VSC8244XHG - Quad Gigabit Ethernet PHY | Microchip Technology
MPN: VSC8244XHG ✓ AktifVSC8244XHG Ringkasan
A multi-port Ethernet PHY is an interface IC that converts data between a digital MAC or switching fabric and physical copper network links. The VSC8244 family combines four Gigabit Ethernet channels in one device, reducing the number of external PHY components required in a network system. Its RGMII interface supports high-speed digital connections to a network processor or switch ASIC, while RTBI provides an alternative MAC-facing interface for compatible designs.
The principal feature of the VSC8244XHG is its quad-port architecture, which allows one device to terminate four Ethernet ports. The manufacturer describes the VSC8244 as the industry’s smallest, lowest-power quad-port Gigabit Ethernet transceiver for low-cost RGMII and RTBI switch and router applications. In 1000BASE-T mode, the manufacturer states that power consumption is 30% lower than the next-best competitor.
The 3 V to 3.6 V operating range suits systems using a regulated 3.3 V power rail. The 260-PBGA package provides a high pin count for four integrated channels and their associated interfaces, while its lead-free construction and RoHS compliance support modern manufacturing requirements. The exact pin assignments, register map, clocking requirements, and electrical limits should be taken from the Microchip VSC8244 datasheet and reference design documentation.
Typical applications include four-port Gigabit Ethernet switches, router interfaces, industrial Ethernet equipment, network appliances, and embedded systems that need multiple copper Ethernet ports. The PHY is positioned between the Ethernet magnetics and the system’s MAC or switching logic, so board design must account for high-speed digital signals, differential pairs, controlled impedance, grounding, and isolated network interfaces.
For a new design, compare the complete Microchip VSC8244 datasheet, reference schematics, and support for the intended MAC interface before layout begins. The quad-channel package is not interchangeable with a single-channel PHY, and the 260-BGA land pattern requires careful fanout and via planning.
Alternatif penggantian untuk VSC8244XHG — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Tidak ada alternatif pengganti yang tersedia untuk produk ini.
Permintaan AlternatifVSC8244XHG Spesifikasi
| Number of Drivers/Receivers | 4/4 |
| Product Type | Quad Gigabit Ethernet PHY transceiver |
| Supported Ethernet Rates | 10/100/1000 Mbps |
| Supported PHY Standards | 10/100/1000BASE-T |
| Supply Voltage Range | 3 V to 3.6 V |
| MAC Interface | RGMII / RTBI |
| Paket | 260-BGA / 260-PBGA |
| Tipe Mounting | Surface Mount |
| Packaging | Tray |
| Lead-Free Status | Lead Free |
| Status RoHS | RoHS3 compliant |
| Typical Application | Gigabit Ethernet switch and router |
| Interface Count | 4 Ethernet ports |
| Package Pin Count | 260 pins |
VSC8244XHG 260 pins Diamant Konfigurasi Panduan
Konfigurasi pin untuk VSC8244XHG (260 pins pakai pakai). Penomoran pin, fungsi, dan diagram koneksi ditetapkan dalam datasheet produsen. Lihatnya untuk footprint dan pedoman perpindahan paruh.
Tidak ada data diatribut pin yang tersedia untuk VSC8244XHG.
Lihat ke: datasheet produk untuk konfigurasi pin penuh.
Aplikasi Umum
VSC8244XHG cocok untuk 6 aplikasis: Four-Port Gigabit Ethernet Switch, Router and Network-Appliance Interfaces, Industrial Ethernet Equipment, Embedded Network Processor Interfaces, Multi-Port Network Appliances, Ethernet Media and Test Equipment.
Four-Port Gigabit Ethernet Switch
The VSC8244XHG fits a compact four-port Gigabit Ethernet switch because one device terminates four 10/100/1000BASE-T channels while exposing RGMII or RTBI to the switching ASIC. Its 3 V to 3.6 V supply range matches common 3.3 V network-equipment rails. Using one quad PHY instead of four single-channel devices can reduce component count and simplify the physical-layer layout. The 260-PBGA package still demands careful ball fanout, controlled-impedance routing, and a low-noise power plane. Confirm the switch ASIC’s supported PHY interface, reference-clock architecture, and register configuration in the Microchip reference design.
Direkomendasikan
Router and Network-Appliance Interfaces
The VSC8244XHG can provide four physical Ethernet ports in a router, gateway, or network appliance where copper connectivity and limited board area are priorities. Its RGMII and RTBI choices allow the board architect to align the PHY with the selected MAC or switch controller rather than relying on a single host-interface arrangement. The 3 V to 3.6 V operating range integrates naturally with a regulated 3.3 V rail. System-level design must account for the 260-BGA footprint, Ethernet magnetics, differential-pair routing, and thermal performance under sustained 1000BASE-T traffic.
