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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.

Features

  • Packaged in 20-pin (150 mil) SSOP (QSOP)
  • Available in Pb (lead) free package
  • 12.5 MHz or 25 MHz fundamental crystal or clock input
  • Six output clocks with selectable frequencies
  • SDRAM frequencies of 67, 83, 100, and 133 MHz
  • Buffered crystal reference output
  • Zero ppm synthesis error in all clocks
  • Ideal for PCM-Sierra's ATM switch chips
  • Full CMOS output swing with 25 mA output drive capability at TTL levels
  • Advanced, low-power, sub-micron CMOS process
  • Operating voltage of 3.3 V
  • Industrial temperature range only

Description

The IDT650-27 is a low cost, low-jitter, high-performance clock synthesizer for networking applications. Using analog Phase Locked Loop (PLL) techniques, the device accepts a 12.5 MHz or 25 MHz clock or fundamental mode crystal input to produce multiple output clocks for networking chips, PCI devices, SDRAM, and ASIDT. The IDT650-27 outputs all have zero ppm synthesis error. The IDT650-27 is pin compatible and functionally equivalent to the IDT650-07. It is a performance upgrade and is recommended for all new 3.3 V designs. See the MK74CB214, IDT551, and IDT552-01 for non-PLL buffer devices which produce multiple low-skew copies of these output clocks. See the IDT570, IDT9112-16/17/18 for zero delay buffers that can synchronize outputs and other needed clocks.

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