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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.

Features

  • Integrated terminations; save 20 resistors compared to standard HCSL outputs
  • 35 mW typical power consumption; minimal power consumption
  • OE# pin for each output; support DIF power management
  • HCSL differential input; can be driven by common clock sources
  • Spread spectrum tolerant; allows reduction of EMI
  • Programmable slew rate for each output; allows tuning for various line lengths
  • Programmable output amplitude; allows tuning for various application environments
  • 1 MHz to 167 MHz operating frequency
  • 3.3 V tolerant SMBus interface  works with legacy controllers
  • Selectable SMBus addresses; multiple devices can easily share an SMBus segment
  • Device contains default configuration; SMBus interface not required for device operation
  • Space-saving 5x5 mm 32-pin VFQFPN; minimal board space

Description

The 9DBU0541 is a member of IDT's 1.5 V Ultra-Low-Power (ULP) PCIe family. It has integrated terminations for direct connection to 100 ohm transmission lines. The device has 5 output enables for clock management, and 3 selectable SMBus addresses.

Parameters

AttributesValue
Diff. Outputs5
Diff. Output SignalingLP-HCSL
Output Freq Range (MHz)1 - 167
Diff. Inputs1
Diff. Input SignalingHCSL
Accepts Spread Spec InputYes
Power Consumption Typ (mW)34
Supply Voltage (V)1.5 - 1.5
Output TypeLP-HCSL
Package Area (mm²)25
Battery BackupNo
Battery SealNo
CPU Supervisory Function PORNo
Crystal Frequency TrimmingNo
Frequency Out PinNo
Input Freq (MHz)1 - 167
Additive Phase Jitter Typ RMS (fs)313
FunctionFanout Buffer
Input TypeHCSL
Output Banks (#)1
Core Voltage (V)1.5
Output Voltage (V)0.8
Product CategoryPCI Express Clocks

Package Options

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
VFQFPN5.0 x 5.0 x 0.9320.5

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