Direkomendasikan
Industrial Ethernet Equipment
The VSC8244XHG is a candidate for industrial Ethernet controllers, communication gateways, and managed network equipment requiring multiple Gigabit copper ports. Its four integrated channels can simplify a multi-port front panel while keeping the MAC-facing connection at RGMII or RTBI. The device’s 3 V to 3.6 V supply supports common industrial power architectures after regulation. Before release, verify the exact temperature grade, isolation strategy, surge protection arrangement, grounding plan, and long-term lifecycle commitments directly against the Microchip ordering information and system safety requirements.
Direkomendasikan
Embedded Network Processor Interfaces
The VSC8244XHG can terminate four Gigabit Ethernet links adjacent to an embedded network processor or communications controller. Consolidating four PHYs into one package reduces the number of separate PHY devices, while the selectable RGMII and RTBI interfaces support two different MAC integration styles. The design should allocate the 260-PBGA package away from noisy power-conversion stages and route each copper channel through its intended magnetic-module network. Clock jitter, timing margin, trace length, and PHY management firmware must be verified against the specific MAC controller before schematic sign-off.
Direkomendasikan
Multi-Port Network Appliances
The VSC8244XHG is suitable for gateways, bridges, and compact network appliances that expose several Ethernet ports from a single board. Its quad-channel integration supports a four-port copper front end without requiring four separate PHY packages, while the low-power positioning of the VSC8244 family helps manage total board power. The implementation must include isolated magnetics, proper Ethernet line-side protection, and a power design that keeps PHY supplies stable during cable insertion and simultaneous high-speed traffic. Use the manufacturer’s reference layout to preserve the performance of all four channels.
Direkomendasikan
Ethernet Media and Test Equipment
The VSC8244XHG can provide four Gigabit Ethernet test ports in line cards, traffic analyzers, and protocol-analysis systems. Four synchronized PHY channels make it practical to test several copper links in one instrument while using RGMII or RTBI to connect to test and control logic. The compact quad-port arrangement can reduce chassis electronics, although the 260-BGA package requires advanced board-level assembly and inspection. Engineering teams should validate return loss, insertion loss, common-mode behavior, and recoverability against the applicable Ethernet test requirements rather than relying on a generic PHY specification.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk VSC8244XHG — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini |
|---|---|
| Package | 260-BGA / 260-PBGA |
| Brand | Microchip Technology |
| Number of Drivers/Receivers | 4/4 |
| Ethernet Rate Support | 10/100/1000 Mbps |
| PHY Standard | 10/100/1000BASE-T |
| Supply Voltage Range | 3 V to 3.6 V |
| MAC Interface | RGMII / RTBI |
| Packaging | Tray |
| Lead-Free Status | Lead Free |
| RoHS Status | RoHS3 compliant |
Diferensiator Kunci
- Four Gigabit Ethernet channels in one device (vsVSC8244)
- Compact multi-port integration (vsVSC8244)
- Low-power 1000BASE-T positioning (vsVSC8244)
Catatan Desain
Use the Microchip VSC8244 reference layout as the starting point for the 260-PBGA footprint. Preserve the recommended ball fanout, via structures, plane partitioning, and short return paths for the RGMII or RTBI interface. Because this device combines four high-speed copper channels, avoid routing noisy switching nodes or power-converter outputs through the PHY area. Confirm pad, solder-mask, and paste-mask geometry against the current Microchip package drawing rather than scaling a generic BGA footprint.
Route each Ethernet differential pair as a controlled-impedance 100-ohm differential transmission line with continuous reference planes and tightly matched pair geometry. Keep the PHY-to-magnetics path short and minimize stubs, vias, and unprotected branches. RGMII timing is particularly sensitive to skew, so follow the manufacturer’s trace-length and clock-routing guidance for the selected MAC interface. Validate signal integrity with the actual magnetics, enclosure, connector, and PCB stack-up before production release.
Implement a low-impedance 3.3 V rail for the PHY and follow the manufacturer’s recommended capacitor placement and values. Separate or carefully filter supplies associated with Ethernet magnetics and external interfaces to prevent conducted noise from coupling into the four PHY channels. Estimate the rail-to-rail dissipation from the actual input voltage, per-channel operating mode, and data activity, then verify that the power source, copper area, and thermal path sustain the expected temperature rise.
Informasi Konformitas
The product listing identifies the VSC8244XHG as RoHS3 compliant and lead free. No separate REACH, halogen-free, conflict-minerals, or automotive qualification statement is present in the available product information.
