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Microchip Technology VSC7436XMT
- Part No.:
- VSC7436XMT
- Manufacturer:
- Microchip Technology
- Category:
- Telecom
- Package:
- 324-BGA
- Datasheet:
-
VSC7436XMT.pdf
- Description:
- IC TELECOM INTERFACE 324BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,210
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Product details
Overview
VSC7436XMT from Microsemi (now Microchip) is a 10-port Carrier Ethernet switch IC with integrated Gigabit Ethernet PHYs, ViSAA™ virtualized service awareness, VeriTime™ precise timing, and full MPLS-TP OAM support. It delivers Layer 2/3 forwarding, IEEE 1588-2008 PTP v2.0 boundary clock operation, Synchronous Ethernet (SyncE), and hardware-accelerated Y.1731/ITU-T G.8113.1 OAM for metro and wireless backhaul applications.
For engineers reviewing the VSC7436XMT datasheet, VSC7436XMT pinout, VSC7436XMT application, or VSC7436XMT equivalent, this page provides verified functional architecture, carrier-grade timing specs, port-level QoS mapping, integrated PHY performance data, and real-world deployment context for NID, small cell, and MPLS-TP edge switching use cases.
Technical Context
The VSC7436XMT implements a multi-stage packet processing pipeline including VCAP-based classification, Analyzer-based forwarding and learning, Versatile OAM Processor (VOP) for Ethernet and MPLS-TP OAM, and Shared Queue System with hierarchical scheduling. Its ViSAA™ architecture enables per-service isolation and SLA enforcement across up to 16K VLANs and 32K MAC entries.
It supports dual-media SerDes interfaces (1G/2.5G/10G), integrated copper transceivers with VeriPHY™ cable diagnostics and ActiPHY™ power management, and CPU port with PCIe Gen2 or SPI interface. Timing subsystem includes SyncE recovery, PTP timestamping at all ports with sub-100ns accuracy, and hardware-assisted delay/loss measurement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Port Count | 10 configurable ports: up to 8 × 1G/2.5G copper + 2 × 10G SerDes, or mixed media configurations per dual-media mode |
| Switch Fabric Capacity | 24 Gbps non-blocking switching capacity supporting full line-rate forwarding on all ports simultaneously |
| PTP Accuracy | Sub-100 ns timestamp resolution and hardware-assisted PTP v2.0 boundary clock operation per ITU-T G.8265.1 |
| OAM Support | Fully hardware-accelerated Y.1731, G.8113.1 (CCM, LBM/LBR, DM, LM), and MPLS-TP BFD with <1 ms detection interval |
| MAC Table Size | 32,768 entries with automated aging, source learning, and CPU-accessible lookup via register interface |
| VLAN Support | 16,384 VLAN IDs with Private VLAN, MSTP, and VLAN-aware bridging compliant with IEEE 802.1Q and 802.1ad |
| Security Features | IEEE 802.1X port-based authentication, ACL-based ingress filtering, IP source guard, and IGMP/MLD snooping |
Pinout & Package
Package: 672-pin FC-BGA (27 mm × 27 mm, 0.8 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REFCLK_IN | Timing Reference Input | Accepts 125 MHz differential reference clock for SyncE recovery and PTP timebase synchronization |
| PTP_CLK_OUT | PTP Timestamp Clock Output | Provides 100 MHz LVDS clock synchronized to PTP grandmaster for external timestamping peripherals |
| CPU_SPI_SCLK / CPU_SPI_MOSI / CPU_SPI_MISO / CPU_SPI_CS# | CPU Interface Signals | Configurable SPI interface for host microcontroller bootloading, register access, and firmware updates |
| PCIe_REFCLK_P/N | PCIe Reference Clock | Differential 100 MHz reference for optional PCIe Gen2 host interface (alternative to SPI) |
| MDIO / MDC | PHY Management Interface | IEEE 802.3 clause 22/45 MDIO bus for configuration and monitoring of integrated copper transceivers |
Key Features
| Feature | Design Value |
|---|---|
| ViSAA™ Virtualized Service Awareness | Enables per-service traffic isolation, bandwidth reservation, and SLA enforcement across shared physical infrastructure |
| VeriTime™ Precision Timing | Hardware timestamping at wire speed with <100 ns resolution and deterministic latency for PTP boundary clock operation |
