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Renesas 9FGL0241DKILF
- Part No.:
- 9FGL0241DKILF
- Manufacturer:
- Renesas
- Category:
- Application Specific Clock/Timing
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
9FGL0241DKILF.pdf
- Description:
- 9FGL0241D PCIE GEN1-5 CLK GEN_AP
- Quantity:
- Payment:
- Shipping:
Inventory:396
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Product details
Overview
9FGL0241DKILF from Renesas Electronics is a 3.3V PCIe Gen1–5 clock generator with 4 differential 100MHz HCSL output pairs, dedicated OE# pins per output for PCIe CLKREQ# support, and one 3.3V LVCMOS REF output with Wake-on-LAN capability. It operates from a 25MHz crystal or reference input and delivers 90fs RMS typical phase jitter in PCIe Gen5 Common Clocked mode.
For engineers reviewing the 9FGL0241DKILF datasheet, 9FGL0241DKILF pinout, 9FGL0241DKILF application, or 9FGL0241DKILF equivalent, key selection criteria include PCIe Gen5 jitter compliance (≤150fs RMS), integrated 85Ω/100Ω termination, SMBus-selectable spread spectrum (–0.25%, –0.5%, 0%), and low-power 1.05V VDDIO option - all within a compact 5×5 mm 32-VFQFPN package.
Technical Context
The 9FGL0241DKILF implements a single-loop SSC-capable PLL optimized for PCIe timing architectures, supporting Common Clocked (CC) and Independent Reference (IR) modes with SRIS/SRNS spread spectrum. Its PLL locks to a 25MHz XIN/CLKIN_25 input and synthesizes four 100MHz differential outputs with ±0ppm synthesis error.
Each of the four DIF/DIF# output pairs features independent OE# control, internal 120kΩ pull-downs, and configurable slew rate, amplitude, and impedance (85Ω or 100Ω) via SMBus. The device includes dedicated VDDIO, VDDA, VDDDIG, and VDDREF rails, enabling precise power domain isolation and 1.05V VDDIO operation for up to 35% power savings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output count | 4 × differential 100MHz HCSL output pairs (DIF0–DIF3) |
| PCIe Gen5 jitter | 90fs RMS typical (Common Clocked architecture), meets ≤150fs RMS spec |
| Cycle-to-cycle jitter | <50ps on all differential outputs - ensures stable sampling margins |
| Output skew | <50ps output-to-output skew - critical for multi-lane PCIe synchronization |
| Synthesis accuracy | ±0ppm differential output frequency error - eliminates long-term drift in CC systems |
| Spread spectrum | Pin-selectable: 0%, –0.5%; SMBus-selectable: –0.25% - enables flexible EMI reduction |
| Power supply | VDDIO supports 1.05V (35% lower power vs. 3.3V) - reduces thermal load in dense server boards |
Pinout & Package
9FGL0241DKILF is housed in a 5×5 mm, 0.5 mm pitch 32-VFQFPN package (Renesas part number NLG32) with exposed pad (EPAD) connected to GND. Pin assignments follow the 9FGL04x1D variant layout per datasheet Figure 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XIN/CLKIN_25 | Reference input | 25MHz crystal or clock input; primary PLL reference source |
| DIF0–DIF3 | Differential true output | 100MHz HCSL true-side clocks; each paired with complementary # pin |
| DIF0#–DIF3# | Differential complement output | 100MHz HCSL complement-side clocks; forms low-skew differential pairs |
| vOE0#–vOE3# | Output enable (active-low) | Per-output PCIe CLKREQ#-compatible control; internal 120kΩ pull-down |
| vSADR/REF3.3 | Configurable I/O | Latched SMBus address select or 3.3V LVCMOS REF clock copy |
| ^CKPWRGD_PD# | Power-good input | Signals valid VDD; low = power-down mode, high = normal operation |
| SCLK_3.3 / SDATA_3.3 | SMBus interface | 3.3V-tolerant serial bus for configuration; supports two addresses |
| VDDIO | Output power rail | Supplies differential outputs; configurable for 1.05V (low-power) or 3.3V operation |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 85Ω/100Ω terminations | Eliminates four external resistors per output pair - saves PCB area and improves signal integrity |
