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Renesas Electronics Corporation

Renesas’ Timing product portfolio has been acquired by SiTime.

Datasheets, documentation, and sample orders remain available on Renesas.com through late 2026. For new designs, purchasing, support, and product inquiries, visit SiTime.com or send an email to [email protected]. Full transition to SiTime is expected by late 2026.

Alternative(s) Available
9ZXL1550D - 15-Output DB1900ZL PCIe Zero-Delay/Fanout Clock Buffer
  • Notes:Improved performance, reduced external components

Features

  • Fifteen 0.7V HCSL differential output pairs
  • Phase jitter: PCIe Gen3 < 1ps rms
  • Phase jitter: PCIe Gen2 < 3.1ps rms
  • Phase jitter: PCIe Gen1 < 86ps peak to peak
  • Phase jitter: QPI 9.6GT/s < 0.2ps rms
  • Supports zero delay buffer mode and fanout mode
  • Bandwidth programming available
  • 9 selectable SMBus addresses
  • 7 OE# pins; 90–140MHz operation in PLL mode
  • 33–150MHz operation in Bypass mode

Description

The 9ZX21501 is an Intel™ DB1900Z-compatible differential buffer suitable for PCI Express Gen3 or QPI applications. The part is backwards compatible to PCIe Gen1 and Gen2. A fixed external feedback maintains low drift for critical QPI applications.

Parameters

AttributesValue
Diff. Outputs15
Diff. Output SignalingHCSL
Output Freq Range (MHz)33 - 150
Diff. Inputs1
Diff. Input SignalingHCSL
Accepts Spread Spec InputYes
Power Consumption Typ (mW)1287
Supply Voltage (V)3.3 - 3.3
Output TypeHCSL
Diff. Termination Resistors64
Package Area (mm²)81
Battery BackupNo
Battery SealNo
CPU Supervisory Function PORNo
Crystal Frequency TrimmingNo
Frequency Out PinNo
Inputs (#)1
Input Freq (MHz)33 - 150
FunctionBuffer
Input TypeHCSL
Output Banks (#)1
Core Voltage (V)3.3
Output Voltage (V)0.7
Product CategoryProcessor Clock Buffers, Zero Delay Buffers

Package Options

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
VFQFPN9.0 x 9.0 x 0.9640.5

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