VSC8256EV - Quad 1G/10G Serial Repeater | Microchip Technology
Référence : VSC8256EV ✓ ActifVSC8256EV Présentation
Alternatives de remplacement direct pour VSC8256EV — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesVSC8256EV Spécifications
| Product Type | Quad serial-to-serial repeater/retimer |
| Protocol Agnostic | Yes |
| Supported Data Rate - LAN Mode | 10.3125 Gbps |
| Supported Data Rate - WAN Mode | 9.95328 Gbps |
| Supported Data Rate - Low-Speed Mode | 1.25 Gbps |
| 10GBASE-KR Auto-Negotiation | Integrated hardware-based host-side-only support |
| 10GBASE-KR Training | Integrated hardware-based host-side-only support |
| Signal Conditioning Mode | Protocol-agnostic signal conditioner |
| Standards Supported | IEEE 802.3ae, IEEE 802.3ap, SFF-8431, ITU-T G.8261, ITU-T G.8262 |
| Boîtier | FCBGA |
| Package Form Factor | Small form factor, low-power |
| Application | Board-level high-speed signal integrity |
| Number of Channels | 4 |
Guide de configuration des broches du VSC8256EV small form factor, low-power
Configuration des broches du VSC8256EV (boîtier small form factor, low-power). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour VSC8256EV.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
VSC8256EV convient pour 6 applications: 10G Ethernet Backplane, Telecommunications Serial Links, High-Speed Card-to-Card Interconnect, SFP-Style 10G Interfaces, Protocol-Agnostic Test Equipment, Industrial Network Equipment.
10G Ethernet Backplane
The VSC8256EV is a strong candidate for 10G Ethernet backplane evaluation because it supports 10.3125 Gbps LAN mode and includes hardware-based host-side-only 10GBASE-KR auto-negotiation and training. Its protocol-agnostic repeater/retimer architecture can help recover timing and signal integrity across board-level channels. The implementation should provide carefully controlled clocking, power, and high-speed differential routing, while the complete manufacturer datasheet is used to confirm lane assignments, bypass modes, and electrical limits.
Recommandé
Telecommunications Serial Links
VSC8256EV can support telecommunications equipment that transports 1G, 9.95328 Gbps WAN, or 10.3125 Gbps LAN-mode serial signals across boards and modules. The protocol-agnostic signal conditioner is useful when the physical link must be equalized without tying the device to a single protocol implementation. Designers should budget the FCBGA thermal and power characteristics into the system and verify jitter, lane polarity, and reference-clock requirements from the official documentation.
Recommandé
High-Speed Card-to-Card Interconnect
The VSC8256EV can be evaluated in card-to-card interconnect systems where insertion loss, skew, or jitter threatens reliable serial transmission. Its four-channel repeater/retimer configuration provides a way to condition multiple high-speed lanes on the same board, while the integrated 10GBASE-KR host-side functions can simplify compatible link bring-up. Production deployment requires channel characterization, loss-budget verification, controlled impedance routing, and validation across temperature and supply corners.
Recommandé
SFP-Style 10G Interfaces
VSC8256EV is applicable to SFP-style high-speed interface experiments because the available VSC8256 documentation references SFF-8431 and supports 10.3125 Gbps LAN-mode operation. The device can be positioned as a board-level retiming element between a host serializer or PHY and a high-speed copper channel. Because the supplied data does not expose exact package pins or reference-clock requirements, the board design must follow the manufacturer reference schematic and exact FCBGA layout guidance.
Recommandé
Protocol-Agnostic Test Equipment
The VSC8256EV is suitable for laboratory and test-equipment platforms that need to characterize several high-speed serial link conditions with one physical-layer device. Its signal-conditioning mode supports 1.25 Gbps, 9.95328 Gbps WAN mode, and 10.3125 Gbps LAN mode, enabling repeatable evaluation of different link rates. The test fixture should provide low-noise supplies, a stable reference clock, controlled-impedance connectors, and automated measurements of eye width, jitter, and error behavior.
Recommandé
Industrial Network Equipment
VSC8256EV can support industrial networking equipment requiring reliable recovery of 1G or 10G serial data across internal PCB links. The protocol-agnostic architecture is advantageous when the same signal-conditioning platform must interoperate with multiple host-side controllers or PHY arrangements. For industrial availability, engineers must confirm operating-temperature limits, lifecycle status, environmental qualification, and long-term supply using the complete manufacturer and distributor documentation.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour VSC8256EV — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Package | FCBGA |
| Brand | Microchip Technology |
| Device Type | Quad serial repeater/retimer |
| LAN Data Rate | 10.3125 Gbps |
| WAN Data Rate | 9.95328 Gbps |
| Low-Speed Data Rate | 1.25 Gbps |
| 10GBASE-KR Support | Host-side-only auto-negotiation and training |
| Protocol Support | Protocol agnostic |
| Price at Quantity 1 | Current distributor quotation required |
Principaux différenciateurs
- Integrated 10GBASE-KR host-side support (vs No verified alternative)
- Multi-rate serial support (vs No verified alternative)
- Four-channel architecture (vs No verified alternative)
Notes de conception
Use the exact Microchip FCBGA land pattern, ball map, and reference layout rather than deriving an equivalent footprint from the package description. High-speed differential lanes should use continuous reference planes, controlled impedance, short return paths, and symmetrical component placement. Confirm the required via and antipad geometry against the manufacturer layout guidance before fabrication.
Follow the manufacturer's recommended supply topology, decoupling placement, and sequencing requirements from the complete datasheet. The available data identifies a low-power FCBGA implementation but does not provide supply voltage, current, or capacitor values, so power budgeting and bulk-capacitor sizing must remain open until those specifications are confirmed.
Characterize the complete channel from transmitter through connectors or package escape paths to the VSC8256EV inputs and onward to the far endpoint. At 10.3125 Gbps, insertion loss, reflections, skew, and jitter can dominate system performance. Use the 10GBASE-KR and timing-jitter standards identified in the VSC8256 summary as additional design context, but validate against the actual channel.
Calculate FCBGA power dissipation from the actual supply voltage and lane-loading conditions after obtaining the missing electrical ratings. Preserve the manufacturer's thermal-pad and via-array requirements, provide uninterrupted copper where specified, and avoid placing heat-sensitive components directly beneath the retimer. Validate junction temperature across ambient temperature and worst-case traffic.
Do not treat a distributor cross-reference tool result as proof of drop-in compatibility. The verified sources contain no named pin-compatible substitute for VSC8256EV. A true replacement would require the same FCBGA ballout, compatible supply and reference-clock pins, equivalent high-speed lane behavior, and verified protocol functionality; otherwise a board redesign may be required.
Informations de conformité
The supplied verified excerpts do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred.
