Memory ICs, Serial NOR Flash (SPI) Memory, MX25R6435FZAIL0, Macronix

 MX25R6435F- J Grade ULTRA LOW POWER, 64M-BIT [x 1/x 2/x 4] CMOS MXSMIO® (SERIAL MULTI I/O) FLASH MEMORY

https://www.futureelectronics.com/p/semiconductors--memory--flash--norflash--serial/mx25r6435fzail0-macronix-5065464