Clock fanout for single-ended rails
The Renesas 5V2305NRGI is a 1:5 fanout buffer designed to take one LVCMOS or LVTTL clock input and distribute it to five LVCMOS outputs with minimal skew. It operates from a 2.3 V to 3.6 V supply, making it a direct fit for 2.5 V and 3.3 V clock trees in industrial and communications gear. The non-differential I/O path means it handles single-ended clocks only — no CML, LVPECL, or LVDS inputs.
200 MHz ceiling — what it buys you
Rated for a maximum frequency of 200 MHz, this buffer comfortably covers the common 100–166 MHz DDR, Ethernet, and FPGA reference clock ranges. The 1:5 ratio lets a single oscillator feed five loads — typically PLLs, SerDes transceivers, or multiple ASICs — without needing a second buffer stage. At the supply tolerance end, the 2.3 V minimum ensures operation through a 3.3 V rail dipped to 2.7 V during brownout or cold-crank.
Package and thermal pad
Housed in a 16-VFQFPN with exposed pad (3.5 mm × 4.0 mm body), the part is surface-mount and requires a thermal via stitch under the pad for continuous operation near the 85 °C top end. The small footprint suits dense PCB layouts where board area is tight — typical in base stations, industrial controllers, and test equipment.