Skip to main content
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.

FemtoClock Crystal-to-LVDS Clock Generator

Package Information

CAD Model:View CAD Model
Pkg. Type:TSSOP
Pkg. Code:PGG8
Lead Count (#):8
Pkg. Dimensions (mm):3.1 x 4.4 x 1.0
Pitch (mm):0.65

Environmental & Export Classifications

Moisture Sensitivity Level (MSL)1
Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090

Product Attributes

Lead Count (#)8
Carrier TypeTube
Moisture Sensitivity Level (MSL)1
Qty. per Reel (#)0
Qty. per Carrier (#)96
Pb (Lead) FreeYes
Pb Free Categorye3 Sn
Temp. Range (°C)0 to 70°C
App Jitter CompliancePCIe Gen1, PCIe Gen2
ArchitectureCommon
Core Voltage (V)3.3
Diff. Output SignalingLVDS
Diff. Outputs1
Diff. Termination Resistors1
Input Freq (MHz)24.5 - 34
Input TypeCrystal
Inputs (#)1
Length (mm)3.1
MOQ96
Output Banks (#)1
Output Freq Range (MHz)100 - 100, 125 - 125
Output TypeLVDS
Output Voltage (V)3.3
Outputs (#)1
PLLYes
Package Area (mm²)13.6
Phase Jitter Typ RMS (ps)0.773
Pitch (mm)0.65
Pkg. Dimensions (mm)3.1 x 4.4 x 1.0
Pkg. TypeTSSOP
Power Consumption Typ (mW)314
Product CategoryFemtoClock, Low Jitter Clocks (<700 fs RMS), PCI Express Clocks
Prog. ClockNo
Reference OutputNo
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Spread SpectrumNo
Supply Voltage (V)3.3 - 3.3
Tape & ReelNo
Thickness (mm)1
Width (mm)4.4
Xtal Freq (MHz)25 - 25

Description

The 844201-45 is a PCI Express® Clock Generator. The 844201-45 can synthesize 100MHz or 125MHz reference clock frequencies with a 25MHz crystal. The 844201-45 has excellent phase jitter performance and is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space.