| Wake-on-LAN REF output | 3.3V LVCMOS REF remains active during power-down (Byte 3, bit 5 = 1) - enables remote system wake-up |
| Default configuration boot | Operates immediately after power-up without SMBus initialization - simplifies system boot sequence |
| Clean PLL lock gating | Differential outputs blocked until PLL achieves lock - prevents glitchy startup on PCIe links |
| Tri-level spread select (^vSS_EN_tri) | Hardware pin selects PCIe mode (M/1) or 12kHz–20MHz mode (0) - avoids accidental mode switching |
Applications
| PCIe Gen5 Server Interconnect | nVME Storage Controller Timing |
|---|---|
Use Scenario: High-density 2U/4U servers requiring synchronized 32 GT/s PCIe lanes across CPU, GPU, and SmartNICs. IC Role / Device Role / Timing Role: Primary Common Clocked (CC) reference generator distributing jitter-clean 100MHz clocks to multiple PCIe root complexes and endpoints. Use Value: 90fs RMS jitter ensures PCIe Gen5 link training success and BER <10⁻¹² under worst-case channel loss. | Use Scenario: Enterprise NVMe U.2/U.3 SSD enclosures with dual-port controllers and RAID acceleration ASICs. IC Role / Device Role / Timing Role: Low-skew (<50ps) 4-output clock source driving host interface, flash controller, and PCIe switch simultaneously. Use Value: Per-output OE# pins allow dynamic lane shutdown during idle, reducing system power by >12% in burst-read workloads. |
| AI Accelerator Rack Timing | Industrial PCIe-Based Control System |
Use Scenario: Multi-accelerator racks (e.g., NVIDIA HGX) where PCIe Gen5 x16 links interconnect GPUs and DPU offload engines. IC Role / Device Role / Timing Role: Centralized clock distribution hub with SRIS-compatible spread spectrum to meet FCC Class A emissions limits. Use Value: SMBus-selectable –0.25% spread enables fine-tuned EMI suppression without compromising Gen5 timing margin. | Use Scenario: Ruggedized industrial PCs using PCIe-based motion control cards, vision capture modules, and real-time I/O expansion. IC Role / Device Role / Timing Role: Robust clock source operating across –40°C to +85°C with guaranteed 0ppm synthesis error and latch-up immunity. Use Value: Integrated 120kΩ pull-downs on all OE# pins eliminate external biasing components - enhancing reliability in vibration-prone environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PCIe clock generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 9FGP204BNLFT | 4-output, 3.3V PCIe Gen4-only; no Gen5 jitter compliance; fixed 0% spread only | Lacks SRIS/SRNS support and Gen5 phase jitter certification; higher cycle-to-cycle jitter (75ps) | Select only for cost-sensitive Gen4-only designs where Gen5 readiness is not required |
| PI6C557-04LEX | 4-output, 1.8V/3.3V dual-supply; no SMBus; fixed pin-strapped spread; no WOL REF | No Wake-on-LAN support; no VDDIO voltage scaling; limited spread options (–0.25% only) | Prefer when SMBus configuration is unnecessary and board already uses 1.8V logic domains |
Compared with 9FGP204BNLFT and PI6C557-04LEX, the 9FGL0241DKILF uniquely delivers PCIe Gen5-compliant jitter, per-output OE# control, SMBus-configurable spread, and 1.05V VDDIO operation - making it the only choice for next-generation server and AI accelerator timing where Gen5 readiness, EMI control, and power efficiency are co-constrained.
Availability
9FGL0241DKILF is available at Aetrix Electronics and suitable for PCIe Gen5 server interconnects, nVME storage controllers, AI accelerator rack timing, and industrial PCIe-based control systems requiring stable component supply, full lifecycle traceability, and volume procurement support.
Supply support for 9FGL0241DKILF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and timing solutions for automotive, industrial, and datacenter applications.
