JHL8440-S-LN6U - Thunderbolt 4 Quad Port Controller | Intel
Teilenummer: JHL8440-S-LN6U ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $28.5 | $28,50 |
| 10 | $26.2 | $262,00 |
| 100 | $23.9 | $2.390,00 |
| 500 | $22.1 | $11.050,00 |
| 1.000 | $20.6 | $20.600,00 |
JHL8440-S-LN6U Übersicht
A Thunderbolt 4 controller is a high-speed multi-protocol I/O router that aggregates PCIe, DisplayPort, and USB-native traffic over a single USB Type-C cable. Within the platform hierarchy, the JHL8440 sits one tier below the CPU's PCIe root complex and bridges the host processor's PCIe 3.0 x4 upstream link to the physical USB Type-C PHYs, providing tunneling, DMA, and protocol multiplexing for every peripheral attached downstream. Compared with its predecessor (JHL7440 / Titan Ridge), the JHL8440 doubles downstream port count from 2 to 4 and mandates DMA protection (VT-d) for all PCIe tunneling, raising the bar for security and dock-level virtualization.
Key features include PCIe 3.0 x4 upstream host interface, integrated USB Type-C port logic for four ports, support for up to four 4K DisplayPort 1.4a streams via tunneling, backward compatibility with USB 3.2 and USB 2.0, and Intel VT-d based DMA protection. Intel lanes-internal segmentation supports peer-to-peer traffic between downstream devices without disturbing host CPU cycles. The 'S' suffix indicates the production silicon stepping; 'LN6U' is a sales-channel trim code.
Architecturally, the controller uses a multi-protocol mux/switch fabric with hardware DMA engines and a Type-C cable-orientation/poller state machine. It connects to the platform chipset via PCIe 3.0 x4 and exposes standard xHCI/eXtensible Host Controller interfaces for legacy USB, plus USB4 router ports for tunneling. The FC-CSP package keeps the PCB ballout compact and provides controlled-impedance routing for the high-speed serial links required at 20 GHz-class fundamental frequencies.
Typical applications include high-end Thunderbolt 4 docks, workstation motherboards with rear-panel TB4 ports, content-creation desktops, eGPU enclosures, professional video-editing rigs, and high-end laptops. The quad-port capability is particularly valuable for docks that fan out to multiple 4K monitors while simultaneously exposing USB 3 and PCIe storage downstream.
When designing with the JHL8440-S-LN6U, observe Intel's Thunderbolt 4 platform design guidelines for PCB stackup, AC-coupling capacitor placement on all four high-speed links, and firmware deliverable via the platform's discrete SPI ROM. Treat the part as a single-source controller per platform; lifecycle management is driven by Intel's roadmap.
This page consolidates distributor pricing, drop-in alternatives and platform-level design notes not found in Intel's public specifications page, giving procurement and engineering teams a single reference for the JHL8440-S-LN6U.
Drop-in-Alternativen für JHL8440-S-LN6U – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
JHL7540-S-LN6U
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
JHL7440-S-LN6U
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
JHL8440-S-LN6U Technische Daten
| Product Name | Intel JHL8440 Thunderbolt 4 Controller |
| Part Number | JHL8440-S-LN6U |
| Device Type | I/O Controller Interface IC |
| Funktion | Thunderbolt 4 (USB4) quad-port host/router controller |
| Downstream Ports | 4 x Thunderbolt 4 / USB4 Type-C |
| Per-Port Bandwidth | 40 Gbps bidirectional (USB4 Gen 3 x2) |
| Upstream Interface | PCI Express 3.0 x4 |
| DisplayPort Support | DisplayPort 1.4a with tunneling, DSC, Adaptive-Sync |
| USB Compatibility | USB4, USB 3.2, USB 2.0 |
| PCIe Tunneling | PCIe 3.0 tunneling with VT-d DMA protection |
| Gehäuse | FC-CSP (Flip-Chip Chip-Scale Package) |
| Marketing Code Name | Goshen Ridge / Maple Ridge family |
| Montageart | Surface Mount (BGA) |
| RoHS-Status | Compliant |
JHL8440-S-LN6U fc-csp (flip-chip chip-scale package) Pinbelegungsleitfaden
Pinbelegung für JHL8440-S-LN6U (fc-csp (flip-chip chip-scale package)-Gehäuse). Pin-Nummerierung, Funktionen und Anschlussdiagramme sind im Herstellerdatenblatt definiert. Entnehmen Sie diesem den genauen Footprint und Lötrichtlinien.
