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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.

Low Skew,1-to-9 LVCMOS/LVTTL Fanout Buffer

Package Information

CAD Model:View CAD Model
Pkg. Type:TQFP
Pkg. Code:PRG32
Lead Count (#):32
Pkg. Dimensions (mm):7.0 x 7.0 x 1.4
Pitch (mm):0.8

Environmental & Export Classifications

Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090

Product Attributes

Lead Count (#)32
Carrier TypeTray
Moisture Sensitivity Level (MSL)3
Qty. per Reel (#)0
Qty. per Carrier (#)250
Pb (Lead) FreeYes
Pb Free Categorye3 Sn
Temp. Range (°C)-40 to 85°C
Additive Phase Jitter Typ RMS (fs)20
Additive Phase Jitter Typ RMS (ps)0.02
Core Voltage (V)3.3V, 2.5V
FunctionBuffer, Multiplexer
Input Freq (MHz)250
Input TypeLVPECL, LVDS, HSTL, SSTL, HCSL, LVCMOS
Inputs (#)2
Length (mm)7
MOQ250
Output Banks (#)1
Output Freq Range (MHz)250
Output SignalingLVCMOS
Output Skew (ps)500
Output TypeLVCMOS
Output Voltage (V)3.3V, 2.5V
Outputs (#)9
Package Area (mm²)49
Pitch (mm)0.8
Pkg. Dimensions (mm)7.0 x 7.0 x 1.4
Pkg. TypeTQFP
Product CategoryClock Buffers & Drivers, Clock Multiplexers
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Tape & ReelNo
Thickness (mm)1.4
Width (mm)7

Description

The 83947I-147 is a low skew, 1-to-9 LVCMOS/LVTTL Fanout Buffer. The low impedance LVCMOS/LVTTL outputs are designed to drive 50Ω series or parallel terminated transmission lines. The effective fanout can be increased from 9 to 18 by utilizing the ability of the outputs to drive two series terminated lines. Guaranteed output and part-to-part skew characteristics make the 83947I-147 ideal for high performance, 3.3V or 2.5V single ended applications.