It's a electronic part of the 20-SSOP (0.154, 3.90mm Width) package. Tape & Reel (TR) is the form in which it is packaged. As you can see, it is mounted by Surface Mount. There is a classification of Fanout Buffer (Distribution) for this electronic part. Set the temperature to 0°C~70°C for reliable performance. It should be capable of operating with a power supply of 4.5V~5.5V volts. As a result, it produces CMOS, LVTTL. The structure belongs to the IDT49FCT805 family of structures. It belongs to the 49FCT series of electronic parts.
49FCT805BTQG8 Features
The operating temperature of 0°C~70°C degrees
49FCT805BTQG8 Applications
There are a lot of Renesas Electronics America Inc. 49FCT805BTQG8 Clock Buffers & Drivers applications.