It's a electronic part of the 56-VFQFN Exposed Pad package. There is a Tape & Reel (TR) packaged with it. In normal operation, 1.035GHz is the maximum value. As far as I can tell, it is mounted by Surface Mount. There is a classification of Fanout Buffer (Distribution), Divider, Multiplexer for this electronic part. It is recommended to set the temperature to -40°C~85°C in order to achieve reliable performance. Any power source will work, as long as it has 1.71V~3.465VV. There is an output of CML, CMOS, HCSL, HSTL, LVDS, LVPECL, SSTL. A electronic part of this series belongs to the SmartBuffer? family.
ZL40253LDF1 Features
The operating temperature of -40°C~85°C degrees
ZL40253LDF1 Applications
There are a lot of Microchip Technology ZL40253LDF1 Clock Buffers & Drivers applications.