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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.

Alternative(s) Available

Features

  • 9 LVCMOS/LVTTL outputs
  • Selectable CLK0 and CLK1 can accept the following input levels: LVCMOS and LVTTL
  • Maximum output frequency: 110MHz
  • Output skew: 500ps (maximum)
  • Part-to-part skew: 2ns (maximum)
  • 3.3V operating supply
  • -40°C to 85°C ambient operating temperature
  • Lead-Free package available

Description

The 83947I is a low skew, 1-to-9 LVCMOS 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 byutilizing the ability of the outputs to drive two series terminated lines. Guaranteed output and part-to-part skew characteristics make the 83947I ideal for high performance, single ended applications that also require a limited output voltage.

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