There is a case of 20-TSSOP (0.173, 4.40mm Width) in which it is packaged. There is a Tape & Reel (TR) package attached to it. The maximum value for normal operation is 650MHz. As you can see, it is mounted by Surface Mount. The electrical component has a classification of Fanout Buffer (Distribution), Multiplexer. To ensure reliable performance, the temperature should be set to -40°C~85°C. In general, it should be able to work with a power source of 3.135V~3.465V volts. The output of it is LVPECL. This is a member of the IDT85304 family.
IDT85304-01PGGI8 Features
The operating temperature of -40°C~85°C degrees
IDT85304-01PGGI8 Applications
There are a lot of Renesas Electronics America Inc. IDT85304-01PGGI8 Clock Buffers & Drivers applications.