My Inquiry
My Account
Microchip Technology VSC7442YIH-02
- Part No.:
- VSC7442YIH-02
- Manufacturer:
- Microchip Technology
- Category:
- Telecom
- Package:
- 672-BBGA, FCBGA
- Datasheet:
-
VSC7442YIH-02.pdf
- Description:
- IC TELECOM INTERFACE 672FCBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,732
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VSC7442YIH-02 from Microsemi (now Microchip) is a Layer 2/Layer 3 enterprise Gigabit Ethernet switch IC with integrated 10 Gbps SERDES links, supporting up to 24x 1G/2.5G ports and 2x 10G uplinks. It delivers hardware-accelerated forwarding, IEEE 1588v2 precision time stamping, and full PTP boundary clock functionality for telecom and industrial timing-critical networks.
For engineers reviewing the VSC7442YIH-02 datasheet, VSC7442YIH-02 pinout, VSC7442YIH-02 application, or VSC7442YIH-02 equivalent, key selection criteria include its 24-port L2/L3 switching capacity, Synchronous Ethernet (SyncE) compliance, hardware-based sFlow sampling, VLAN-aware QoS mapping, and support for IEEE 802.1Qca path control in carrier-grade access networks.
Technical Context
The VSC7442YIH-02 implements a multi-stage pipeline architecture with dedicated VCAP™ classifier engines (IS2, CLM, LPM), a shared hierarchical scheduler with per-queue congestion control, and a hardware rewriter supporting DSCP remarking, VLAN editing, and VStaX header insertion. Its Analyzer module handles frame classification, policing, mirroring, and statistics collection at line rate.
Timing is managed via dual-clock domains: one for SyncE recovery (ITU-T G.8262 compliant) and another for IEEE 1588v2 timestamping with sub-50 ns one-step hardware correction. The device supports both PTP transparent and boundary clock modes with multiple independent time domains and programmable I/O delay compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Capacity | 128 Gbps non-blocking throughput - enables full-duplex line-rate forwarding across all 24x 1G/2.5G + 2x 10G ports simultaneously. |
| Port Configuration | 24x 1G/2.5G DEV1G/DEV2G5 ports + 2x 10G DEV10G ports - supports mixed-speed aggregation with QSGMII and 10GBase-KR interfaces. |
| PTP Accuracy | <50 ns one-step timestamp resolution - meets ITU-T G.8275.1 telecom profile for boundary clocks in mobile fronthaul. |
| QoS Queues | 8 priority queues per port with WRR/SP scheduling - enables strict latency control for voice, video, and control traffic classes. |
| VLAN Support | 4K IEEE 802.1Q VLANs + Private VLAN + MSTP - provides scalable segmentation and loop prevention in metro Ethernet access networks. |
| Security Features | ACL-based port security, IP source guard, IGMP/MLD snooping, and CPU protection via frame filtering - prevents unauthorized access and DoS attacks at ingress. |
| sFlow Sampling | Hardware-accelerated sFlow v5 sampling at 1:1000–1:1M ratios - enables real-time network visibility without CPU overhead. |
Pinout & Package
The VSC7442YIH-02 is housed in a 484-pin FC-BGA package (19 mm × 19 mm, 0.8 mm pitch) with thermal lid and exposed thermal pad. Pin assignments follow Microsemi's standard SERDES macro-to-I/O mapping for QSGMII and 10GBase-KR interfaces, with dedicated differential clock inputs for SyncE and PTP reference clocks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN0_P/N | SyncE Reference Clock Input | Differential 125 MHz input for synchronous Ethernet recovery; required for G.8262 Class C compliance. |
| PTP_CLK_P/N | PTP Timestamp Clock Input | Differential 10/25/125 MHz clock for IEEE 1588v2 time-of-day generation and hardware timestamp alignment. |
| MDIO/MDC | Management Interface | IEEE 802.3 clause 22/45 interface for configuring PHYs, SERDES, and switch registers via external CPU or microcontroller. |
| GPIO[7:0] | General-Purpose I/O | Configurable as interrupt outputs (e.g., link status change), reset controls, or LED drivers for system monitoring. |
| THERMAL_ALERT | Thermal Monitoring | Open-drain output asserted when die temperature exceeds 115°C - triggers system-level thermal throttling or shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| VCAP™ Classifier Engine | Three-tiered classification (IS2/CLM/LPM) enabling simultaneous L2/L3/L4 rule matching at 100% line rate without CPU intervention. |
