JHL8440 - Thunderbolt 4 Controller | Intel
料号： JHL8440 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
JHL8440 概述
A Thunderbolt controller is a high-speed interface IC that coordinates protocol translation, host or device connectivity, DisplayPort integration, and USB4 traffic. In the system hierarchy, it belongs to interface controllers, data-processing semiconductors, and computer connectivity solutions. Thunderbolt 4 builds on the 40 Gbps-class connectivity positioning described in the verified comparison material, but the supplied JHL8440 records do not establish lane count, maximum data rate, power delivery, DisplayPort configuration, host-versus-device operation, supported operating temperature, or power-consumption values.
The verified distributor record gives the commercial identifier “JHL8440 S LN6U” and describes an FC-CSP tray package. Another search result identifies the “JHL8440 S LN6V” designation, but the supplied data does not establish whether these ordering codes differ only in packaging, shipment form, or another ordering attribute. Do not treat them as interchangeable without Intel documentation or an authorized distributor’s package cross-reference. The supplied comparison source also mentions RTS5490, JHL7440, JHL7540, and JHL8440 as 40 Gbps-class devices, but it specifically distinguishes RTS5490 as a USB4 hub controller and does not prove drop-in equivalence.
Typical system uses for a device in this class include USB4 and Thunderbolt docks, laptop and desktop platform controllers, high-bandwidth storage, external display systems, and compact multiport accessories. These applications are engineering-context suggestions rather than verified Intel reference designs for JHL8440. A production design must confirm signal integrity, power sequencing, firmware support, connector requirements, and thermal performance against the official Intel documentation. This page consolidates the verified manufacturer and distributor references while explicitly marking unspecified technical data as unavailable.
直接替换替代料： JHL8440 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： JHL8440 （相同外形与封装尺寸） ——差异在于 Package.
快速对比工具——选择替代料号进行并排对比：
JHL8440 S LN6V
✅ 直接替换📋 参考替代料（不在目录中）
JHL8440 S RKFK
✅ 直接替换📋 参考替代料（不在目录中）
JHL8440 S RKFJ
✅ 直接替换📋 参考替代料（不在目录中）
JHL8440 规格参数
| Device Type | Thunderbolt 4 controller |
| Product Category | I/O controller interface IC |
| Port Configuration | Quad-port device |
| Interface Standard | Thunderbolt 4 |
| Connectivity Class | 40 Gbps class |
| 封装 | FC-CSP |
| Distributor Ordering Designation | JHL8440 S LN6U |
| Manufacturer | Intel |
| Shipping Form Shown | Tray |
JHL8440 fc-csp 引脚配置指南
JHL8440（fc-csp 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： JHL8440.
请参阅 数据手册 以查看完整引脚配置。
典型应用
JHL8440 适用于 6 应用s: Thunderbolt 4 Dock Controller, USB4 Storage Accessory, High-Bandwidth External Display Adapter, Laptop Platform Connectivity, External PCIe Expansion, Multiport High-Speed Interface Hub.
Thunderbolt 4 Dock Controller
The Intel JHL8440 is relevant to a Thunderbolt 4 dock because it is identified as a quad-port high-speed controller in the 40 Gbps connectivity class. A dock implementation could use the controller to coordinate external high-speed links, but the verified data does not specify the exact port mapping, USB4 host capability, DisplayPort integration, or power-delivery behavior. Before schematic capture, engineers should obtain the official pinout and reference design, then validate USB4 tunnel mode, DisplayPort routing, connector lane assignments, and platform firmware support on the target computer. The FC-CSP package also makes careful ball-escape and return-path planning important.
推荐
USB4 Storage Accessory
JHL8440 can be evaluated for a USB4 or Thunderbolt storage accessory where high-bandwidth external connectivity is required. The verified comparison material places the controller in the 40 Gbps class, but it does not confirm sustained storage throughput, USB4 device or host mode, PCIe tunneling configuration, or power-management requirements. An engineering prototype should therefore treat the 40 Gbps class description as a system-level starting point, not as a guaranteed end-to-end storage rate. Validate disk-controller compatibility, cable requirements, thermal behavior, and operating-system enumeration during system bring-up.
推荐
High-Bandwidth External Display Adapter
The JHL8440 may be relevant to an external display adapter that combines Thunderbolt or USB4 connectivity with high-speed video transport. However, the verified material does not state whether JHL8440 supports DisplayPort, how many display streams are available, or which host platforms provide the required firmware. Engineers should confirm those functions in Intel’s official documentation before selecting the device. Layout work must then account for the FC-CSP package, high-speed lane routing, connector escape, reference-clock requirements, and power sequencing. Prototype testing should cover cable compatibility and hot-plug behavior across supported displays.
