ISPPAC-CLK5304S-01TN48C

The Lattice Semiconductor ISPPAC-CLK5304S-01TN48C is an in-system-programmable zero-delay universal fan-out buffer designed for clock distribution applications. It supports input/output frequencies ranging from 8MHz to 267MHz, featuring low output-to-output skew of less than 100ps and peak-to-peak jitter below 70 ps.

This device offers up to 20 programmable fan-out buffers with support for various single-ended output standards including LVTTL, LVCMOS, HSTL, eHSTL, and SSTL. It also provides programmable output impedance from 40 to 70 Ω in 5 Ω increments and programmable slew rate. The buffer operates with a supply voltage between 3V and 3.6V and is available in a 48-TQFP package.

Key features include a fully integrated high-performance PLL with programmable lock detect and on-chip loop filter, compatible with spread spectrum clocks. It offers precision programmable phase adjustment per output with 8 settings and up to +/- 5ns skew range. The device supports up to three clock frequency domains and features flexible clock reference and external feedback inputs with programmable termination.

The ISPPAC-CLK5304S-01TN48C is suitable for circuit board common clock distribution, PLL-based frequency generation, and high fan-out clock buffering applications. It is designed for surface mount installation and operates within a commercial temperature range of 0°C to 70°C.