| Hardware Time Stamping | Sub-50 ns one-step PTP timestamping on all 26 ports with programmable ingress/egress delay compensation for cable skew calibration. |
| Synchronous Ethernet | G.8262 Class C compliant clock recovery with holdover stability of ±0.1 ppm over 24 hours - eliminates need for external clock modules. |
| Shared Queue System | Hierarchical scheduler with per-queue WRED and ECN marking - ensures fair bandwidth allocation and low-latency forwarding for mixed traffic types. |
| Frame Rewriter | Programmable rewrite engine supporting VLAN stacking, DSCP remapping, and VStaX header insertion - enables service provider multi-tenancy and OAM tagging. |
Applications
| Mobile Fronthaul Aggregation | Industrial Automation Network |
|---|---|
Use Scenario: Aggregating CPRI/eCPRI traffic from multiple 5G remote radio units (RRUs) into a centralized BBU pool over fiber. IC Role / Device Role / Timing Role: Boundary clock switch with hardware PTP timestamping and SyncE recovery to maintain <100 ns phase error across distributed antennas. Use Value: Eliminates external timing modules while meeting 3GPP TR 38.811 fronthaul jitter requirements through deterministic packet processing and sub-50 ns timestamp accuracy. | Use Scenario: Connecting PLCs, HMIs, and motion controllers in a PROFINET or EtherCAT ring topology with redundancy and real-time diagnostics. IC Role / Device Role / Timing Role: Deterministic L2/L3 switch with hardware-based sFlow sampling and precise time stamping for synchronized I/O event correlation. Use Value: Enables cycle-accurate timestamping of control packets and real-time network health monitoring without software polling overhead. |
| Carrier Ethernet Access Node | Smart Grid Substation |
Use Scenario: Deployed as a multi-service access node delivering business Ethernet, IPTV, and VoIP to SME customers over GPON/EPON backhaul. IC Role / Device Role / Timing Role: VLAN-aware switch with ACL-based subscriber isolation, QoS shaping, and IEEE 1588v2 time synchronization for NTP stratum-1 backup. Use Value: Supports 4K VLANs and per-subscriber rate limiting while providing traceable time sync for billing systems and SLA reporting. | Use Scenario: Interconnecting IEDs (Intelligent Electronic Devices), RTUs, and PMUs in an IEC 61850-9-3 compliant substation automation system. IC Role / Device Role / Timing Role: Precision time protocol boundary clock with IEEE 1588v2 transparent clock mode and hardware-assisted Best Master Clock Algorithm (BMCA). Use Value: Achieves <1 μs time accuracy across 100+ devices in harsh EMI environments using differential PTP clock inputs and programmable I/O delay tuning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar L2/L3 Ethernet switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Marvell 88E6393X | 12-port 1G/2.5G switch with integrated 10G uplink; lacks hardware PTP timestamping and SyncE recovery. | Targeted at cost-sensitive enterprise edge switches where telecom-grade timing is not required. | Select when IEEE 1588v2 or G.8262 compliance is unnecessary and port count is lower. |
| Intel Ethernet Switch FM6000 | 32-port 10G/25G switch with x86 host interface; requires external timing ICs for PTP and SyncE functions. | Designed for data center leaf-spine topologies with host CPU offload, not embedded carrier access nodes. | Select for high-throughput data center fabrics requiring PCIe host integration and software-defined control plane. |
Compared with Marvell 88E6393X and Intel FM6000, the VSC7442YIH-02 uniquely integrates telecom-grade timing (SyncE + PTP) and carrier-class L2/L3 features in a single chip optimized for space-constrained outdoor cabinets and substation enclosures - eliminating external timing ICs and reducing BOM count by 3–5 components.
Availability
VSC7442YIH-02 is available at Aetrix Electronics and suitable for mobile fronthaul aggregation, industrial automation networks, and carrier Ethernet access nodes requiring stable component supply, long-term lifecycle support, and guaranteed obsolescence management.
Supply support for VSC7442YIH-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 VSC7442YIH-02 belongs to Microsemi's VSC744x family of carrier-class Ethernet switches, designed specifically for telecom infrastructure, smart grid substations, and industrial control systems demanding deterministic latency, precise time synchronization, and field-upgradable firmware.
