VSC7389XHO
VSC7389XHO - 16-Port GbE Switch with 8 PHYs | Microchip
The Microchip Technology VSC7389XHO is a 16-port Gigabit Ethernet switch with eight integrated PHYs, supplied in a 596-ball BGA package measuring 35 mm by 35 mm. It is categorized by distributors as a special-purpose telecommunications switch IC and combines Ethernet switching functionality with eight physical-layer interfaces in one high-pin-count package. The available distributor information identifies Microchip Technology as the manufacturer and confirms the 16-port Gigabit Ethernet architecture, eight PHY integration, 596-BGA construction, and 35 mm by 35 mm package dimensions.
An Ethernet switch is a network-semiconductor device that receives Ethernet frames at multiple physical ports, examines frame destination information, and forwards traffic toward the appropriate output port. In the networking hierarchy, this VSC7389XHO belongs to Ethernet switch ICs, interface ICs, and ultimately integrated semiconductors. Its eight integrated PHYs connect copper Ethernet links to the switching fabric, while the remaining switch ports support network-facing connections configured through the broader telecommunications switching system.
The three headline characteristics of the VSC7389XHO are its 16 Gigabit Ethernet ports, eight integrated PHYs, and 596-ball BGA package. Integrating eight PHYs can reduce the number of external physical-layer devices required in a multiport design. The large BGA also provides the pin density needed for a complex switching solution, although its 596 balls and 35 mm by 35 mm outline make PCB layout, assembly, inspection, and thermal management substantially more demanding than those for a small leaded or low-pin-count package.
Because the supplied search results do not expose the complete Microchip datasheet, switching throughput, latency, supported media types, clocking, management interfaces, power specifications, or operating-temperature limits, those values should not be inferred from the distributor category. The 596-ball package should be treated as a land-grid-array device with a dense peripheral fanout. Component classification as a “special purpose” analog switch reflects distributor taxonomy and does not establish that the device is a simple analog multiplexer; the manufacturer description identifies it as a 16-port Gigabit Ethernet switch with eight PHYs.
Typical design uses include industrial Ethernet aggregation, telecommunications access equipment, embedded network infrastructure, and multiport copper-network systems. In such systems, the eight integrated PHYs can serve direct copper links, while a larger switch configuration may use additional external interfaces. Final suitability depends on protocol support, media capability, management features, timing, power, and thermal requirements that are not exposed in the verified distributor snippets.
The primary engineering consideration is the 596-ball BGA assembly. A valid replacement must match the land pattern, ball assignment, electrical performance, firmware expectations, and thermal requirements; merely using the same 35 mm by 35 mm outline is insufficient. Before layout release, engineers should obtain the manufacturer datasheet, pinout, reference design, recommended decoupling network, PCB stack-up, and assembly process information, then validate the complete Ethernet design for signal integrity and thermal performance.
This page consolidates the verified distributor identity, package information, port and PHY counts, sourcing links, comparison parameters, and practical replacement criteria for VSC7389XHO. Because no verified pin-compatible substitutes or numeric price tiers were provided, the record explicitly preserves those uncertainties instead of presenting generic same-category parts as drop-in replacements.
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