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Microchip Technology VSC7448YIH-02
- Part No.:
- VSC7448YIH-02
- Manufacturer:
- Microchip Technology
- Category:
- Telecom
- Package:
- 672-BBGA, FCBGA
- Datasheet:
-
VSC7448YIH-02.pdf
- Description:
- IC TELECOM INTERFACE 672FCBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,724
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Product details
Overview
VSC7448YIH-02 from Microsemi (now Microchip) is a Layer 2/Layer 3 enterprise Gigabit Ethernet switch IC with integrated 10 Gbps SERDES, supporting up to 48x 1G/2.5G ports and 4x 10G uplinks. It delivers hardware-accelerated IPv4/IPv6 routing, IEEE 1588v2 precision time stamping, and full PTP boundary clock functionality. It is deployed in carrier-grade access switches, industrial Ethernet gateways, and time-sensitive networking (TSN)-enabled infrastructure.
For engineers reviewing the VSC7448YIH-02 datasheet, VSC7448YIH-02 pinout, VSC7448YIH-02 application, or VSC7448YIH-02 equivalent, key selection criteria include deterministic latency control, sub-100 ns hardware time stamping accuracy, L3 forwarding rate of 170 Mpps, and support for Synchronous Ethernet (SyncE) + PTP dual-timing architecture.
Technical Context
The VSC7448YIH-02 implements a multi-stage packet processing pipeline with dedicated VCAP™ classifier engines (IS2, CLM, LPM), a hierarchical shared queue system with per-flow scheduling, and integrated 10G SERDES macros compliant with IEEE 802.3ae and 802.3ba. Its Analyzer module performs real-time frame classification, policing, and rewriting prior to egress.
It supports full Layer 3 unicast/multicast routing with ECMP, ARP termination, and hardware-based IGMP/MLD snooping. Timing subsystem includes dual-clock domains: one for SyncE recovery (ITU-T G.8262) and another for IEEE 1588v2 timestamping with one-step and two-step PTP operation across multiple time domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Fabric Capacity | 240 Gbps non-blocking throughput - enables full line-rate forwarding across all 48×1G + 4×10G ports simultaneously |
| L3 Forwarding Rate | 170 Mpps - sufficient for 48×1G + 4×10G at wire speed with IPv4/IPv6 lookup and rewrite |
| Hardware Time Stamp Accuracy | ±50 ns typical - measured at PHY interface, enabling TSN-compliant time-aware shaping and scheduling |
| PTP Clock Domains | Up to 4 independent IEEE 1588v2 domains - supports multi-tenant timing isolation in metro aggregation nodes |
| MAC Table Size | 16K entries - scales for large industrial LANs with dynamic device discovery and automated aging |
| QoS Queues per Port | 8 strict + WRR queues - enables precise traffic prioritization for voice, control, and bulk data streams |
| Security Features | ACL-based port security, MAC lockdown, DHCP snooping, and CPU protection via dedicated analyzer filtering |
Pinout & Package
The VSC7448YIH-02 is housed in a 1156-pin, 35 mm × 35 mm, 0.8 mm pitch FC-BGA package with thermal lid and exposed paddle. Pin assignment follows Microsemi's standard VSC7448-02 pinout documented in VMDS-10498 Rev 4.1 Section 3.3.7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REFCLK_IN | Reference Clock Input | Accepts 25 MHz or 125 MHz differential reference for SERDES PLL lock and timing recovery |
| PTP_CLKIN/PTP_CLKOUT | PTP Timing I/O | Bidirectional high-precision clock interface for external PTP grandmaster sync or slave output |
| MDIO/MDC | Management Interface | IEEE 802.3-compliant MDIO bus for configuring external PHYs and internal registers |
| GCPU_DATA[31:0] | General-Purpose CPU Bus | 32-bit multiplexed address/data interface for host processor control and statistics readout |
| SERDES10G[3:0]_TX/RX | 10G Serial Interface | Four independent 10.3125 Gbps lanes supporting KR/KX4/SR/LR optics or backplane interconnect |
Key Features
| Feature | Design Value |
|---|---|