FAQ
What is the maximum number of VLANs supported by the VSC7442YIH-02?
The VSC7442YIH-02 supports up to 4,094 IEEE 802.1Q VLANs, plus additional Private VLAN (PVLAN) configurations and Multiple Spanning Tree Protocol (MSTP) instances. This capacity enables large-scale service provider deployments with strict tenant isolation and loop-free topologies across metro access networks - a capability confirmed in Section 3.15 of the VMDS-10498 datasheet.
Does the VSC7442YIH-02 support IEEE 1588v2 transparent clock mode?
Yes, the VSC7442YIH-02 supports both IEEE 1588v2 boundary clock and transparent clock modes. In transparent mode, it measures and compensates for residence time on each port with hardware timestamping accuracy better than 50 ns, enabling precise time distribution in IEC 61850-9-3 substation networks - as specified in Section 3.27 of the official datasheet.
What SERDES interfaces does the VSC7442YIH-02 support?
The VSC7442YIH-02 integrates SERDES1G, SERDES6G, and SERDES10G macros supporting QSGMII (for 4x 1G/2.5G lanes), 10GBase-KR, and SFI interfaces. These are mapped to its 24x DEV1G/DEV2G5 and 2x DEV10G ports - enabling flexible front-panel and uplink connectivity without external retimers, per Section 3.3.5 of the VMDS-10498 datasheet.
Can the VSC7442YIH-02 perform hardware-based sFlow sampling?
Yes, the VSC7442YIH-02 includes a dedicated hardware sFlow sampler compliant with sFlow v5, capable of configurable sampling rates from 1:1000 to 1:1,000,000. This offloads traffic analysis from the host CPU and enables real-time network visibility - a feature documented in Section 3.21.4 of the official datasheet.
Is the VSC7442YIH-02 compliant with ITU-T G.8262 for Synchronous Ethernet?
Yes, the VSC7442YIH-02 meets ITU-T G.8262 Class C specifications for Synchronous Ethernet, including jitter transfer, jitter tolerance, and holdover stability (±0.1 ppm over 24 hours). This is achieved via its integrated digital PLL and dedicated CLKIN0 differential input - as verified in Section 3.26 and Table 2-3 of the VMDS-10498 datasheet.
VSC7442YIH-02 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 672-BBGA, FCBGA
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- -
- Interface:
- -
- Number of Circuits:
- -
- Voltage - Supply:
- -
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 672-FCBGA (27x27)
VSC7442YIH-02 FAQ
1.How can I place an order for VSC7442YIH-02 through Aetrix?
Please submit a Request for Quotation (RFQ) for VSC7442YIH-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 VSC7442YIH-02 reliable?
The price and inventory of VSC7442YIH-02 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VSC7442YIH-02 is usually 5 days.
3.What payment methods are accepted for VSC7442YIH-02?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VSC7442YIH-02 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VSC7442YIH-02?
VSC7442YIH-02 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VSC7442YIH-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 VSC7442YIH-02?
For technical support, including VSC7442YIH-02 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VSC7442YIH-02 requirements.
6.How does Aetrix verify that VSC7442YIH-02 is sourced from the original manufacturer or authorized distributors?
All VSC7442YIH-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 VSC7442YIH-02 meets industry standards.
7.What is the process for return or replacement of VSC7442YIH-02?
All VSC7442YIH-02 units undergo pre-shipment inspection (PSI). If there is an issue with VSC7442YIH-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 VSC7442YIH-02 part is unused and in its original packaging.
Return procedure for VSC7442YIH-02:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VSC7442YIH-02 Tags
-
LMC567CMX/NOPB
Texas Instruments
-
LM567CMX/NOPB
Texas Instruments
-
LM567CM/NOPB
Texas Instruments
-
VSC8531XMW-02
Microchip Technology
-
VSC8531XMW-05
Microchip Technology
-
GPY115C0VI
MaxLinear, Inc.
-
SI32185-A-FMR
Skyworks Solutions Inc.
-
VSC8541XMV-05
Microchip Technology
-
SI32178-B-FM1R
Skyworks Solutions Inc.
-
GPY215C0VI
MaxLinear, Inc.
-
CPC7514ZTR
Littelfuse Inc.
-
VSC8502XML-03
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
