JHL8440-S-LN6V - Thunderbolt 4 Controller | Intel
MPN: JHL8440-S-LN6V ✗ End of Life| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
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| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
JHL8440-S-LN6V Overview
A Thunderbolt controller is a high-speed interface controller that coordinates a Thunderbolt link between a host and compatible peripherals. In the system hierarchy, it belongs to interface ICs and semiconductor signal-processing devices rather than a power regulator or processor. Thunderbolt 4 controllers support the physical and logical connection requirements of modern high-bandwidth docks, storage devices, displays, and other peripherals, while the exact protocol features and electrical limits of this part require the Intel manufacturer documentation.
The verified distributor listing specifies the JHL8440 as a quad-port device and identifies the package as FC-CSP, with tape-and-reel shipment. Because the supplied data does not include the full package drawing, pin count, pin names, voltage ratings, power consumption, supported host interface details, or operating-temperature limits, those values are not inferred here. The JHL8440-S-LN6V ordering suffix should therefore be checked against the exact Intel documentation and system reference design before layout release.
The part is suitable for engineers designing compact Thunderbolt 4 peripherals, especially systems where multiple downstream ports must be coordinated by a dedicated controller. Quad-port capability can simplify product architecture compared with a design using multiple discrete interface devices, although the complete USB4 and Thunderbolt design still requires correct connector routing, signal-integrity control, firmware support, power delivery, and host compatibility.
Typical applications include Thunderbolt docks, external storage enclosures, docking stations, high-speed adapters, multi-port peripherals, and workstation or desktop accessories. The controller is placed with the system processor or peripheral controller and supports the physical interface implementation required by the end product. Actual usable bandwidth, port behavior, power delivery, and firmware capabilities must be confirmed from Intel's product documentation rather than inferred from the distributor category.
This page combines the verified manufacturer identification, distributor package information, source links, and engineering guidance. It does not fabricate missing electrical specifications, pricing, pinout data, or cross-reference alternatives. Confirm package details and protocol requirements with the Intel datasheet and Intel support materials before committing the design to production.
Drop-in alternatives for JHL8440-S-LN6V — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesJHL8440-S-LN6V Specifications
| Product Type | Thunderbolt 4 Controller |
| Manufacturer | Intel |
| Device Type | Quad Port Device |
| Interface Category | I/O Controller Interface IC |
| Connectivity | Thunderbolt 4 |
| Package | FC-CSP |
| Shipping Format | T&R |
| Orderable Part Number | JHL8440-S-LN6V |
| Controller Family | JHL8440 |
| Port Configuration | Quad port |
JHL8440-S-LN6V fc-csp Pin Configuration Guide
Pin configuration for JHL8440-S-LN6V (fc-csp package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for JHL8440-S-LN6V.
Refer to the datasheet for full pin configuration.
Typical Applications
JHL8440-S-LN6V is suitable for 6 applications: Thunderbolt 4 Docking Station, External Storage Enclosure, Multi-Port Thunderbolt Peripheral, High-Speed Desktop Accessory, Workstation Peripheral Hub, USB4 and Thunderbolt Adapter.
Thunderbolt 4 Docking Station
JHL8440-S-LN6V is suited to a docking-station architecture because the verified data identifies it as an Intel Thunderbolt 4 controller for a quad-port device. The controller can provide the central high-speed interface coordination required when a dock connects displays, storage, networking, and peripherals through multiple ports. Its FC-CSP package requires careful fanout and controlled-impedance implementation, while the quad-port designation helps the product architecture remain centered on one dedicated controller rather than several unrelated interface blocks. The final design still needs Intel-approved firmware, connector routing, power-delivery implementation, and validation against the target host and accessory ecosystem.
Recommended
External Storage Enclosure
The Intel JHL8440-S-LN6V can be considered for an external storage enclosure requiring a Thunderbolt 4 connection and multi-port interface organization. Its verified quad-port identity makes it relevant to designs that expose several USB4 or Thunderbolt-facing connections around an NVMe or storage subsystem. The controller does not replace the storage controller, flash interface, power conversion, or enclosure thermal design; it serves as the high-speed connectivity component. Engineers should confirm the Intel reference architecture, signal-integrity constraints, firmware support, and power requirements before integrating it with an NVMe controller or storage bridge.
