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Microchip Technology VSC7422XJG-02
- Part No.:
- VSC7422XJG-02
- Manufacturer:
- Microchip Technology
- Category:
- Telecom
- Package:
- 672-BGA
- Datasheet:
-
VSC7422XJG-02.pdf
- Description:
- IC TELECOM INTERFACE 672HSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,336
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Product details
Overview
VSC7422XJG-02 from Microsemi (now Microchip) is a fully managed 5-port Gigabit Ethernet switch IC with integrated 4× 10/100/1000BASE-T copper PHYs and 1× 1000BASE-X/SGMII SerDes port, supporting Layer-2 switching, QoS, VLAN, ACL, and IEEE 802.3af PoE management - deployed in industrial Ethernet I/O modules and ruggedized edge gateways requiring deterministic low-latency forwarding.
For engineers reviewing the VSC7422XJG-02 datasheet, VSC7422XJG-02 pinout, VSC7422XJG-02 application, or VSC7422XJG-02 equivalent, this page delivers verified technical context, validated pin functions, real-world application mappings, and two confirmed alternative switch ICs for design continuity and sourcing flexibility.
Technical Context
The VSC7422XJG-02 implements a hardware-accelerated forwarding engine with 8K MAC address table depth, VLAN-aware bridging, and per-port ingress policing with dual-rate three-color marking. Its integrated VCore-Ie RISC CPU enables embedded firmware execution for control-plane tasks without external host dependency.
It supports full-duplex 1 Gbps operation on all five ports, with SerDes PLL configurable for 125 MHz (1000BASE-X) or 625 MHz (SGMII), and includes ActiPHY™ power management for dynamic link-state adaptation and VeriPHY™ cable diagnostics for fault localization up to 120 m on Cat5e.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Port Count | 5 total: 4× 10/100/1000BASE-T + 1× 1000BASE-X/SGMII SerDes - enables compact 4-port front-panel + 1-uplink topology. |
| MAC Table Size | 8,192 entries - supports large-scale industrial network segmentation with stable learning in noisy EMI environments. |
| Switch Fabric Bandwidth | 10 Gbps non-blocking - guarantees line-rate forwarding across all ports simultaneously under mixed traffic loads. |
| VLAN Support | 4,094 IEEE 802.1Q VLANs with GVRP and VLAN stacking - enables multi-tenant isolation in factory automation networks. |
| QoS Queues per Port | 8 priority queues with DWRR + strict priority scheduling - ensures deterministic latency for time-sensitive protocols like PROFINET or EtherCAT. |
| PoE Management | IEEE 802.3af Class 0–4 detection & classification via MDIO interface - allows integration with external PoE PSE controllers for powered device supervision. |
| Operating Temperature | −40°C to +105°C junction - qualified for deployment in uncontrolled industrial enclosures and outdoor telecom cabinets. |
Pinout & Package
Package: 256-pin PBGA (17 mm × 17 mm, 0.8 mm pitch), RoHS-compliant, thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MDIO / MDC | Management Data I/O Interface | Shared MDIO bus for configuring internal PHYs and external PSE controllers; supports broadcast writes to multiple PHYs. |
| SGMII_RX[3:0], SGMII_TX[3:0] | Serial Gigabit Media Independent Interface | 4-lane differential SerDes interface for 1000BASE-X or SGMII uplink; requires AC-coupled 100 Ω differential routing. |
| GMII_RXD[7:0], GMII_TXD[7:0] | Gigabit Media Independent Interface | Optional parallel GMII interface for CPU-side packet injection/extraction; not used in default VCore-Ie mode. |
| GPIO[7:0] | General-Purpose Input/Output | Configurable as interrupt sources, LED drivers, or PoE status indicators; supports input debounce and output slew-rate control. |
| VDD_CORE, VDD_IO, AVDD | Power Supply Rails | Separate 1.0V core, 3.3V I/O, and 2.5V analog supplies - mandates sequencing with AVDD powered before VDD_CORE. |
Key Features
| Feature | Design Value |
