9FGV0841AKLF - 8-Output PCIe Gen1-4 Clock Generator
MPN: 9FGV0841AKLF ✓ Active| Qty | Unit Price | Extended |
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9FGV0841AKLF Overview
What is a PCIe clock generator? A PCIe clock generator is a timing IC that distributes a stable reference clock to computer, storage, networking, and expansion systems. Its output network must preserve signal integrity across long traces, connectors, and multiple loads. The 9FGV0841 belongs to the clock generator and fanout buffer category, supporting PCI Express timing requirements from Gen1 through Gen4.
The key features are eight low-power outputs, integrated 100 ohm terminations, eight output enables, and selectable spread-spectrum modes. The integrated terminations reduce the need for external output termination components and help simplify PCB layouts. Output enables allow unused outputs to be disabled during power-management or system-configuration scenarios, while spread-spectrum options can reduce concentrated clock-related EMI.
According to the Renesas 9FGV0841 datasheet, the device is intended for PCIe Gen1-4 applications and provides the 1.8 V clocking architecture required by the target interface family. The verified distributor listing identifies the device as an application-specific clock or frequency generator and fanout buffer. The family also includes related ordering variants, but package suffix, temperature, and production details must be checked against the exact datasheet before substitution.
Typical applications include PCI Express endpoint cards, host bridges, PCI Express switches, server and workstation clock distribution, embedded PCIe expansion systems, and high-speed storage controllers. The part is most useful when a design needs multiple locally distributed PCIe clocks and controlled clock state management rather than a single isolated oscillator output.
For a robust layout, route clocks as short, matched, continuously referenced traces and place decoupling close to the supply pins. Confirm output enable polarity, supply sequencing, trace impedance, and termination requirements in the manufacturer datasheet before layout release. This page combines verified manufacturer and distributor information with application guidance and clearly identifies unavailable specifications rather than estimating them.
Drop-in alternatives for 9FGV0841AKLF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with 9FGV0841AKLF (same form factor and footprint) — differing in Number of Outputs, Output Enables, Package, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
9FGV0841AKILF
✅ Drop-In✓ In Stock
$4.4 / Unit
View Datasheet →9FGV0841AKLF Specifications
| Product Type | PCIe clock generator and fanout buffer |
| PCIe Generation Support | Gen1 through Gen4 |
| Number of Outputs | 8 outputs |
| Output Voltage | 1.8 V |
| Integrated Output Termination | Zo = 100 ohm |
| Output Enables | 8 output enables |
| Spread Spectrum Options | Spread off plus 2 spread-spectrum levels |
| Package | 48-VFQFPN, 6 x 6 mm |
| Package Pin Count | 48 pins |
| Mounting Type | Surface mount |
| Application | PCI Express Gen1-4 clocking |
| Output Termination Type | Integrated |
| Clock Management | 8 independently controlled output enables |
| RoHS Status | unknown |
| REACH Status | unknown |
| Automotive Qualification | not_applicable |
9FGV0841AKLF 48 pins Pin Configuration Guide
Pin configuration for 9FGV0841AKLF (48 pins 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 9FGV0841AKLF.
Refer to the datasheet for full pin configuration.
Typical Applications
9FGV0841AKLF is suitable for 6 applications: PCI Express Endpoint Clock Distribution, PCI Express Switch Timing, Server Platform Clock Tree, PCIe Expansion Card, High-Speed Storage Controller Platform, Embedded PCIe Industrial Controller.
PCI Express Endpoint Clock Distribution
The Renesas 9FGV0841AKLF fits PCI Express endpoint cards that need a local 1.8 V reference distributed to multiple interface sections. Its eight outputs allow separate clock destinations to be routed according to board topology, while the integrated 100 ohm terminations can simplify output-network implementation. The part is specifically identified for PCIe Gen1-4 applications. Before layout approval, engineers must confirm the reference-clock frequency, output jitter requirements, enable polarity, and the exact PCB footprint from the official datasheet. The practical benefit is reduced distribution complexity compared with replicating independent clock sources, but trace length matching and return-path control remain essential.
