Microchip Technology VSC7552-V/5CC

Overview

VSC7552-V/5CC from Microchip Technology is a Layer 2/Layer 3 enterprise Ethernet switch IC supporting up to 128 Gbps bandwidth, 64 ports (including 12 × 10G or 6 × 10G + 2 × 25G configurations), 32K MAC table entries, and dual-core 1 GHz ARM Cortex-A53 CPU for full switch management - deployed in SMB/enterprise edge switches requiring high-density 1G–25G aggregation.

For engineers reviewing the VSC7552-V/5CC datasheet, VSC7552-V/5CC pinout, VSC7552-V/5CC application, or VSC7552-V/5CC equivalent, this page delivers verified port configurations, VCAP-based security classification, L3 routing capacity (511 router legs, 512 IPv6 prefix entries), and PCIe 3.0/CPU subsystem integration critical for managed switch design and BOM validation.

Technical Context

The VSC7552-V/5CC implements a flow-aware architecture with four ingress VCAP CLM lookups per frame and two egress lookups per copy, enabling TCAM-based VLAN/QoS/security processing across L2–L4 headers. Its integrated VCore-IV™ subsystem combines dual-core ARM Cortex-A53 (1 GHz, MMU, DDR3/DDR4 controller) and dedicated ARM Cortex-M3 for PoE/PCIe boot management.

Forwarding logic supports nonblocking wire-speed switching at all frame sizes, with hierarchical scheduler managing 32K queues, 4K ingress/8K egress QoS mappings, and low-latency cut-through mode. Security enforcement includes hierarchical ACLs, storm control, and per-port registration for frame redirection or discarding - all backed by 10 Super VCAP blocks (3K × 52-bit entries each).

Key Specifications

Pinout & Package

The VSC7552-V/5CC is housed in a 780-pin FC-BGA package (27 mm × 27 mm, 0.8 mm pitch) with thermal lid and exposed die paddle for industrial-grade thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar enterprise Ethernet switch applications.

Compared with VSC7552-V/5CC, VSC7556-V/5CC adds 32 Gbps bandwidth and two extra 25G lanes for denser uplinks, while VSC7558-V/5CC doubles 25G capacity to eight lanes and expands IPv6 multicast group support - all sharing identical VCAP, CPU, and software architecture for seamless firmware migration.

Availability

VSC7552-V/5CC is available at Aetrix Electronics and suitable for enterprise edge switching, WiFi aggregation gateways, and security appliance interconnects requiring stable component supply, long-term lifecycle assurance, and full technical documentation support.

Supply support for VSC7552-V/5CC 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

Microchip Technology is a global semiconductor company specializing in microcontrollers, analog devices, FPGAs, and networking solutions - with emphasis on reliability, security, and long-term product availability.

The SparX-5 family, including VSC7552-V/5CC, was engineered for managed Layer 2/Layer 3 enterprise switching in SMB, SME, and campus environments - delivering scalable 1G–25G port density with integrated CPU and hardware-accelerated security.

FAQ

What is the maximum number of 25G ports supported by the VSC7552-V/5CC?

The VSC7552-V/5CC supports up to four 25G ports, as confirmed in Table 2-1 of the official datasheet (DS00003823B). This configuration appears in the "6 × 10G + 2 × 25G" and "48 × 1G + 8 × 10G" port modes - with SerDes25G lanes allocated to S25 and S32 pairs. The VSC7552-V/5CC does not support eight 25G lanes like the VSC7558-V/5CC.

Does the VSC7552-V/5CC include an integrated CPU, and what is its architecture?

Yes, the VSC7552-V/5CC integrates a VCore-IV™ subsystem featuring a dual-core 1 GHz ARM Cortex-A53 CPU with MMU and a separate ARM Cortex-M3 core for PCIe boot and PoE management. This enables full Linux-based switch OS execution, frame DMA, and inline register access via VRAP - all documented in Section 5 of DS00003823B.

What L3 routing capabilities does the VSC7552-V/5CC provide?

The VSC7552-V/5CC supports IPv4/IPv6 unicast and multicast routing with 511 router legs, 512 IPv6 prefix entries, 3K IPv4/1.5K IPv6 unicast routes per super VCAP block, and 1.5K IPv4/512 IPv6 multicast (S,G) groups. It also implements VRF-Lite (64 instances), IP tunnels (GRE, 6to4, etc.), and uRPF - per Table 2-1 and Section 3.7 of DS00003823B.

How many VCAP blocks does the VSC7552-V/5CC have, and what functions do they serve?

The VSC7552-V/5CC contains 10 Super VCAP blocks, each providing 3K × 52-bit entries for LPM, CLM, and IS2 lookups. These blocks handle TCAM-based classification, ACL enforcement, QoS mapping, and forwarding decisions - with 512 ingress IS2 rules and 2K egress ACL rules allocated per block, as specified in Table 2-1 and Section 4.10 of DS00003823B.

Is Energy Efficient Ethernet (EEE) supported on all port speeds of the VSC7552-V/5CC?

Yes, EEE per IEEE 802.3az is supported on all 1G–25G Ethernet ports of the VSC7552-V/5CC, including SGMII, USGMII, USXGMII, and SerDes-based interfaces. The shared queue system controls PCS low-power states (sleep, quiet, refresh, wake), and line signaling complies fully - as detailed in Section 3.1 and Feature list on page 1 of DS00003823B.