The Renesas Electronics 5PB11xx is a high-performance LVCMOS clock buffer family of devices. It has an additive phase jitter of 50fs RMS. There are five different fan-out variations available: 1:2 to 1:10. The 5PB11xx supports a synchronous glitch-free output enable (OE) function to eliminate any potential intermediate incorrect output clock cycles when enabling or disabling outputs. It can operate from a 1.8V to 3.3V supply.

High-performance 1:2, 1:4, 1:6, 1:8, 1:10 LVCMOS clock buffer
Very low pin-to-pin skew: < 50ps
Very low additive jitter: < 50fs
Supply voltage: 1.8V to 3.3V
3.3V tolerant input clock
fMAX = 200MHz
Integrated serial termination for 50Ω channel