Keine detaillierten Pinbelegungsdaten verfügbar für JHL8440-S-LN6U.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
JHL8440-S-LN6U ist geeignet für 6 Anwendungs: Thunderbolt 4 Docking Station, Workstation Motherboards with Rear-Panel TB4, External GPU (eGPU) Enclosures, Content-Creation Desktop PCs, Professional Video Editing Rigs, Premium Laptop Motherboard TB4 Implementation.
Thunderbolt 4 Docking Station
The JHL8440-S-LN6U is the primary quad-port Thunderbolt 4 controller for premium docking stations that fan a single upstream USB Type-C connection out to multiple 4K monitors, USB 3 peripherals, and PCIe storage simultaneously. Its four downstream 40 Gbps ports provide the bandwidth headroom needed to drive dual or quad 4K60 displays via DP 1.4a tunneling with DSC while still exposing 10 Gbps USB 3.2 lanes and a PCIe 3.0 tunnel to an external GPU. Designers building TB4-certified docks standardize on the JHL8440 because its mandatory VT-d DMA protection is a Thunderbolt 4 certification prerequisite. Compared with the dual-port JHL7440, the JHL8440 eliminates the need for a second Thunderbolt controller or a downstream USB4 hub, which simplifies the BOM, lowers power, and shortens firmware validation time. The PCIe 3.0 x4 upstream link attaches to the dock SoC or platform chipset and is sufficient for typical dock workloads.
Empfohlen
Workstation Motherboards with Rear-Panel TB4
High-end desktop workstation motherboards use the JHL8440-S-LN6U to expose four Thunderbolt 4 Type-C ports on the rear I/O panel, enabling direct attachment of TB4 storage, capture cards, and 4K monitors without an external dock. The controller's PCIe 3.0 x4 upstream link to the chipset delivers the bandwidth needed for high-throughput peripherals in parallel with multiple DisplayPort streams. The mandatory VT-d DMA protection ensures PCIe tunneling from external GPU enclosures cannot bypass the workstation's memory isolation - critical for content-creation workloads where the system also handles sensitive customer data. Most Z-series and W-series motherboard designs pair the JHL8440 with a discrete SPI ROM for firmware delivery and with a Type-C port controller on each connector. The FC-CSP package keeps the controller footprint compact enough to fit near the rear IO without disrupting other signal routing.
Empfohlen
External GPU (eGPU) Enclosures
High-performance external GPU enclosures use the JHL8440-S-LN6U as the upstream Thunderbolt 4 controller that tunnels PCIe 3.0 x4 between the eGPU and the host laptop over a single USB Type-C cable. The 32 Gbps effective PCIe link bandwidth is sufficient for most gaming-grade GPUs at 1080p/1440p workloads, while the controller's VT-d DMA protection guarantees the eGPU cannot read host memory outside its assigned IOMMU region. Designers benefit from the JHL8440's four downstream port fanout, which lets the same enclosure additionally expose a downstream TB4 port for chaining further peripherals - useful when the host laptop only has one TB4 port. The controller's display tunneling capability is also leveraged to keep display signals on the dock side, freeing GPU bandwidth for rendering. The FC-CSP package supports the tight PCB envelope of slim eGPU chassis.
Empfohlen
Content-Creation Desktop PCs
Content-creation desktops from professional video editors and colorists integrate the JHL8440-S-LN6U to provide four TB4 ports on the rear IO for attaching TB4 RAID storage, color-graded reference monitors, and capture cards in parallel. Because four 40 Gbps ports are available, the workstation can ingest multiple 4K ProRes or RAW streams from Thunderbolt-attached disk arrays while driving a reference monitor via DisplayPort 1.4a tunneling without exhausting upstream PCIe 3.0 x4 bandwidth. This is the workload class where the JHL8440 truly differentiates from the JHL7440: dual-port controllers would force the studio to daisy-chain devices and effectively halve throughput for each endpoint. The FC-CSP package is small enough to live beneath a single heatsink on the ATX motherboard, and the controller's commercial lifecycle support aligns with the long product cycles typical of professional desktops.
