What this zero delay buffer does on the board
The Renesas 2305-1DCGI is a single-circuit zero delay buffer with an internal PLL that can be bypassed, accepting an LVTTL input and distributing it as CMOS, LVCMOS, or TTL outputs across a 1:5 fanout ratio. It runs from a 3V to 3.6V supply and handles clock frequencies up to 133 MHz. The PLL with bypass feature means you can either clean up a jittery incoming clock or, when bypassed, simply fan out a clean clock without added phase noise — useful for debugging or low-jitter paths.
Where it fits — temperature and package
Rated for -40°C to 85°C, this part is comfortable in industrial environments: motor drives, outdoor telecom cabinets, factory automation panels. The 8-SOIC package (3.90 mm width) is a standard footprint that reflows easily and fits tight layouts. Surface-mount only — no through-hole version.
Lifecycle and sourcing reality
The 2305-1DCGI carries an Active lifecycle status and is ROHS3 compliant. For a BOM line that needs a 1:5 zero delay buffer at 3.3V, this is a stable choice without an imminent replacement hunt.