VSC8256YMR-01 - Quad 10G SFI/XFI Repeater | Microchip
MPN: VSC8256YMR-01 ✗ Akhir HidupVSC8256YMR-01 Ringkasan
A repeater/retimer is a signal-conditioning semiconductor that receives a high-speed serial waveform, regenerates it, and transmits a cleaner copy to the next circuit. Unlike a simple passive redriver, a retimer can recover timing through receive and transmit equalization. The VSC8256 sits within the broader hierarchy of Ethernet interface ICs, serial transceiver support ICs, and semiconductor signal-integrity devices.
The VSC8256 provides four independent serial channels and integrates hardware-based, host-side-only 10GBASE-KR auto-negotiation and training. This combination allows a board designer to address difficult printed-circuit-board loss on Ethernet links while retaining compatibility with protocol-independent serial interfaces. The manufacturer describes the device as a low-power solution for board-level signal-integrity applications.
Its SFI-to-XFI architecture places separate serial-side and host-side interfaces around each repeater channel. In a 10G design, the device can receive SFI traffic and provide conditioned XFI output, helping recover signal integrity across connector, package, and PCB channels. Protocol independence allows the same device to support multiple Ethernet or compatible serial-transfer arrangements rather than requiring a fixed end protocol.
Typical applications include 10GBASE-KR backplanes, 10G Ethernet switches and routers, WAN and LAN interface equipment, server networking, and high-speed line cards. The four-channel architecture can reduce the number of separate retimer components required in a multiport design, while the 17 x 17 mm FCBGA supports dense board layouts requiring high pin density.
The primary design consideration is that a 256-ball FCBGA requires careful PCB escape routing, power and ground distribution, and thermal analysis. Differential traces should follow the manufacturer's reference layout, and decoupling should be placed close to the supply pins. Signal-integrity performance depends on the complete channel, including connector and trace geometry, rather than on the IC alone.
This page combines the manufacturer's device description with package-level sourcing information and practical selection guidance. It distinguishes the orderable MPN from the VSC8256 family designation, summarizes the confirmed four-channel architecture, and identifies the board-level considerations that matter when integrating this Ethernet retimer into a 10Gbps system.
Alternatif penggantian untuk VSC8256YMR-01 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian VSC8256YMR-01 (sama faktor bentuk dan footprint) — berbeda di dalam Product Type, Number of Channels, Package.
VSC8256EV
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →VSC8256YMR-01 Spesifikasi
| Product Type | Quad-channel serial-to-serial repeater/retimer |
| Channel Count | 4 channels |
| Supported Data Rate | 1G and 10G |
| Maximum Serial Data Rate | 10 Gbps |
| Serial Interface | SFI to XFI |
| Protocol Support | Protocol-agnostic |
| Auto-Negotiation | Hardware-based host-side-only 10GBASE-KR |
| Training Support | Hardware-based 10GBASE-KR training |
| Package Type | 256-ball FCBGA |
| Package Dimensions | 17 x 17 mm |
| Jumlah Pin | 256 balls |
| Tipe Mounting | Surface mount |
| Power Classification | Low-power device |
VSC8256YMR-01 17 x 17 mm Diamant Konfigurasi Panduan
Konfigurasi pin untuk VSC8256YMR-01 (17 x 17 mm 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 VSC8256YMR-01.
Lihat ke: datasheet produk untuk konfigurasi pin penuh.
Aplikasi Umum
VSC8256YMR-01 cocok untuk 6 aplikasis: 10GBASE-KR Backplane Signal Recovery, 10G Ethernet Switch Line Cards, WAN and LAN Communication Equipment, Server Networking and Data-Center Systems, High-Speed Network Adapter Cards, Dense 10G Interface and Test Systems.
10GBASE-KR Backplane Signal Recovery
The VSC8256YMR-01 fits 10GBASE-KR backplanes where PCB loss can impair signal integrity at 10Gbps. Its four channels can regenerate serial traffic while the integrated hardware-based host-side-only 10GBASE-KR auto-negotiation and training supports link setup. According to the Microchip product page, the protocol-agnostic architecture is intended for board-level signal-integrity applications, making it useful across dense switch, router, and line-card backplanes. The trade-off is implementation complexity: a 256-ball FCBGA requires controlled escape routing, close decoupling, and full channel simulation rather than simple point-to-point trace matching.
Direkomendasikan
10G Ethernet Switch Line Cards
The VSC8256YMR-01 is suitable for switch and router line cards that must preserve signal integrity across dense, loss-prone printed-circuit boards. Four SFI-to-XFI channels provide a practical way to condition multiple 10G links, while 1G/10G support and protocol independence broaden design reuse. According to the Microchip VSC8256 product page, hardware-based host-side-only 10GBASE-KR auto-negotiation and training are integrated into a low-power package. Designers should evaluate channel insertion loss, jitter tolerance, power distribution, and thermal performance as a complete retimer-plus-channel system.
