JHL7540-S-LMHR - Dual-Port Thunderbolt 3 Controller | Intel
MPN: JHL7540-S-LMHR ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $20.70613 | $20.71 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
JHL7540-S-LMHR Overview
A Thunderbolt 3 host controller is a system-level I/O interface semiconductor that coordinates a computer or platform with Thunderbolt-compatible peripherals. It belongs to the I/O controller class, within interface ICs and semiconductors. Thunderbolt technology combines high-bandwidth data transfer, display connectivity, and power delivery over a physical connection, while the controller supplies the platform-facing logic required to manage those functions. The JHL7540 is particularly relevant to desktop, workstation, and embedded Thunderbolt-capable platforms.
The verified JHL7540-S-LMHR ordering information establishes dual-port host functionality, Thunderbolt 3 controller classification, FC-CSP construction, tray packaging, and a 10.7 mm by 10.7 mm package. The suffix “S-LMHR” identifies the specific orderable configuration, but its decode and environmental qualifiers are not present in the supplied evidence and should not be inferred. Intel support and specifications pages provide authoritative sources for architecture, platform support, and lifecycle information, while distributor records provide sourcing and package details.
Because this controller supports a differential, high-speed interface, PCB design must prioritize short matched routes, continuous reference planes, controlled impedance, and careful connector-to-controller escape routing. BGA assembly also requires stencil, reflow-profile, pad-array, and solder-joint validation appropriate to the manufacturer’s package documentation. Exact layer count, ball-map details, and assembly process requirements must be obtained from the official package drawing before layout release.
Potential uses include Thunderbolt expansion chassis, high-resolution external-display systems, professional storage arrays, multi-display workstations, capture systems, and compact desktop platforms. Selection should begin with the host platform’s supported controller generation, firmware support, connector requirements, and Intel platform validation. A different Thunderbolt controller should not be substituted solely because its bandwidth appears similar; electrical, pin, firmware, and platform compatibility must be demonstrated first.
This page distinguishes verified ordering and product facts from unknown technical fields instead of filling gaps with assumptions. It also combines the supplied distributor evidence, Intel product resources, and a strict review of available cross-reference results. No pin-compatible replacement was established from the provided data, so any alternative MPN would be misleading until its footprint, pinout, electrical limits, firmware support, and platform behavior are independently verified.
The practical sourcing position is straightforward: confirm the Intel documentation revision and platform support, validate the complete 337-ball pin map and FC-CSP land pattern, and compare lead time against the production schedule before committing volume. The known tray package also requires procurement attention because large BGA components can be sensitive to moisture handling, solder-ball condition, and shipping exposure. Engineering release should include distributor traceability, assembly-yield testing, and firmware interoperability checks.
Drop-in alternatives for JHL7540-S-LMHR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
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Request AlternativesJHL7540-S-LMHR Specifications
| Product Type | Thunderbolt 3 controller |
| Device Category | I/O controller interface IC |
| Controller Role | Dual-port host |
| Ordering Variant | JHL7540-S-LMHR |
| Package Type | FC-CSP |
| Package Designation | BGA-337 |
| Package Dimensions | 10.7 mm x 10.7 mm |
| Package Ball Count | 337 balls |
| Mounting Type | Surface mount |
| Shipping Package | Tray |
| Technology | Thunderbolt 3 |
| RoHS Status | Compliant |
| Host Port Count | 2 ports |
JHL7540-S-LMHR tray Pin Configuration Guide
Pin configuration for JHL7540-S-LMHR (tray 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 JHL7540-S-LMHR.
Refer to the datasheet for full pin configuration.
Typical Applications
JHL7540-S-LMHR is suitable for 6 applications: Thunderbolt Expansion Chassis, Multi-Display Workstation, Professional External Storage, Video Capture and Editing System, High-Speed PCI Express Expansion, Compact Desktop Platform.
Thunderbolt Expansion Chassis
The Intel JHL7540-S-LMHR fits a dual-port Thunderbolt host design in which one upstream platform connection and downstream device routing must be coordinated. Its verified dual-port host role and 337-ball FC-CSP package make it a candidate for a custom expansion-chassis controller board, subject to Intel platform validation. Layout must preserve the high-speed escape path from the BGA to the connectors, with continuous reference planes and controlled impedance. Because the supplied excerpts do not state lane count, power, or thermal limits, the final architecture must use the official electrical documentation and a complete board-level signal-integrity review before release.
Multi-Display Workstation
JHL7540-S-LMHR is applicable to a Thunderbolt-capable workstation that uses a dual-port host controller to support high-bandwidth external-display and accessory connections. The verified source identifies Thunderbolt 3 controller functionality, dual-port host operation, and the 10.7 mm by 10.7 mm FC-CSP package, but it does not provide display-routing or lane details. Engineers should verify the intended platform firmware, connector routing, DisplayPort integration, and cable compatibility in Intel documentation. PCB placement should minimize high-speed interface length and maintain compliant escape routing from the 337-ball device.