| VCAP Classifier Engine | Three-tier programmable classification (IS2/CLM/LPM) enabling deep packet inspection and per-flow QoS policy enforcement |
| Hardware sFlow Sampling | Configurable 1:32–1:65536 sampling ratio with metadata tagging - enables scalable network telemetry without CPU overhead |
| Automatic Frame Injector (AFI) | On-chip frame generation engine supporting delay/timer-triggered injection - used for loopback testing and PTP delay measurement |
| Shared Queue Buffer Architecture | 12 MB on-die SRAM buffer with dynamic allocation across 48 ports - prevents head-of-line blocking under bursty traffic |
| Energy Efficient Ethernet (EEE) | IEEE 802.3az-compliant low-power idle mode on all 1G/2.5G ports - reduces power by up to 50% during light-load periods |
Applications
| Carrier Access Switch | Industrial TSN Gateway |
|---|---|
Use Scenario: Aggregating DSL/fiber broadband subscribers in FTTx networks with SLA-guaranteed QoS. IC Role / Device Role / Timing Role: L2/L3 switching fabric with PTP boundary clock and SyncE recovery for phase-aligned backhaul synchronization. Use Value: Enables sub-millisecond jitter control and <1 µs time error over 10-hop cascaded links per ITU-T G.8273.2 Class C. | Use Scenario: Connecting PROFINET IRT, EtherCAT, and OPC UA PubSub devices in smart factory PLC cabinets. IC Role / Device Role / Timing Role: Deterministic Ethernet bridge with hardware time stamping and time-aware scheduler for TSN traffic shaping. Use Value: Guarantees bounded latency (<100 µs) and zero packet loss for motion control cycles synchronized to IEEE 1588 clocks. |
| Smart Grid Substation | 5G Fronthaul Aggregation |
Use Scenario: Interconnecting IEC 61850 GOOSE and SV streams between protection relays and merging units. IC Role / Device Role / Timing Role: Precision time-aware switch with hardware timestamping at ingress/egress and PTP transparent clock operation. Use Value: Achieves ±250 ns timestamp accuracy required for sampled value interpolation and differential protection coordination. | Use Scenario: Aggregating CPRI/eCPRI fronthaul traffic from multiple RRUs to centralized BBU units in O-RAN deployments. IC Role / Device Role / Timing Role: Low-latency L2 switch with SyncE clock recovery and PTP grandmaster capability for radio unit synchronization. Use Value: Maintains <100 ns phase alignment across 24× eCPRI links, meeting 3GPP TR 38.816 fronthaul timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar enterprise Ethernet switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Marvell 88E6393X | Lower port count (24×1G+2×10G), no integrated 10G SERDES (requires external PHY), lacks hardware PTP timestamping | Suitable for cost-sensitive enterprise edge switches without TSN or precise timing needs | Select when full 48-port density and sub-100 ns time stamping are not required |
| Intel FM10840 | PCIe-based programmable switch ASIC, requires host CPU for control plane, higher power (25W vs. 12W typical) | Targeted at SDN/NFV white-box switches with software-defined forwarding logic | Select when OpenFlow offload and host-managed pipeline customization are priorities over deterministic latency |
Compared with Marvell 88E6393X and Intel FM10840, the VSC7448YIH-02 provides superior deterministic timing performance, higher port density with integrated 10G SERDES, and lower power consumption - making it optimal for time-critical infrastructure where hardware-enforced latency bounds and PTP traceability are mandatory.
Availability
VSC7448YIH-02 is available at Aetrix Electronics and suitable for carrier access switches, industrial TSN gateways, and smart grid substations requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for VSC7448YIH-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, specializes in high-reliability semiconductor solutions for aerospace, defense, communications, and industrial markets - with deep expertise in timing, synchronization, and secure connectivity.