推荐
Laptop Platform Connectivity
JHL8440 is positioned as a Thunderbolt 4 controller for platform connectivity, making it a candidate for laptop or compact desktop designs that need a high-speed controller alongside USB4 and display functions. The supplied data identifies the part as a quad-port Intel interface IC but does not provide processor-platform interfaces, firmware dependencies, or power-management details. Platform validation must therefore confirm operating-system support, BIOS or firmware requirements, lane ownership, sleep and resume behavior, and coexistence with other USB or PCIe functions. Use Intel’s platform design documentation to establish the controller-to-SoC connection before final board release.
推荐
External PCIe Expansion
The JHL8440 controller class may be considered in an external PCIe expansion enclosure that uses Thunderbolt or USB4 tunneling. The supplied evidence does not verify PCIe lane support, bifurcation rules, tunnel mode, cable length limits, or downstream device compatibility, so those requirements must be confirmed before design selection. A practical design review should include signal-integrity simulation, connector and cable qualification, power-supply sequencing, thermal testing, and operating-system enumeration. The controller should be treated as an interface component within a larger enclosure architecture rather than as a complete expansion solution.
推荐
Multiport High-Speed Interface Hub
The quad-port description makes JHL8440 relevant to systems that need a central high-speed interface component for coordinating multiple connectivity paths. The verified data does not identify how the four logical ports are divided among Thunderbolt, USB4, display, or internal routes, so system partitioning must be based on Intel’s official architecture documentation. The design should verify lane budget, port-sharing rules, connector count, power-supply capacity, and firmware support. During hardware bring-up, test enumeration and data transfer with each intended port combination rather than assuming that all four ports can operate simultaneously at the maximum class rate.
推荐
推荐产品汇总
工程参考数据： JHL8440 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | JHL8440 S LN6V | JHL8440 S RKFK | JHL8440 S RKFJ |
|---|---|---|---|---|
| Brand | Intel | Intel | Intel | Intel |
| Package | FC-CSP | FC-CSP reported; suffix-specific mechanics unverified | FC-CSP family package not independently verified | FC-CSP family package not independently verified |
| Device Type | Thunderbolt 4 controller | Intel JHL8440 Thunderbolt 4 controller | JHL8440 family ordering reference | JHL8440 family ordering reference |
| Order Code Shown | JHL8440 | JHL8440 S LN6V | JHL8440 S RKFK | JHL8440 S RKFJ |
| Manufacturer | Intel | Intel | Intel | Intel |
| Verified Drop-In Status | Target device | Same-family ordering code; suffix equivalence not fully verified | Same-family ordering code; suffix equivalence not fully verified | Same-family ordering code; suffix equivalence not fully verified |
关键差异点
- Verified device identity and positioning （对比 RTS5490)
- Controller family positioning （对比 JHL7440)
- Supplier traceability context （对比 JHL8440 S LN6V)
设计说明
Begin with Intel’s official FC-CSP mechanical drawing and ball-map documentation before defining the PCB footprint. Keep high-speed differential routes short, continuous, and referenced to a suitable plane, and verify pad and via geometry against the package escape requirements. The supplied data does not provide pin numbering, ball count, or differential impedance targets, so these values must not be guessed; use manufacturer-defined constraints and validate the final stack-up with signal-integrity analysis.
Define the complete JHL8440 power tree only after obtaining the official electrical specifications. Separate and decouple each required supply according to Intel’s recommended values, place bulk capacitance near the appropriate package or regulator pins, and keep switching-node return currents away from high-speed signal references. Because supply voltage, current, sequencing, and power-state requirements are absent from the supplied evidence, do not assume that a general-purpose USB-C power architecture is sufficient.
Do not substitute JHL7440, JHL7540, or RTS5490 solely because the supplied comparison result places them in the 40 Gbps class. Those devices may have different roles, packages, lane assignments, firmware requirements, and platform interfaces. A valid replacement requires an Intel-approved ordering code or a verified pin-to-pin and protocol-compatible part, followed by schematic, layout, firmware, and system-level regression testing.
Plan high-speed routing around connector launches, protection devices, clocks, and return-path discontinuities. Account for insertion loss, impedance transitions, connector parasitics, and the effect of adjacent high-speed lanes, using the Intel platform guidelines as the starting point. The verified data does not specify the JHL8440 lane rate or signal-integrity limits, so production release requires simulation and measurement with the intended package, PCB stack-up, cable, and enclosure.
合规信息
The supplied verified data does not include a product-specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statement. Compliance must be confirmed using Intel documentation or the authorized distributor’s current product record.