The 9FGL02x1/04x1/06x1/08x1D product line was designed specifically to meet PCIe Gen1–5 clocking requirements in high-performance computing, delivering ultra-low jitter, flexible spread spectrum, and robust power management in space-constrained packages.
FAQ
What is the PCIe Gen5 phase jitter performance of the 9FGL0241DKILF?
The 9FGL0241DKILF achieves 90fs RMS typical phase jitter in PCIe Gen5 Common Clocked architecture, well within the 150fs RMS maximum limit specified in the PCI Express Base Specification 5.0. This measurement is confirmed under standard test loads with 100,000-cycle captures on real-time oscilloscopes ≥20 GS/s, and applies specifically to the 9FGL0241DKILF variant operating at 3.3V VDDIO with default settings.
Does the 9FGL0241DKILF support Wake-on-LAN functionality?
Yes, the 9FGL0241DKILF supports Wake-on-LAN via its dedicated 3.3V LVCMOS REF output, which remains active during power-down mode when SMBus Byte 3, bit 5 is set to '1'. This allows the REF clock to sustain network controller logic while the rest of the system is in low-power state - a verified feature documented in the 9FGL0241DKILF datasheet Section 1.5 and Table 13.
What package type and pin count does the 9FGL0241DKILF use?
The 9FGL0241DKILF uses a 5×5 mm, 0.5 mm pitch 32-VFQFPN package (Renesas designation NLG32) with an exposed thermal pad (EPAD) connected to GND. Its pinout matches the 9FGL04x1D family variant, including 4 differential output pairs (DIF0–DIF3), 4 dedicated OE# inputs, and dual SMBus interface pins - all confirmed in datasheet Figures 3 and Table 1.5.
Can the 9FGL0241DKILF operate with a 1.05V VDDIO supply?
Yes, the 9FGL0241DKILF supports 1.05V operation on its VDDIO rail, enabling up to 35% power reduction versus 3.3V operation for differential outputs. This capability is explicitly enabled in the 9FGL04x1D and 9FGL06x1D variants per datasheet Section "Features", and the 9FGL0241DKILF shares the same VDDIO specification range (0.9975V–3.465V) in Table 5.
How many SMBus addresses does the 9FGL0241DKILF support?
The 9FGL0241DKILF supports two selectable SMBus addresses, configured via the vSADR/REF3.3 pin latched at power-up. This dual-address capability allows multiple 9FGL0241DKILF devices to share the same SMBus segment without address conflict - a feature confirmed in the "Features" section and Table 1.5 pin description of the 9FGL0241DKILF datasheet.
9FGL0241DKILF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- PLL:
- Yes
- Main Purpose:
- PCI Express (PCIe)
- Input:
- Clock, Crystal
- Output:
- HCSL, LVCMOS
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 1:2
- Differential - Input:Output:
- No/Yes
- Frequency - Max:
- 100MHz
- Voltage - Supply:
- 3.135V ~ 3.465V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-QFN (4x4)
9FGL0241DKILF FAQ
1.How can I place an order for 9FGL0241DKILF through Aetrix?
Please submit a Request for Quotation (RFQ) for 9FGL0241DKILF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 9FGL0241DKILF reliable?
The price and inventory of 9FGL0241DKILF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 9FGL0241DKILF is usually 5 days.
3.What payment methods are accepted for 9FGL0241DKILF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 9FGL0241DKILF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 9FGL0241DKILF?
9FGL0241DKILF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 9FGL0241DKILF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 9FGL0241DKILF?
For technical support, including 9FGL0241DKILF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 9FGL0241DKILF requirements.
6.How does Aetrix verify that 9FGL0241DKILF is sourced from the original manufacturer or authorized distributors?
All 9FGL0241DKILF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 9FGL0241DKILF meets industry standards.
7.What is the process for return or replacement of 9FGL0241DKILF?
All 9FGL0241DKILF units undergo pre-shipment inspection (PSI). If there is an issue with 9FGL0241DKILF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 9FGL0241DKILF part is unused and in its original packaging.
Return procedure for 9FGL0241DKILF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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