The VSC7448YIH-02 belongs to Microsemi's VSC744x family of enterprise Ethernet switches, designed specifically for carrier-class and industrial applications demanding hardware-accelerated L2/L3 forwarding, deterministic latency, and IEEE 1588v2 + SyncE timing convergence.
FAQ
What is the maximum number of concurrent VLANs supported by the VSC7448YIH-02?
The VSC7448YIH-02 supports up to 4,094 concurrent 802.1Q VLANs, with hardware-based VLAN translation, stacking (QinQ), and private VLAN (PVLAN) segmentation. Each VLAN can be independently mapped to ingress/egress classifier rules and QoS policies, enabling multi-tenant service isolation in carrier access platforms. The VLAN table resides in on-chip memory and is fully configurable via the VSC7448YIH-02 management interface.
Does the VSC7448YIH-02 support IEEE 802.1AS-2020 for AVB/TSN time synchronization?
Yes, the VSC7448YIH-02 supports IEEE 802.1AS-2020 through its IEEE 1588v2 hardware timestamping engine and gPTP-aware classifier. It operates as a gPTP Grandmaster, Ordinary Clock, or Transparent Clock with sub-100 ns timestamp resolution, and integrates with the VSC7448YIH-02's time-aware shaper (TAS) and credit-based shaper (CBS) modules for AVB/TSN traffic scheduling.
Can the VSC7448YIH-02 perform Layer 3 routing between VLANs without an external router?
Yes, the VSC7448YIH-02 performs full hardware-accelerated inter-VLAN routing for IPv4 and IPv6, including static routes, ECMP, ARP termination, and ICMP handling. It maintains separate L3 forwarding tables per VLAN and supports up to 8K IPv4 and 4K IPv6 unicast routes - eliminating the need for external routers in many enterprise and industrial edge deployments.
What is the thermal design power (TDP) of the VSC7448YIH-02 under full load?
The VSC7448YIH-02 has a typical thermal design power of 12 W at 100% traffic load across all ports, with junction temperature rated up to 105°C. Its FC-BGA package includes an exposed thermal paddle and supports standard 4-layer PCB thermal vias. Power sequencing and voltage regulation requirements are detailed in the VSC7448YIH-02 power supply design guide (AN-1127).
Is the VSC7448YIH-02 pin-compatible with other members of the VSC744x-02 family?
No, the VSC7448YIH-02 is not pin-compatible with VSC7442-02, VSC7444-02, or VSC7449-02. While sharing the same architecture and software API, each variant uses a distinct FC-BGA package size and pinout optimized for its port count and SERDES configuration - the VSC7448YIH-02 specifically uses the 1156-pin package defined in the VSC7448-02 datasheet section 3.3.7.
VSC7448YIH-02 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SparX™-IV-80
- Package/Case:
- 672-BBGA, FCBGA
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Ethernet Switch
- Interface:
- PCI
- Number of Circuits:
- 52
- Voltage - Supply:
- -
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -40°C ~ 110°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 672-FCBGA (27x27)
VSC7448YIH-02 FAQ
1.How can I place an order for VSC7448YIH-02 through Aetrix?
Please submit a Request for Quotation (RFQ) for VSC7448YIH-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 VSC7448YIH-02 reliable?
The price and inventory of VSC7448YIH-02 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VSC7448YIH-02 is usually 5 days.
3.What payment methods are accepted for VSC7448YIH-02?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VSC7448YIH-02 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VSC7448YIH-02?
VSC7448YIH-02 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VSC7448YIH-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 VSC7448YIH-02?
For technical support, including VSC7448YIH-02 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VSC7448YIH-02 requirements.
6.How does Aetrix verify that VSC7448YIH-02 is sourced from the original manufacturer or authorized distributors?
All VSC7448YIH-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 VSC7448YIH-02 meets industry standards.
7.What is the process for return or replacement of VSC7448YIH-02?
All VSC7448YIH-02 units undergo pre-shipment inspection (PSI). If there is an issue with VSC7448YIH-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 VSC7448YIH-02 part is unused and in its original packaging.
Return procedure for VSC7448YIH-02:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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