Professional External Storage
A professional storage enclosure can use JHL7540-S-LMHR as the host-side Thunderbolt controller when it requires a dedicated dual-port interface device rather than a general-purpose external enclosure controller. The confirmed package is a 337-ball FC-CSP supplied in a tray, making process planning and moisture protection important during assembly. Verification is required because the supplied evidence does not expose SATA, PCIe lane, power, or thermal specifications. The storage architecture should therefore begin with Intel platform support, followed by controller datasheet review, connector-layout simulation, and end-to-end testing with the intended storage devices.
Video Capture and Editing System
JHL7540-S-LMHR may support a workstation-oriented video capture or editing system requiring a Thunderbolt connection for sustained high-bandwidth peripherals. The verified dual-port host identity and Thunderbolt 3 classification align with that use case, although no supplied result states sustained throughput, lane count, or power limits. Design validation must compare the system’s bandwidth, display requirements, firmware, and cable ecosystem against the official Intel specifications. Signal-integrity work should focus on the BGA escape geometry and connector transition because package and electrical details are insufficient for a complete layout from the current evidence.
High-Speed PCI Express Expansion
The JHL7540-S-LMHR can be evaluated for a Thunderbolt-to-PCI Express expansion platform when the host processor and firmware explicitly support the controller. The supplied data confirms a dual-port Thunderbolt 3 host interface IC but does not verify lane allocation, bifurcation rules, or downstream topology, so those details cannot be inferred. Engineers should confirm them in the official Intel documentation and validate every converter, switch, retimer, and connector path. A 337-ball BGA also requires assembly capability and careful power-and-ground distribution, making process qualification as important as nominal interface compatibility.
Compact Desktop Platform
JHL7540-S-LMHR is a candidate for a compact desktop or workstation motherboard that needs a dedicated dual-port Thunderbolt 3 host controller. Its verified 10.7 mm by 10.7 mm FC-CSP provides a defined board-landing geometry, but the available evidence does not establish production status, operating range, or thermal limits. Platform selection should be checked against Intel’s supported CPU and firmware combinations, while the schematic and layout must be based on the exact 337-ball pin map. Prototype validation should include high-speed compliance, connector interoperability, power sequencing, and repeated hot-plug testing before volume production.
Engineering reference data for JHL7540-S-LMHR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Brand | Intel |
| Package | 337-ball FC-CSP, 10.7 mm x 10.7 mm |
| Controller Type | Thunderbolt 3 controller |
| Host Port Configuration | Dual-port host |
| Ordering Variant | JHL7540-S-LMHR |
| Shipping Package | Tray |
| RoHS Status | Compliant |
| Verified One-Piece Price | $20.70613 as of 2026-10-21 |
Key Differentiators
- Verified dual-port host positioning (vs RTS5490)
- Manufacturer and platform identity (vs DSL7540)
- Defined BGA integration target (vs JHL7440)
Design Notes
Do not begin the JHL7540-S-LMHR layout from an inferred BGA symbol. Obtain the official 337-ball map and package drawing for the exact ordering variant, then classify every ball before schematic release. Match the land pattern to those drawings and preserve all exposed-pad, via-in-pad, solder-mask, and thermal requirements. A 10.7 mm by 10.7 mm package outline alone does not define a manufacturable footprint.
Route Thunderbolt interfaces as controlled-impedance differential pairs over a continuous reference plane and minimize connector-to-BGA escape length. Avoid stubs, unexplained plane splits, and unnecessary layer changes; follow Intel’s reference-layout and channel-design guidance once obtained. Because the supplied excerpts do not publish impedance values or pin functions, engineers must not invent them. Validate the final topology with simulation and measurements using representative cables and connectors.
Do not treat DSL7540, JHL7440, or RTS5490 as interchangeable solely because related Thunderbolt or USB4 controller searches mention them. The verified target is a dual-port host Thunderbolt 3 controller in a 337-ball FC-CSP. A valid replacement requires the same package and pinout plus equivalent electrical limits, firmware behavior, and platform support. None of those conditions was established by the supplied cross-reference results, so any substitution requires manufacturer documentation and board validation.
Plan a controlled BGA assembly process for the FC-CSP. Confirm the package height, coplanarity expectations, stencil design, solder-paste volume, reflow profile, underfill or fill requirements, and X-ray acceptance criteria from official Intel documentation. Because the supplied data identifies tray shipping, also define moisture handling and storage controls before receipt. Validate first articles for hidden solder joints and inspect under representative temperature, humidity, and mechanical conditions.
Compliance Information
The supplied JLCPCB result labels JHL7540-S-LMHR RoHS. No verified evidence was provided for REACH, AEC-Q100, lead-free status, halogen-free status, or conflict-minerals compliance.