650 MHz 1:10 low-skew clock distribution
The Infineon (Cypress) CY2CC910OIT is a 1:10 fanout buffer designed to distribute a single AVCMOS clock input to ten outputs with low skew. It handles clock frequencies up to 650 MHz, making it suitable for high-speed timing distribution in telecom, networking, and data-communications equipment where maintaining signal integrity across multiple branches matters. The part operates from a 1.71V to 3.3V supply range, with additional narrower windows of 2.375V to 3.3V and 3.135V to 3.3V, giving flexibility when interfacing with different logic families. The input and output are both single-ended AVCMOS — no differential signaling — so it fits designs using standard CMOS clock sources rather than LVPECL or LVDS.
What the supply voltage ranges mean for your BOM
The CY2CC910OIT lists three overlapping supply ranges: 1.71V to 3.3V, 2.375V to 3.3V, and 3.135V to 3.3V. This is not a mistake — it reflects the device's ability to operate across different voltage domains depending on the input signal swing and output load. The widest range (1.71V to 3.3V) covers low-voltage cores down to 1.8V logic, while the tighter windows ensure proper switching thresholds at higher supply levels. For a BOM running a 3.3V clock tree, any of the three ranges works; for a 1.8V I/O bank, only the 1.71V to 3.3V window applies. Plan the supply rail accordingly and confirm the input voltage meets the AVCMOS thresholds at your chosen VDD.
The 20-SSOP package (0.209" body width, 5.30 mm) is a surface-mount footprint common in moderate-density designs.
Lifecycle and compliance note
If your assembly line requires RoHS-10 exemption or full lead-free processing, verify the exemption status or look for a lead-free variant suffix. For defense, aerospace, or high-reliability applications where leaded finish is preferred, this is actually an advantage.