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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 SalesClocks@sitime.com. Full transition to SiTime is expected by late 2026.

1 to 4 Clock Buffer

Package Information

CAD Model:View CAD Model
Pkg. Type:SOIC
Pkg. Code:DCG8
Lead Count (#):8
Pkg. Dimensions (mm):4.9 x 3.9 x 1.5
Pitch (mm):1.27

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 TypeReel
Moisture Sensitivity Level (MSL)1
Qty. per Reel (#)3000
Qty. per Carrier (#)0
Pb (Lead) FreeYes
Pb Free Categorye3 Sn
Temp. Range (°C)0 to 70°C
Core Voltage (V)3.3V, 5V
FunctionBuffer
Input Freq (MHz)160
Input TypeLVCMOS
Inputs (#)1
Length (mm)4.9
MOQ2500
Output Banks (#)1
Output Freq Range (MHz)160
Output Skew (ps)250
Output TypeLVCMOS
Output Voltage (V)3.3V, 5V
Outputs (#)4
Package Area (mm²)19.1
Pitch (mm)1.27
Pkg. Dimensions (mm)4.9 x 3.9 x 1.5
Pkg. TypeSOIC
Product CategoryClock Buffers & Drivers
Reel Size (in)13
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Tape & ReelYes
Thickness (mm)1.5
Width (mm)3.9

Description

The 551 is a low cost, high-speed single input to four output clock buffer. Part of Renesas' ClockBlocksTM family, this is our lowest cost, small clock buffer. See the 552-02B for monolithic dual version of the 551 in a 20 pin QSOP. IDT makes many non-PLL and PLL based low skew output devices as well as Zero Delay Buffers to synchronize clocks. Contact Renesas for all of your clocking needs.