Clock fanout for single-ended LVTTL trees
The Texas Instruments CDCVF310PW is a 1:10 fanout buffer that takes one LVTTL clock input and distributes it to ten LVTTL outputs. It handles clock rates up to 200 MHz, which covers the majority of board-level synchronous interfaces — SPI, parallel memory busses, and FPGA reference clocks — without needing a reclocking PLL. The supply range from 2.3V to 3.6V lets it sit on either a 2.5V or 3.3V rail, so it can bridge voltage domains in mixed-supply designs. Rated for the industrial temperature span of -40°C to 85°C, it fits outdoor telecom cabinets, factory-floor controllers, and base-station line cards.
200 MHz ceiling — what it means for the clock tree
The 200 MHz maximum frequency is the practical limit for the output edge rate and propagation consistency. If your system's fastest clock runs at 150 MHz, this buffer has 25% headroom before the output jitter starts degrading. For a 100 MHz reference driving ten FPGA banks, the 1:10 ratio saves a second buffer stage. The non-differential I/O (No/No) means this part is for single-ended LVTTL paths only — if your design uses LVPECL or LVDS, you need a different buffer family like the CDCLVP1204.
Supply and temperature — where it fits on the board
The 2.3V to 3.6V supply range covers the common 2.5V and 3.3V logic rails. At 3.3V the LVTTL outputs swing rail-to-rail, which gives clean noise margins into standard CMOS inputs. The industrial temperature rating (-40°C to 85°C) is the baseline for most non-automotive embedded systems — outdoor telecom, industrial control, and test equipment. If your ambient hits 105°C, this part is not rated for that; look at a wider-temp variant. The 24-TSSOP package (4.40 mm body width) is a fine-pitch surface-mount footprint; the 0.65 mm lead pitch needs a standard SMD reflow profile, and the MSL rating on the reel label tells you the bake requirement before rework.
Active lifecycle — no redesign pressure
The CDCVF310PW carries an Active product status per the manufacturer's lifecycle record. For a BOM line, this removes the urgency to qualify a second source or stockpile for an EOL. The part is ROHS3 compliant, which covers the EU RoHS exemption list through 2024. No lead-free transition issues on the assembly line.
Sourcing posture — quoted to order
This part is sourced through independent distribution channels. For small quantities or prototype builds, the 24-TSSOP package is straightforward to hand-assemble with a hot-air station and fine-tipped iron.