GENERAL DESCRIPTION
The W39V040FC is a 4-megabit, 3.3-volt only CMOS flash memory organized as 512K ×8 bits. For
flexible erase capability, the 4Mbits of data are divided into 16 x 8 Kbytes pages and 6 x 64 Kbytes
sectors or 8 x 64 Kbytes sectors.