What this 1:2 clock buffer does on the board
The Renesas 83026BMI-01LF is a single-channel fanout buffer that takes one differential clock input and splits it into two LVCMOS or LVTTL outputs. It handles input standards including HCSL, LVDS, LVHSTL, LVPECL, and SSTL, so it can sit behind most common oscillator or PLL sources without needing a translator. The single 3.3 V supply rail (3.135 V to 3.465 V) keeps the power routing simple on a mixed-signal board. Rated for -40°C to 85°C operation, it fits industrial environments like factory automation controllers, base station timing cards, and test equipment where a clean, low-jitter clock distribution tree matters. The 350 MHz maximum frequency covers most Ethernet, FPGA reference clock, and ADC/DAC sampling clock applications.
350 MHz and the 1:2 fanout — what it means for your timing budget
At 350 MHz, this buffer can distribute a 156.25 MHz or 125 MHz Ethernet reference clock with plenty of margin. The 1:2 ratio means one input drives exactly two loads — useful for splitting a master clock to a pair of FPGAs or to a PHY and a processor without adding a second buffer stage. The differential input accepts a clean LVDS or LVPECL signal from a low-jitter oscillator; the LVCMOS outputs are single-ended, which saves board space but means the output traces need careful impedance control if the run is long. The input:output is differential-to-single-ended, so the input pair is differential but the outputs are standard CMOS levels. This matters when you are driving a clock input that expects LVCMOS levels — no level translation needed on the output side.
8-SOIC package — field-swappable or production solder
Housed in an 8-SOIC (0.154" body width, 3.90 mm wide), this is a hand-solderable, inspection-friendly package. No hot-air station needed for rework — a standard iron with a fine tip and some flux wick will get it off the board clean. Pin pitch is 1.27 mm, so a magnifying lamp is enough to verify solder joints; no microscope required. For a field-service kit, this is the kind of part you can carry a few of and swap on site.
Active production — no end-of-life scramble
The 83026BMI-01LF is listed as Active in production. ROHS3 compliant per, so it meets current European and global environmental requirements.