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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.

Alternative(s) Available
551S - Low Skew 1 to 4 Clock Buffer
  • Notes:Improved jitter performance, smaller package, 1.8V to 3.3V supply voltage

Features

  • Low skew (250 ps) outputs
  • Pb-free packaging
  • Low cost clock buffer
  • Packaged in 8-pin SOIC
  • Input/Output clock frequency up to 160 MHz
  • Non-inverting output clock
  • Ideal for networking clocks
  • Operating Voltages of 3.3 and 5.0 V
  • Output Enable mode tri-states outputs
  • Advanced, low power CMOS process
  • Commercial and industrial temperature versions

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.

Part NumberStatusSamplesStockPackageBudgetary Price (USD)Lead Count (#)Carrier TypeMoisture Sensitivity Level (MSL)Qty. per Reel (#)Qty. per Carrier (#)Pb (Lead) FreePb Free CategoryTemp. Range (°C)Country of AssemblyCountry of Wafer Fabrication
551MILFNRNDN/AIn StockSOIC1ku | $1.058#Tube1097#Yese3 Sn-40 to 85°CTAIWANSINGAPORE
551MILFTNRNDN/AIn StockSOIC1ku | $1.058#Reel13000#0Yese3 Sn-40 to 85°CTAIWANSINGAPORE
551MLFNRNDN/AIn StockSOIC1ku | $0.88#Tube1097#Yese3 Sn0 to 70°CTAIWANSINGAPORE
551MLFTNRNDN/AIn StockSOIC1ku | $0.88#Reel13000#0Yese3 Sn0 to 70°CTAIWANSINGAPORE
551MLNObsoleteN/AOut of StockSOIC8#Tube1097#Yese3 Sn0 to 70°C
551MLNTObsoleteN/AOut of StockSOIC8#Reel13000#0Yese3 Sn0 to 70°C

Support Communities

  1. Build new hex file from Keil C

    Hello, I used the codeless example_531_databum in SDK 6.38.20.66. When I used keil C v5 to build that example, the DA14531 was not advertise.  However, I used the codeless_531_datapump.hex in BInary folder, it worked well. I have not known how it did ...

    Jul 9, 2025
  2. missing information SLG88103

    The OPAMP SLG88103/4 does not contain all the information that is required.Unfortunately, I am missing information on the PDx pins in the datasheet:- Absolute maximum ratings for the PDx pins?- Are there ESD protection diodes on the PDx pins?- Input logic high (min, typ, max)?- Input logic ...

    Jul 9, 2025
  3. RX65N Erasing data flash problems

    Hi all, flash_err_t err; volatile uint32_t addr; volatile uint8_t g_buf[FLASH_CF_MEDIUM_BLOCK_SIZE]; /* Erase code flash block */ err = R_FLASH_Erase(FLASH_DF_BLOCK_0, 1); if(err != FLASH_SUCCESS) { while(1) ; } addr = (uint32_t)FLASH_DF_BLOCK_0; memcpy(g ...

    Jul 9, 2025
View All Results from Support Communities (99)

Knowledge Base

  1. Runtime Java Exceptions in SSP

    ... plugins/org.eclipse.equinox.launcher_1.4.0.v20161219-1356.jar --launcher.library plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.551.v20171108-1834 --launcher.defaultAction openFile -vm features/com.renesas.jre.win32.win32.x86_1.8.0.181/jre/bin -vmargs -Declipse ...

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