There is a case available for the cut smart buffer in 20-TSSOP (0.173, 4.40mm Width). It is available in the case Tape & Reel (TR). The maximum value for normal operation is 650MHz. As far as I can tell, it is mounted by Surface Mount. An electronic component classified as Fanout Buffer (Distribution), Multiplexer is categorized as such. Setting the temperature to 0°C~70°C will ensure reliable performance. Any power source will work, as long as it has 3.135V~3.465VV. There is LVPECL output from clock driver. Basically, it belongs to the same family as the ICS85304-01.
85304AG-01LFT Features
The operating temperature of 0°C~70°C degrees
85304AG-01LFT Applications
There are a lot of Renesas Electronics America Inc. 85304AG-01LFT Clock Buffers & Drivers applications.