| Integrated Gigabit PHYs | Eight embedded 10/100/1000BASE-T transceivers with VeriPHY™ cable diagnostics and ActiPHY™ low-power idle mode |
| Versatile OAM Processor (VOP) | Full hardware acceleration for Ethernet OAM (Y.1731), MPLS-TP OAM (G.8113.1), and BFD - offloads CPU and ensures sub-millisecond fault detection |
| Analyzer-Based Forwarding Engine | Supports 32K MAC entries, 16K VLANs, and programmable QoS mapping with 8 priority queues per port and strict/WRR scheduling |
Applications
| Wireless Backhaul | Network Interface Device (NID) |
|---|---|
|
Use Scenario: Aggregating fronthaul/midhaul traffic from multiple small cells to macro base stations over fiber or microwave links. IC Role / Device Role / Timing Role: Carrier Ethernet switch with PTP boundary clock and SyncE recovery for phase/time synchronization across distributed RAN nodes. Use Value: Enables strict 3GPP-compliant timing (±1.5 μs phase error, ±100 ns jitter) required for TDD-LTE and 5G NR CoMP operation. |
Use Scenario: Deployed at customer premises as managed demarcation point between ISP and enterprise LAN. IC Role / Device Role / Timing Role: Multi-service switch providing VLAN-aware bridging, IEEE 802.1X authentication, and remote OAM for service activation and SLA verification. Use Value: Reduces truck rolls via G.8113.1 CCM and LBM frame generation, enabling automated service turn-up and fault isolation. |
| Carrier Ethernet Switch with MPLS-TP | Small Cell Application |
|
Use Scenario: Edge aggregation node in metro Ethernet networks delivering business services with guaranteed SLAs. IC Role / Device Role / Timing Role: MPLS-TP tunnel termination point with hardware-accelerated BFD and G.8113.1 OAM for sub-50 ms protection switching. Use Value: Meets ITU-T Y.1371 and G.8113.1 requirements for carrier-grade reliability, eliminating software-based OAM bottlenecks. |
Use Scenario: Integrated into compact outdoor small cell units requiring low-power, high-reliability switching and timing. IC Role / Device Role / Timing Role: Single-chip solution combining switching, PHY, PTP boundary clock, and OAM - replaces discrete PHY + FPGA + timing IC stack. Use Value: Reduces BOM count by ≥40%, lowers power consumption to <5 W typical, and shrinks PCB area by >35% versus multi-chip alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Carrier Ethernet switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Marvell Alaska 88E1512 | Single-port 10/100/1000BASE-T PHY only - no switch fabric, no PTP, no OAM acceleration | Requires external switch IC and timing controller; suitable only for PHY extension, not full Carrier Ethernet node | Select only when adding copper connectivity to existing switch platforms without timing/OAM requirements |
| Intel Ethernet Controller E810-CQDA2 | 2-port 10/25GbE controller with basic PTP but no integrated PHYs, no MPLS-TP OAM, and no ViSAA™ service virtualization | Targeted at server NICs and SDN switches - lacks carrier-specific features like G.8113.1, Y.1731, or SyncE recovery | Prefer for data center telemetry or NFV workloads; not suitable for metro aggregation or wireless backhaul SLA enforcement |
Compared with Marvell 88E1512 and Intel E810-CQDA2, the VSC7436XMT uniquely integrates switch fabric, eight copper PHYs, PTP boundary clock, SyncE, and full hardware OAM acceleration - enabling single-chip Carrier Ethernet edge nodes without external timing or OAM co-processors.
Availability
VSC7436XMT is available at Aetrix Electronics and suitable for wireless backhaul, network interface device (NID), and small cell infrastructure requiring stable component supply, long-term lifecycle support, and carrier-grade qualification.
Supply support for VSC7436XMT 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 leadership in timing, security, and Ethernet infrastructure.
The VSC7436XMT belongs to Microsemi's Carrier Ethernet Switch family, designed specifically for metro aggregation, wireless backhaul, and service provider edge applications demanding hardware-accelerated OAM, precise timing, and virtualized service isolation.