Direkomendasikan
WAN and LAN Communication Equipment
The VSC8256YMR-01 can be used in WAN and LAN equipment where 10Gbps copper links traverse long board channels, connectors, or package transitions. Its serial repeater/retimer role restores the received waveform before the next link element, reducing the signal-integrity burden on the host SerDes. The manufacturer describes a quad-channel, protocol-agnostic 1G/10G device for broad board-level use. Four channels can consolidate retiming functions, but each interface must be validated with its actual connector and trace geometry because retimer performance cannot be separated from the complete channel budget.
Direkomendasikan
Server Networking and Data-Center Systems
The VSC8256YMR-01 fits server networking and data-center switching systems that need predictable 10G signal propagation across dense multilayer boards. Its four 10G SFI-to-XFI channels provide local signal recovery, while the protocol-agnostic design avoids tying the retimer to one particular end protocol. According to the Microchip product page, the device also integrates hardware-based host-side-only 10GBASE-KR negotiation and training. Deployment should include signal-integrity simulation, power-integrity review, and thermal testing because the dense FCBGA can concentrate both switching activity and heat around the same region.
Direkomendasikan
High-Speed Network Adapter Cards
The VSC8256YMR-01 can support high-speed network adapter cards where an SFI interface from a controller must reach an XFI host interface across a lossy PCB channel. Four channels allow a single adapter design to service multiple 10G ports, reducing board area compared with four separate discrete link-conditioning devices. The Microchip product page identifies the VSC8256 as a low-power, protocol-agnostic repeater/retimer for board-level signal-integrity applications. Engineering validation should still cover differential impedance, connector transitions, jitter budget, reference clock distribution, and channel training behavior.
Direkomendasikan
Dense 10G Interface and Test Systems
The VSC8256YMR-01 can be incorporated into dense 10G interface and test systems that need repeatable recovery of SFI-to-XFI links. Its four-channel architecture supports parallel testing and reduces component count, while the 1G/10G capability enables shared board designs across related link speeds. According to the Microchip product page, the protocol-agnostic repeater/retimer is intended for low-power board-level signal-integrity applications. The 17 x 17 mm FCBGA still demands careful ball-escape routing, uninterrupted reference planes, and thermal verification under sustained 10G traffic.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk VSC8256YMR-01 — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | VSC8256 |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Package | 256-ball FCBGA (17 x 17 mm) | 256-ball FCBGA (17 x 17 mm) |
| Channel Count | 4 channels | 4 channels |
| Supported Data Rate | 1G and 10G | 1G and 10G |
| Maximum Data Rate | 10 Gbps | 10 Gbps |
| Serial Interface | SFI to XFI | SFI to XFI |
| Protocol Support | Protocol-agnostic | Protocol-agnostic |
| 10GBASE-KR Function | Hardware-based host-side-only auto-negotiation and training | Hardware-based host-side-only auto-negotiation and training |
| Power Classification | Low-power device | Low-power device |
| Orderable Identifier | VSC8256YMR-01 | Family designation; configuration code requires confirmation |
Diferensiator Kunci
- Four channels in one package (vsVSC8256)
- Integrated 10GBASE-KR link functions (vsVSC8256)
- Protocol-independent 1G/10G conditioning (vsVSC8256)
Catatan Desain
Route the SFI and XFI differential pairs using the manufacturer's reference layout and maintain continuous reference planes through the 256-ball FCBGA escape area. Keep via transitions symmetric and minimize stubs on high-speed nets. The 17 x 17 mm ball grid leaves little room for routing corrections, so complete impedance and loss simulation before releasing the PCB layout.
Place decoupling capacitance directly adjacent to the appropriate supply and ground balls, and use the reference layout to preserve a low-inductance current path. Verify both steady-state supply noise and transient demand because four simultaneous 10G channels can create rapid dynamic-current events. Include adequate bulk capacitance on the rail while avoiding loop area between each capacitor and the device.
Evaluate insertion loss, return loss, differential skew, crosstalk, and jitter for the complete path from the source SerDes through the retimer to the destination SerDes. Do not qualify the channel from the IC alone. Include connector and package transitions, test pads, and neighboring aggressors in simulation, then repeat measurements with the final stack-up and components.
Estimate dissipation from the actual supply voltage, total channel activity, and power-consumption data before releasing the design. Estimated: dissipated power equals supply voltage multiplied by total device current, and junction temperature equals ambient temperature plus power dissipation multiplied by the effective board-level thermal resistance. Validate the estimate with thermal simulation and board-level measurements because the FCBGA concentrates heat beneath the package.
Informasi Konformitas
No specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was identified for VSC8256YMR-01 in the manufacturer and distributor product records.