Recommended
PCI Express Switch Timing
The 9FGV0841AKLF can support timing distribution in a PCI Express switch design because it is an eight-output clock generator intended for Gen1-4 PCIe systems. Multiple outputs can serve separate downstream links or internal timing domains, subject to the device's exact timing and channel requirements. Integrated output terminations are useful when the PCB layout requires controlled clock-end points. The design should use controlled-impedance routing and verify channel-to-channel behavior in the datasheet. Because the verified information does not provide jitter, skew, supply, or frequency limits, the clocking architecture must be reviewed against the switch's actual PCIe requirements.
Recommended
Server Platform Clock Tree
A server platform can use the 9FGV0841AKLF where a central PCIe timing source must feed multiple board-level destinations. The eight outputs provide a way to organize clock routing without relying on eight separate clock-generation blocks. Its low-power positioning and output enables may help with power management, although the verified snippets do not provide current consumption or enable timing values. Integration must account for the device's 1.8 V clock level, integrated 100 ohm output terminations, and the 48-VFQFPN footprint. Confirm source and sink voltage tolerances, reference-clock stability, and system-level jitter before using it in a production server design.
Recommended
PCIe Expansion Card
The device is appropriate for a PCI Express expansion card when the card requires a distributed clock across multiple internal interface sections. Its Gen1-4 positioning makes it relevant to PCIe system timing, while the eight output enables provide a mechanism for controlling clock outputs during normal operation and unused-channel states. The integrated terminations can reduce the number of external output termination footprints, but the exact implementation still depends on trace impedance and receiver loading. Designers should verify the official pinout and package drawing, preserve a continuous reference plane, and check the output-enable truth table before defining the card's control logic.
Recommended
High-Speed Storage Controller Platform
The 9FGV0841AKLF may be used in a storage-controller platform that includes PCIe links and requires local clock distribution. A single central generator can supply multiple destinations and reduce clock-source duplication, while spread-spectrum settings can help manage EMI concentration in dense systems. The verified data does not state whether the exact storage controller requires a particular spread-spectrum percentage, so that setting must be obtained from the system specification and device datasheet. Route outputs as short, impedance-controlled traces and validate jitter, supply noise, and clock-enable transitions at the receiver.
Recommended
Embedded PCIe Industrial Controller
An embedded industrial controller with PCIe can use the 9FGV0841AKLF when several internal clock domains need coordinated distribution. Its output enables support clock-state management, and the spread-spectrum choices provide options for reducing clock-related EMI in an enclosure or cable-adjacent system. The exact suitability depends on the controller's required frequency, jitter, supply voltage, temperature range, and enable sequence, none of which are fully present in the supplied web snippets. Use the manufacturer datasheet for timing limits and validate the 6 x 6 mm 48-VFQFPN footprint against the PCB assembly process.
Recommended
Engineering reference data for 9FGV0841AKLF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 9FGV0841AKILF |
|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics |
Key Differentiators
- Eight-output clock distribution in one device (vs 9FGV0841AKILF)
- Integrated output termination (vs 9FGV0841AKILF)
- Integrated clock-management controls (vs 9FGV0841AKILF)
Design Notes
Use the official Renesas package drawing for the 48-VFQFPN 6 x 6 mm footprint before routing the PCB. Keep power and ground connections short, provide local decoupling according to the datasheet, and preserve a continuous return path beneath every clock trace. Do not derive pad, mask, or courtyard dimensions from distributor package descriptions alone.
Route PCIe clock outputs as controlled-impedance traces with matched lengths where the system timing budget requires it. Account for the integrated Zo = 100 ohm output termination in the channel design and verify receiver loading, trace loss, and any external termination requirements against the manufacturer datasheet.
Confirm the exact supply voltage, input reference frequency, and sequencing requirements from the Renesas datasheet before power-up. The verified snippets establish 1.8 V PCIe output operation but do not provide the complete supply or reference-input specification. Use the datasheet's recommended decoupling and test-point layout rather than estimating values.
Do not treat the AKLF and AKILF suffixes as interchangeable without reviewing the exact orderable-parts table and package data. Do not assume that a distributor page listing a PCIe generator guarantees drop-in compatibility. Verify pin names, output-enable polarity, termination behavior, temperature grade, and lifecycle status before releasing a replacement or alternate-source BOM.
Compliance Information
The supplied verified web data does not provide formal RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. AEC-Q100 is marked not_applicable because the device is presented as a PCIe clock generator, not an automotive-qualified product; this is not a formal automotive qualification claim.