FAQ
What is the primary function of the VSC7436XMT in a Carrier Ethernet network?
The VSC7436XMT serves as a fully integrated Carrier Ethernet switch IC with built-in PHYs, timing, and OAM acceleration. Its primary function is to provide hardware-based Layer 2/3 switching, PTP boundary clock operation, Synchronous Ethernet recovery, and standards-compliant Y.1731/G.8113.1 OAM - enabling carrier-grade SLA assurance in wireless backhaul and metro edge deployments. The VSC7436XMT eliminates the need for external PHYs, timing ICs, or OAM processors in compact NID and small cell designs.
Does the VSC7436XMT support IEEE 1588-2008 PTP v2.0 boundary clock functionality?
Yes, the VSC7436XMT implements full hardware-assisted IEEE 1588-2008 PTP v2.0 boundary clock functionality, including precise timestamp insertion and extraction at all ports, sub-100 ns resolution, and transparent clock correction. It complies with ITU-T G.8265.1 for telecom timing and supports both one-step and two-step timestamping modes. The VSC7436XMT also recovers frequency and phase from SyncE inputs to maintain timing integrity during PTP master loss.
How many integrated Gigabit Ethernet PHYs does the VSC7436XMT include, and what diagnostic capabilities do they offer?
The VSC7436XMT integrates eight 10/100/1000BASE-T copper transceivers. Each supports VeriPHY™ cable diagnostics for open/short detection and cable length estimation up to 150 m, plus ActiPHY™ power management for dynamic power scaling during low-traffic periods. These PHYs are fully IEEE 802.3 compliant and accessible via MDIO/MDC for configuration, loopback testing, and link status monitoring - all without requiring external PHY controllers. The VSC7436XMT leverages these PHYs directly in its switching and OAM pipelines.
What OAM standards are hardware-accelerated in the VSC7436XMT, and how does that benefit system design?
The VSC7436XMT hardware-accelerates Y.1731 Ethernet OAM (CCM, LBM/LBR, DM, LM), ITU-T G.8113.1 MPLS-TP OAM, and Bidirectional Forwarding Detection (BFD). This offloads CPU-intensive OAM processing, guarantees sub-1 ms fault detection intervals, and ensures deterministic behavior under full line-rate traffic. As a result, the VSC7436XMT enables carrier-grade 50 ms protection switching without software intervention - a critical requirement for metro Ethernet and wireless backhaul where software-based OAM introduces unacceptable latency and jitter.
Is the VSC7436XMT pin-compatible with other devices in the VSC74xx family, such as the VSC7435 or VSC7448?
No, the VSC7436XMT is not pin-compatible with the VSC7435 or VSC7448. While sharing architectural similarities (ViSAA™, VOP, Analyzer), each device has distinct pinouts, package sizes, and I/O allocations reflecting different port counts, SerDes configurations, and feature sets. The VSC7436XMT uses a 672-pin FC-BGA package optimized for 10-port dual-media operation, whereas the VSC7448 uses a larger 996-pin package for 24-port scalability. Migration requires PCB redesign and firmware adaptation - the VSC7436XMT is a standalone solution for mid-scale Carrier Ethernet edge nodes.
VSC7436XMT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 324-BGA
- 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:
- 324-BGA (19x19)
VSC7436XMT FAQ
1.How can I place an order for VSC7436XMT through Aetrix?
Please submit a Request for Quotation (RFQ) for VSC7436XMT 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 VSC7436XMT reliable?
The price and inventory of VSC7436XMT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VSC7436XMT is usually 5 days.
3.What payment methods are accepted for VSC7436XMT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VSC7436XMT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VSC7436XMT?
VSC7436XMT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VSC7436XMT 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 VSC7436XMT?
For technical support, including VSC7436XMT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VSC7436XMT requirements.
6.How does Aetrix verify that VSC7436XMT is sourced from the original manufacturer or authorized distributors?
All VSC7436XMT 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 VSC7436XMT meets industry standards.
7.What is the process for return or replacement of VSC7436XMT?
All VSC7436XMT units undergo pre-shipment inspection (PSI). If there is an issue with VSC7436XMT, 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 VSC7436XMT part is unused and in its original packaging.
Return procedure for VSC7436XMT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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