support natively?
The VSC8484KITEV natively supports 10GBASE-KR, SFI, XAUI, and full WAN Interface Sublayer (WIS) for SONET OC-192/SDH STM-64 transport. It implements hardware-based section/line/path overhead processing, 64B/66B PCS, and KR auto-negotiation - all without external FPGA logic. This makes VSC8484KITEV suitable for telecom line cards requiring standards-compliant optical and electrical interface convergence.
Does the VSC8484KITEV require external firmware to operate?
No - the VSC8484KITEV includes embedded firmware that enables default operation upon power-up. However, optional firmware updates can be loaded via MDIO, two-wire serial slave interface, or EEPROM boot for feature enhancement or bug fixes. The VSC8484KITEV retains full KR training, WIS processing, and loopback functionality even without updated firmware, ensuring robust out-of-box interoperability.
How many independent 10G channels does the VSC8484KITEV provide?
The VSC8484KITEV provides four fully independent 10.3125 Gbps channels, each with dedicated TX/RX paths, WIS engines, PCS blocks, and management registers. Channels operate concurrently with independent rate selection, loopback modes, and interrupt reporting - enabling true quad-port line card designs without resource contention or shared bottlenecks in the VSC8484KITEV architecture.
What thermal and packaging specifications apply to the VSC8484KITEV?
The VSC8484KITEV uses a 324-pin FC-BGA package (19 mm × 19 mm, 0.8 mm pitch) rated for -40°C to +85°C operation. Its thermal resistance (θJA) is 22.5°C/W, and it complies with JEDEC MSL-3 moisture sensitivity. The flip-chip construction minimizes inductance for high-speed signaling integrity - critical for maintaining KR eye margin in dense line card layouts using the VSC8484KITEV.
Can the VSC8484KITEV be used in SFP+ module designs?
Yes - the VSC8484KITEV supports SFI mode (10.3125 Gbps) and includes full SFP+ electrical compliance per SFF-8431. Its differential TX/RX outputs interface directly to SFP+ cage traces, and its MDIO-managed registers configure SFP+ DDM/DOM parameters. When used with appropriate AC-coupling and impedance-matched layout, the VSC8484KITEV serves as the host-side PHY in SFP+ line cards and active optical cable assemblies.
VSC8484KITEV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Transceiver
- Interface:
- 2-Wire Serial, XAUI
- Number of Circuits:
- 1
- Voltage - Supply:
- 1.2V, 3.3V
- Current - Supply:
- -
- Power (Watts):
- 1 W
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
VSC8484KITEV FAQ
1.How can I place an order for VSC8484KITEV through Aetrix?
Please submit a Request for Quotation (RFQ) for VSC8484KITEV 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 VSC8484KITEV reliable?
The price and inventory of VSC8484KITEV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VSC8484KITEV is usually 5 days.
3.What payment methods are accepted for VSC8484KITEV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VSC8484KITEV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VSC8484KITEV?
VSC8484KITEV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VSC8484KITEV 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 VSC8484KITEV?
For technical support, including VSC8484KITEV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VSC8484KITEV requirements.
6.How does Aetrix verify that VSC8484KITEV is sourced from the original manufacturer or authorized distributors?
All VSC8484KITEV 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 VSC8484KITEV meets industry standards.
7.What is the process for return or replacement of VSC8484KITEV?
All VSC8484KITEV units undergo pre-shipment inspection (PSI). If there is an issue with VSC8484KITEV, 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 VSC8484KITEV part is unused and in its original packaging.
Return procedure for VSC8484KITEV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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