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. 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. Mounting is surface mount only — no through-hole variant exists.