What this 1:4 fanout buffer does on your clock tree
The Renesas 553SCMGI is a single-ended fanout buffer that takes one clock input and distributes it to four outputs, rated to 200 MHz. It is not a PLL, jitter attenuator, or format converter — it is a clean fanout element for splitting a clock signal across multiple loads while maintaining signal integrity within its bandwidth. The 1:4 ratio matches the common need for one oscillator or PLL output to feed an FPGA bank, multiple ADCs, or a set of PHY devices on the same board. Supply voltage spans 1.71 V to 3.465 V, covering common logic families from a single rail. If your clock source is differential, you need a different part or an external converter before this buffer.
Package and mounting — fits tight layouts
Housed in an 8-UFDFN package (2x2 mm body), the 553SCMGI is a small-footprint surface-mount device. The supplier device package is listed as 8-VFQFN (2x2), which is the same mechanical outline. Mounting is surface mount only — no through-hole variant exists. The small pad geometry demands careful solder-paste stencil design and reflow profile control, especially for hand-assembly or rework in a lab environment.
Temperature grade and environment
Rated for -40°C to 105°C operating temperature, this is an industrial-grade part. It is suitable for outdoor telecom cabinets, factory-floor automation controllers, and other environments where the ambient temperature can swing beyond commercial limits.
Lifecycle and sourcing posture
The 553SCMGI is listed as Active with ROHS3 compliance. There is no NRND or LTB flag on this part, so it is a safe choice for new designs and production BOMs without near-term obsolescence risk.