Renesas 9DBU0231AKLF PCI Express (PCIe) clock buffer, PLL Yes, HCSL input, LP-HCSL output, 167 MHz max, 1.425V~1.575V supply, 1:2 fanout, 24-VFQFN exposed pad, 0°C~70°C.
| Parameter / Attribute | Specification / Value |
|---|---|
| Mounting | Surface Mount |
| Supply voltage | 1.425V ~ 1.575V |
| Frequency - max | 167MHz |
| Operating temperature | 0°C ~ 70°C |
| PLL | Yes |
| Input | HCSL |
| Output | LP-HCSL |
| Package | Tray |
| Main purpose | PCI Express (PCIe) |
| Case | 24-VFQFN Exposed Pad |
| Number of circuits | 1 |
| Ratio - Input:Output | 1:2 |
| Differential - Input:Output | Yes/Yes |
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The Renesas 9DBU0231AKLF is a 1:2 PCI Express (PCIe) clock buffer with an integrated PLL. It accepts a standard HCSL input and delivers two LP-HCSL outputs. Maximum output frequency is 167 MHz. The part runs from a 1.425 V to 1.575 V supply.
The 1.425 V to 1.575 V supply range means the part fits boards that already have that rail.
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Input is HCSL; output is LP-HCSL. Maximum frequency is 167 MHz. Supply voltage is 1.425 V to 1.575 V. It has a 1:2 input-to-output ratio. Package is a 24-VFQFN with exposed pad (4x4 mm). Operating temperature is 0°C to 70°C. Differential input and output are both Yes.
The suffix 'T' typically indicates Tape & Reel packaging. The 9DBU0231AKLF (no T) ships in a Tray. Electrically they are identical. Choose based on your assembly line's feeder preference.
Yes, it is ROHS3 compliant, which means it meets the lead-free directive.
There is no direct pin-compatible second source listed. The closest functional peer is the 9DB803DFLFT, which also has a PLL and targets PCIe, but its output is HCSL (not LP-HCSL) and its supply is 3.135 V. The 9DBL411BGLFT has LP-HCSL output but no PLL. Neither is a drop-in replacement; verify your board's supply rail and output level requirements.