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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-LVCMOS/LVTTL Frequency Synthesizer

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

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

Product Attributes

Lead Count (#)16
Carrier TypeReel
Moisture Sensitivity Level (MSL)1
Qty. per Reel (#)2500
Qty. per Carrier (#)0
Pb (Lead) FreeYes
Pb Free Categorye3 Sn
Temp. Range (°C)-40 to 85°C
Core Voltage (V)2.5V, 3.3V
Feedback InputNo
Input Freq (MHz)25 - 25
Input TypeCrystal
Inputs (#)1
Length (mm)5
MOQ2500
Output Banks (#)1
Output Freq Range (MHz)62.5 - 62.5, 125 - 125, 156.25 - 156.25
Output Skew (ps)12
Output TypeLVCMOS
Output Voltage (V)2.5V, 3.3V
Outputs (#)2
Package Area (mm²)22
Phase Jitter Typ RMS (ps)0.47
Pitch (mm)0.65
Pkg. Dimensions (mm)5.0 x 4.4 x 1.0
Pkg. TypeTSSOP
Product CategoryFemtoClock, Low Jitter Clocks (<700 fs RMS)
Prog. ClockNo
Reel Size (in)13
Reference OutputNo
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Spread SpectrumNo
Tape & ReelYes
Thickness (mm)1
Width (mm)4.4

Description

The 840002I-01 is a two output LVCMOS/LVTTL Synthesizer optimized to generate Ethernet reference clock frequencies. Using a 25MHz 18pF parallel resonant crystal, the following frequencies can be generated based on the two frequency select pins (F_SEL[1:0]): 156.25MHz, 125MHz, and 62.5MHz. The 840002I-01 uses Renesas' third generation low phase noise VCO technology and can achieve 1ps or lower typical random rms phase jitter, easily meeting Ethernet jitter requirements. The 840002I-01 is packaged in a small 16-pin TSSOP package.