Empfohlen
Professional Video Editing Rigs
Professional video editing rigs based on the JHL8440-S-LN6U attach four TB4-attached devices at once - typically a pair of TB4 RAID enclosures, an AJA or Blackmagic capture card, and a color-graded reference monitor - all while the laptop works in clamshell or studio mode. The JHL8440's VT-d DMA protection means the capture card can ingest uncompressed 4K video directly into the editor's timeline buffer without exposing the rest of the host's memory to DMA attacks - a vital feature when source material is confidential. Four 40 Gbps downstream ports also let the editor hot-plug an external SSD or an LTO tape drive mid-edit without losing the other Thunderbolt connections. The FC-CSP form factor fits inside a 1U or 2U rack chassis and the controller's thermal envelope is consistent with passively-cooled chassis designs.
Empfohlen
Premium Laptop Motherboard TB4 Implementation
Premium 14-inch and 16-inch laptops integrate the JHL8440-S-LN6U on their motherboard to expose two or four TB4 ports on the chassis, enabling these designs to act as either source hosts (in clamshell mode) or TB4 docks (in clamshell-plus-monitor mode). The 40 Gbps per-port capacity allows the laptop to drive dual 4K monitors, attach an external GPU and TB4 storage at the same time, while the controller's compact FC-CSP package fits within the laptop's slim chassis along with the existing wireless card and battery management ICs. The PCIe 3.0 x4 upstream interface typically connects to the platform controller hub (PCH) so that the CPU's main PCIe lanes remain free for GPU and NVMe. Compared with an external dock controller, the on-board JHL8440 also handles cable-reorientation and BMC firmware updates via the laptop's embedded controller, streamlining the overall platform boot flow.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für JHL8440-S-LN6U – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | JHL7540-S-LN6U | JHL7440-S-LN6U |
|---|---|---|---|
| Brand | Intel | Intel | Intel |
| Package | FC-CSP | FC-CSP | FC-CSP |
| Per-Port Bandwidth | 40 Gbps | 40 Gbps | 40 Gbps |
| Upstream Interface | PCIe 3.0 x4 | PCIe 3.0 x4 | PCIe 3.0 x4 |
| USB4 Native Support | Yes | Yes | Limited (TB3-centric) |
| VT-d DMA Protection | Mandatory (TB4) | Mandatory (TB4) | Optional (TB3) |
| DisplayPort 1.4a Tunneling | Yes, with DSC | Yes, with DSC | Yes (TB3 with DP alt-mode) |
| Generation | Thunderbolt 4 (Goshen/Maple Ridge) | Thunderbolt 4 | Thunderbolt 3 (Titan Ridge) |
Wichtigste Unterscheidungsmerkmale
- Quad downstream port count without external hub (vs. JHL7440-S-LN6U)
- Mandatory Intel VT-d DMA protection (vs. JHL7440-S-LN6U)
Designhinweise
The JHL8440-S-LN6U operates the PCIe 3.0 x4 upstream link and four Thunderbolt 4 downstream ports at fundamental frequencies above 10 GHz effective. Designers MUST follow Intel's Thunderbolt 4 platform design guide for PCB stackup (typically 4 mil stripline on outer/inner layers, controlled impedance of 85 ohm differential for Thunderbolt lanes), AC-coupling capacitor placement within 4 mm of each Type-C connector, and reference-clock distribution. Realized BOM cost of a TB4 platform is heavily dominated by the matching network parts and the discrete Type-C connector product family.
Estimated: the FC-CSP package has a typical junction-to-ambient thermal resistance in the 15-25 C/W range under natural convection, which means a 3 W power draw (typical for quad-port TB4 traffic) results in a 45-75 C junction temperature rise above ambient. In a sealed dock chassis or laptop bottom cover, plan for a copper thermal pad connecting the FC-CSP lid to a chassis spreader and verify with a thermocouple. Sustained PCIe tunneling of a discrete GPU draws noticeably more controller power than light USB-only workloads.
Do not assume pin-compatibility between JHL8440 and JHL7440 even though both share Intel FC-CSP-style packaging - the actual ball map, ball count, and firmware pin configuration differ between the two generations. Intel publishes a discrete platform migration guide that flags any firmware-side IMR (Integrated MAC Address ROM) and SPI-ROM pin needing remapping. A common failure mode is shipping a JHL7440 firmware image to a JHL8440-equipped chassis; this manifests as the controller failing Thunderbolt 4 certification even though the dock enumerates USB devices correctly.
Compliance-Informationen
Per Mouser listing the JHL8440-S-LN6U is RoHS compliant; AEC-Q100 not relevant for a Thunderbolt platform IC. REACH and halogen-free status not specified in the public listing - confirm with Intel on request.
