Non-Volatile is its memory type. You can get memory ics in a Tape & Reel (TR) case. As you can see, it is embedded in 48-TFBGA case. It is estimated that the memory size on the chip is 64Mb 4M x 16. Memory data is stored in FLASH-format, which is common in mainstream devices. Featuring an extended operating temperature range of -40°C~85°C TA, this device allows it to be used in a variety of demanding applications. A supply voltage of 2.7V~3.6V can be applied to it. There is a recommended mounting type of Surface Mount for it. It is common to select similar parts by referring to the device's base part number, M28W640.
M28W640FCB70ZB6F TR Features
Package / Case: 48-TFBGA
M28W640FCB70ZB6F TR Applications
There are a lot of Micron Technology Inc. M28W640FCB70ZB6F TR Memory applications.