PLL deskew buffer for 133.3 MHz clock trees
The Cypress CY2308SC-3T is a PLL-based zero delay buffer that takes a single-ended clock input and produces four synchronized output copies with near-zero propagation delay between input and output. It integrates a phase-locked loop with bypass capability, so you can either deskew the clock tree or feed the reference straight through. The 133.3 MHz maximum frequency covers PCI, Ethernet, and common processor reference clocks. Supply range of 3V to 3.6V aligns with standard 3.3V logic rails.
2:4 fanout with zero-delay alignment
Two inputs feed four outputs (2:4 ratio), with no differential signalling — single-ended CMOS levels only. The single PLL circuit locks to the selected input and aligns all four outputs in phase. The bypass mode lets you route the input directly to outputs without PLL intervention, useful for test modes or low-jitter paths where deskew is not needed. The divider is present (Yes), the multiplier is not (No), so output frequencies are integer sub-multiples of the input.
Commercial temperature, narrow SOIC-16
The 16-SOIC package uses the narrow 3.90mm body width — confirm your PCB footprint matches the 150-mil (3.90mm) SOIC land pattern, not the wider 208-mil (5.30mm) version. Surface-mount assembly with standard reflow profiles applies.
Active lifecycle, no LTB concern
Note the RoHS non-compliant designation — this part is not lead-free; verify your assembly's RoHS exemption policy if you are shipping into regulated markets.
Sourcing and BOM fit
This is a single-source Cypress (now Infineon) part with no listed second-source alternate. For the CY2308SC-3T, the 2:4 ratio and bypass capability are the distinguishing features.