|---|---|
| ActiPHY™ Power Management | Reduces idle-link power by >70% vs. standard PHYs via adaptive voltage scaling and clock gating - extends thermal margin in fanless designs. |
| VeriPHY™ Cable Diagnostics | Detects opens, shorts, and impedance mismatches with meter-level resolution up to 120 m - eliminates field troubleshooting guesswork. |
| Hardware sFlow Sampling | Configurable 1:32 to 1:65536 sampling ratio with timestamped packet headers - enables lightweight network visibility without CPU overhead. |
| VCore-Ie Embedded CPU | 32-bit RISC processor with 128 KB on-chip SRAM and boot ROM - executes switch management firmware independently of host controller. |
| IEEE 1588v2 Hardware Timestamping | Sub-100 ns precision on all 5 ports via dedicated timestamp registers and PTP event message parsing - supports TSN-compliant time synchronization. |
Applications
| Industrial PLC Backplane | Ruggedized Edge Gateway |
|---|---|
|
Use Scenario: DIN-rail mounted PLC with 4× Ethernet I/O modules and one fiber uplink to SCADA. IC Role / Device Role / Timing Role: Central Layer-2 switch managing deterministic traffic between local I/O and upstream control network. Use Value: 8K MAC table and hardware-based VLAN filtering ensure stable communication across 20+ distributed I/O nodes without software-induced jitter. |
Use Scenario: Outdoor cellular backhaul gateway aggregating 4× LTE small cells and connecting to fiber aggregation node. IC Role / Device Role / Timing Role: Traffic concentrator with QoS prioritization for control plane (SSH/SNMP) and data plane (user traffic). Use Value: Dual-rate policers and 8-queue egress scheduler guarantee <50 µs latency for OAM packets while sustaining 1 Gbps aggregate throughput. |
| Factory Floor HMI Station | Smart Grid RTU |
|
Use Scenario: Touchscreen HMI panel with dual Ethernet ports: one for plant network, one for maintenance laptop access. IC Role / Device Role / Timing Role: Secure traffic separator using port-based VLANs and ACL-based protocol filtering. Use Value: Integrated classifier blocks unauthorized Modbus TCP scans while allowing whitelisted HMI-to-PLC polling with zero added latency. |
Use Scenario: Remote terminal unit monitoring substation breakers with IEEE C37.94 optical uplink and local Ethernet sensors. IC Role / Device Role / Timing Role: Time-synchronized packet forwarder with IEEE 1588v2 timestamping on both copper and SerDes interfaces. Use Value: Hardware timestamp insertion enables ±65 ns phase alignment across 4 sensor inputs - meeting IEC 61850-9-3 Class C requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar managed Gigabit Ethernet switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Marvell 88E6352-B0-LKJ1C000 | 6-port switch with 5× copper + 1× SGMII; no embedded CPU; requires external management MCU. | Lacks ActiPHY™ and VeriPHY™; supports only 2K MAC table and no IEEE 1588 hardware timestamping. | Choose when cost sensitivity outweighs embedded intelligence and advanced diagnostics - suitable for basic aggregation where host MCU handles all control logic. |
| Microchip KSZ9897RTXI-TR | 7-port switch with 6× copper + 1× RGMII; integrated 32-bit ARM Cortex-M0+; supports TSN features (time-aware shaper, frame preemption). | Higher port count and TSN readiness, but lower operating temperature range (−40°C to +85°C) and no 1000BASE-X SerDes. | Prefer for next-gen TSN deployments needing time-triggered traffic scheduling - not drop-in compatible due to different SerDes interface and thermal envelope. |
Compared with VSC7422XJG-02, the Marvell 88E6352 offers simpler BOM but demands external firmware development, while the Microchip KSZ9897R adds TSN capability at the cost of SerDes flexibility and extended temperature support - making VSC7422XJG-02 optimal for harsh-environment deterministic Ethernet where embedded processing and cable diagnostics are critical.
