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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.

FemtoClock Crystal-to-LVDS Clock Generator

Package Information

CAD Model:View CAD Model
Pkg. Type:TSSOP
Pkg. Code:PGG16
Lead Count (#):16
Pkg. Dimensions (mm):5.0 x 4.4 x 1.0
Pitch (mm):0.65

Environmental & Export Classifications

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

Product Attributes

Lead Count (#)16
Pb (Lead) FreeYes
Carrier TypeTube
Core Voltage (V)3.3
Feedback InputNo
Input Freq (MHz)20 - 30
Input TypeCrystal, LVCMOS
Inputs (#)2
Length (mm)5
MOQ96
Moisture Sensitivity Level (MSL)1
Output Banks (#)4
Output Freq Range (MHz)150 - 187.5
Output TypeLVDS
Output Voltage (V)3.3
Outputs (#)2
Package Area (mm²)22
Pb Free Categorye3 Sn
Phase Jitter Typ RMS (ps)0.31
Pitch (mm)0.65
Pkg. Dimensions (mm)5.0 x 4.4 x 1.0
Pkg. TypeTSSOP
Product CategoryFemtoClock
Prog. ClockNo
Qty. per Carrier (#)96
Qty. per Reel (#)0
Reference OutputNo
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Spread SpectrumNo
Tape & ReelNo
Temp. Range (°C)0 to 70°C
Thickness (mm)1
Width (mm)4.4

Description

The 844252-04 is a 10Gb/12Gb Ethernet clock generator. The device can synthesize 10 Gigabit Ethernet and 12 Gigabit Ethernet with a 25MHz crystal. It can also generate SATA and 10Gb Fibre Channel reference clock frequencies with the appropriate choice of crystals. The 844252-04 has excellent phase jitter performance and is packaged in a small 16-pin TSSOP, making it ideal for use in systems with limited board space.