Recommended
Multi-Port Thunderbolt Peripheral
JHL8440-S-LN6V is relevant to a multi-port Thunderbolt peripheral because the verified listing explicitly describes a quad-port device. In such a product, the controller can help organize multiple high-speed connections while the surrounding design handles protocol firmware, power delivery, display routing, and downstream-device management. The FC-CSP package and lack of supplied pinout data make package-specific layout mandatory rather than optional. Before release, compare the intended port map with Intel's current reference design and verify host compatibility, connector orientation, cable support, and thermal performance.
Recommended
High-Speed Desktop Accessory
The Intel JHL8440-S-LN6V can fit a high-speed desktop accessory that combines external storage, networking, and display-related connectivity. Its Thunderbolt 4 controller identity supports a modern interface architecture, while the quad-port designation provides a useful starting point for a multi-function accessory. The part is not a complete USB4 system, so the designer must still implement connector protection, reference-clock and power sequencing requirements, low-loss routing, grounding, and firmware integration. Since the supplied data does not confirm a specific reference design, validation should begin with the official Intel family documentation.
Recommended
Workstation Peripheral Hub
JHL8440-S-LN6V is applicable to a workstation-oriented peripheral hub where a single Thunderbolt 4 controller must coordinate a quad-port physical architecture. This can help a workstation accessory combine high-speed storage, display, and peripheral connections while retaining a compact controller package. The engineering challenge is integration rather than part selection: the exact Intel pinout, board stack-up, connector geometry, power architecture, and firmware must be known before schematic capture. Verify the JHL8440 family's operating limits and validation requirements directly with Intel documentation.
Recommended
USB4 and Thunderbolt Adapter
The Intel JHL8440-S-LN6V is a plausible central device for a USB4 or Thunderbolt adapter that expands one host connection into several downstream functions. The verified product identity confirms a quad-port Thunderbolt 4 controller, but it does not establish a universal adapter pinout or adapter reference design. Therefore, the part should be selected only after the adapter's required downstream devices, firmware image, power delivery, display support, and connector layout have been mapped against Intel's documentation. PCB implementation must use the exact FC-CSP land pattern and high-speed routing guidance rather than a generic controller footprint.
Recommended
Recommended Products Summary
Engineering reference data for JHL8440-S-LN6V — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Brand | Intel |
| Part Number | JHL8440-S-LN6V |
| Product Type | Thunderbolt 4 Controller |
| Interface Category | I/O Controller Interface IC |
| Port Configuration | Quad port |
| Connectivity | Thunderbolt 4 |
| Package | FC-CSP |
| Shipping Format | T&R |
Key Differentiators
- Dedicated Intel Thunderbolt 4 controller identity (vs RTS5490)
- Quad-port device architecture (vs Generic single-function USB interface controller)
- FC-CSP packaging (vs Lead-framed controller package)
Design Notes
Use the official Intel JHL8440 package drawing and reference layout before defining the FC-CSP land pattern. The verified distributor data identifies FC-CSP but does not provide ball count, pitch, body dimensions, or pin numbering. Confirm every power, ground, high-speed, configuration, and auxiliary signal connection against the exact ordering code before releasing Gerber files or placing a PCB footprint.
Treat all Thunderbolt and USB4 routes as controlled-impedance high-speed links. Route with a defined board stack-up, continuous return paths, short transition regions, and the connector and controller recommendations from Intel's reference design. Do not assume that a generic high-speed layout will pass because the connector is physically similar to another USB or peripheral interface.
Confirm the controller's supply rails, sequencing, decoupling, and power-delivery requirements from the manufacturer documentation before connecting external ports. Estimated power budgeting is not possible from the supplied data because operating voltage and current are marked as needed information. Prototype first with instrumentation that measures steady-state and transient rail behavior under the intended port loading.
Compliance Information
The supplied verified data does not state RoHS, REACH, lead-free, halogen-free, or conflict-mineral status. AEC-Q100 is not applicable to this general-purpose interface controller unless Intel separately designates a qualified automotive variant; no such qualification is provided here.