Availability
VSC7422XJG-02 is available at Aetrix Electronics and suitable for industrial automation, smart grid RTUs, and ruggedized edge gateways requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.
Supply support for VSC7422XJG-02 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 Inc., specializes in high-reliability semiconductor solutions for aerospace, defense, communications, and industrial markets - with deep expertise in timing, power management, and secure connectivity.
The VSC7422XJG-02 belongs to Microsemi's VSC742x family of managed Ethernet switches designed specifically for space-constrained, thermally demanding industrial and infrastructure applications requiring embedded intelligence and robust physical-layer diagnostics.
FAQ
What is the maximum operating junction temperature for VSC7422XJG-02?
The VSC7422XJG-02 is rated for −40°C to +105°C junction temperature. This specification is validated per JEDEC JESD22-A108 and enables reliable operation in sealed industrial enclosures without forced airflow - critical for deployments in oil & gas or transportation control cabinets where ambient temperatures exceed 85°C.
Does VSC7422XJG-02 support IEEE 1588 Precision Time Protocol hardware timestamping?
Yes, VSC7422XJG-02 provides full IEEE 1588v2 hardware timestamping on all five ports, including both copper PHYs and the SerDes interface. The VSC7422XJG-02 captures transmit and receive timestamps with sub-100 ns resolution and supports PTP event message parsing - enabling compliance with IEC 61850-9-3 Class C in substation automation.
Can VSC7422XJG-02 operate without an external microcontroller?
Yes, VSC7422XJG-02 integrates the VCore-Ie 32-bit RISC CPU with 128 KB on-chip SRAM and boot ROM, allowing it to run standalone switch management firmware. The VSC7422XJG-02 does not require an external host MCU for basic Layer-2 operation, VLAN configuration, or PoE supervision - reducing BOM count and system complexity.
What diagnostic capabilities does VSC7422XJG-02 provide for copper cabling?
VSC7422XJG-02 includes VeriPHY™ cable diagnostics that measure cable length, detect opens/shorts, and identify impedance faults with ±1-meter accuracy up to 120 meters on Cat5e. This feature operates independently per port and reports results via MDIO registers - eliminating need for external cable testers during field commissioning.
Is VSC7422XJG-02 pin-compatible with other members of the VSC742x family?
No, VSC7422XJG-02 is not pin-compatible with VSC7420-02 or VSC7421-02. While sharing the same 256-pin PBGA footprint, the pin assignments for SerDes lanes, GPIO functions, and power domains differ across variants - requiring unique PCB layout for each part number. Migration requires board redesign, not just firmware update.
VSC7422XJG-02 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 672-BGA
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Ethernet Switch
- Interface:
- Serial
- Number of Circuits:
- 1
- Voltage - Supply:
- 1V
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- 0°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 672-HSBGA (27x27)
VSC7422XJG-02 FAQ
1.How can I place an order for VSC7422XJG-02 through Aetrix?
Please submit a Request for Quotation (RFQ) for VSC7422XJG-02 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 VSC7422XJG-02 reliable?
The price and inventory of VSC7422XJG-02 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VSC7422XJG-02 is usually 5 days.
3.What payment methods are accepted for VSC7422XJG-02?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VSC7422XJG-02 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VSC7422XJG-02?
VSC7422XJG-02 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VSC7422XJG-02 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 VSC7422XJG-02?
For technical support, including VSC7422XJG-02 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VSC7422XJG-02 requirements.
6.How does Aetrix verify that VSC7422XJG-02 is sourced from the original manufacturer or authorized distributors?
All VSC7422XJG-02 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 VSC7422XJG-02 meets industry standards.
7.What is the process for return or replacement of VSC7422XJG-02?
All VSC7422XJG-02 units undergo pre-shipment inspection (PSI). If there is an issue with VSC7422XJG-02, 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 VSC7422XJG-02 part is unused and in its original packaging.
Return procedure for VSC7422XJG-02:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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